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air-cooled roots-liquid ring vacuum system
Closed Cycle Water Ring Vacuum System
Closed Cycle Water Ring Vacuum System Image

1. The normal operation of the water ring vacuum pump requires a lot of working fluid. Based on the different size of the pump, per hour of working fluid consumption is from 0.12m3 / h to 50m3 / h. If we only rely on continuous external water supply, then the consumption of water accumulated every year is very large. The application of the closed cycle vacuum system of the water ring pump can avoid the waste of working fluid.
2. In chemical industry, there are toxic and harmful liquid, and some flammable and explosive gas, the circulating fluid is not allowed to communicate with the outside world. So as to avoid pollution of the workplace, closed cycle vacuum system which adopts flow parts stainless steel & mechanical seal can solve such problems.
3. When under the situation that water quality can not be guaranteed, serious scale may be caused after running a very short period of time. And this can affect the normal operation of the pump. Then we can add a softening tank before the pump, composed of equipment similar to closed-loop unit to monitor the level with constantly adding soft water. By doing this can we guarantee the good operation of the system.
4. In order to make the system running smoothly and reliably, the pump group can be set to one open and one close (for preparation), or multiple open and multiple close (for preparation). When start the operation of the system, we open several pumps at the same time to meet the system process requirements within short time. Then after the return signal, electronically controlled or remote closed off the spare pump, leaving only one or several to maintain the pump to maintain the system vacuum, reducing the power of the entire system, shorten the process time and improve the automation.
5. Large equipment of water ring complete sets of vacuum pump systems can be used in gas drainage, pressure adsorption, transportation filtration and other industries. Our company designed a full set of mobile gas pumping pumping station, and equipped with a sound monitoring and control system, all supporting 2BE products to ensure the unit’s reliable operation.
6. When in the evacuation of closed containers, such as drying systems, the system required vacuum is much higher than the water ring pump, then we can connect Roots pump to become a Roots – water ring vacuum system to improve the suction capacity, ultimate vacuum to meet the requirements. The ultimate pressure of three Roots units plus water ring vacuum pumps can be about 0.5Pa.
7. High-pressure water ring compressor application must be added after a rear separator, the container is a pressure vessel category, playing the role of a gas-water separation, voltage transmission, and can provide circulating fluid. This kind of compressors can compress hydrogen, acetylene and other chlor-alkali industry generated gas. Generally with heat exchangers, centrifugal pumps and other accessories, all units only need to stay the interface, with user-friendly installation and commissioning.
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Industrial vacuum furnace vacuum system
Industrial vacuum furnace vacuum system Image

Vacuum Gas Quenching Furnace is applied for quenching high-speed tool steel, measuring vacuum hardening and cutting steel, tool steel and other alloy steel, with convection heating function, which can achieve the process of step hardening, isothermal quenching, but also tempering, annealing, carburizing, nitriding and other heat treatment process. Ultimate pressure :cooling gas ,6Bar or 10Bar.
The control system was controlled by PLC, temperature was controlled by intelligent temp controller, accurate control,high automation. User can choose auto or manual undisturbed switching tooperate it, this furnace has abnormal condition alarming function, easy to operate.
Environmental protection performance of vacuum furnace has been improved, maintenance cost saving, energy cost saving.

Open Cycle Water Ring Vacuum System
Open Cycle Water Ring Vacuum System Image

1. The normal operation of the water ring vacuum pump requires a lot of working fluid. Based on the different size of the pump, per hour of working fluid consumption is from 0.12m3 / h to 50m3 / h. If we only rely on continuous external water supply, then the consumption of water accumulated every year is very large. The application of the closed cycle vacuum system of the water ring pump can avoid the waste of working fluid.
2. In chemical industry, there are toxic and harmful liquid, and some flammable and explosive gas, the circulating fluid is not allowed to communicate with the outside world. So as to avoid pollution of the workplace, closed cycle vacuum system which adopts flow parts stainless steel & mechanical seal can solve such problems.
3. When under the situation that water quality can not be guaranteed, serious scale may be caused after running a very short period of time. And this can affect the normal operation of the pump. Then we can add a softening tank before the pump, composed of equipment similar to closed-loop unit to monitor the level with constantly adding soft water. By doing this can we guarantee the good operation of the system.
4. In order to make the system running smoothly and reliably, the pump group can be set to one open and one close (for preparation), or multiple open and multiple close (for preparation). When start the operation of the system, we open several pumps at the same time to meet the system process requirements within short time. Then after the return signal, electronically controlled or remote closed off the spare pump, leaving only one or several to maintain the pump to maintain the system vacuum, reducing the power of the entire system, shorten the process time and improve the automation.
5. Large equipment of water ring complete sets of vacuum pump systems can be used in gas drainage, pressure adsorption, transportation filtration and other industries. Our company designed a full set of mobile gas pumping pumping station, and equipped with a sound monitoring and control system, all supporting 2BE products to ensure the unit’s reliable operation.
6. When in the evacuation of closed containers, such as drying systems, the system required vacuum is much higher than the water ring pump, then we can connect Roots pump to become a Roots – water ring vacuum system to improve the suction capacity, ultimate vacuum to meet the requirements. The ultimate pressure of three Roots units plus water ring vacuum pumps can be about 0.5Pa.
7. High-pressure water ring compressor application must be added after a rear separator, the container is a pressure vessel category, playing the role of a gas-water separation, voltage transmission, and can provide circulating fluid. This kind of compressors can compress hydrogen, acetylene and other chlor-alkali industry generated gas. Generally with heat exchangers, centrifugal pumps and other accessories, all units only need to stay the interface, with user-friendly installation and commissioning.

CVS Centre Vacuum System
CVS Centre Vacuum System Image

<div id=”Productinfo”><p>Construction: <br>CVS series Vacuum system adopt <a title=”SV rotary vane vacuum pump” href=”http://www.evpvacuum.com/p-en-74-SV_rotary_vane_vacuum_pump.html” target=”_blank”>SV single-stage rotary vane vacuum pump </a>as host machine, and it is equipment integration equipped with a vacuum tank, vacuum gauge, automatic control system etc. <br>The system features: <br>To adopt environmentally high-performance vacuum pump, no oil injection <br>Manual and automatic can be control to option, the vacuum can be set to adjust <br>Two options of vacuum tank: Vertical or horizontal <br>Simple operation and strong vacuum, can meet every kinds of inquire from different customers. <br>Easy moving, space small <br>CVS intergration is a preferred central Vacuum system for enterprise…</p><p>Application:</p><p>CVS Series Pump System can offer vacuum source for medical gas station in varied large or middle size hospital. Meanwhile, it is widely applied in chemical industry, canning system of light industry, pressure molding of polymer processing components in automobile industry, extruding machine degassing, as well as electric and food industry. Besides, it plays an irreplaceable role in V-EPC casting technology, mainly for casting process. For example, it can act as the vacuum source in the infusion and casting process of anti-flaming transportation type, which has been adopted in mine and coal exploitation.</p><p> </p> </div>

JK Oil Diffusion Pump System
JK Oil Diffusion Pump System Image

<div id=”Productinfo”><p style=”TEXT-INDENT: 0px; BACKGROUND: rgb(255,255,255); MARGIN-LEFT: 0px”><span style=”FONT-FAMILY: arial, helvetica,sans-serif; FONT-SIZE: 12px”><span style=”FONT-STYLE: normal; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; FONT-WEIGHT: normal”>JK Oil Diffusion Pump System aims for high vacuum pumping, which can reach around 10</span><span style=”FONT-STYLE: normal; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; VERTICAL-ALIGN: super; FONT-WEIGHT: normal”>-2</span><span style=”FONT-STYLE: normal; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; FONT-WEIGHT: normal”>–10</span><span style=”FONT-STYLE: normal; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; VERTICAL-ALIGN: super; FONT-WEIGHT: normal”>-4</span><span style=”FONT-STYLE: normal; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; FONT-WEIGHT: normal”> Pa. The whole system equipped with main <a title=”oil diffusion pump” href=”http://www.evpvacuum.com/p-en-85-K_Oil_Diffusion_Pump.html” target=”_blank”>oil diffusion pump</a>, valves, water-cooling baffle, pipe, and mechanical pump (a system of roots-pump). Since the improvement of the main pump and baffle, this system’s pumping capacity in low vacuum has been highly increased.</span></span></p><p style=”TEXT-INDENT: 0px; BACKGROUND: rgb(255,255,255); MARGIN-LEFT: 0px”><span style=”FONT-FAMILY: arial, helvetica,sans-serif; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; FONT-WEIGHT: normal”>The main advantage of this system is its high pumping speed (from 190L/s to 49,000L/s) and long-term continuous working stability. </span></p><p style=”TEXT-INDENT: 0px; BACKGROUND: rgb(255,255,255); MARGIN-LEFT: 0px”><span style=”FONT-FAMILY: arial, helvetica,sans-serif; BACKGROUND: rgb(255,255,255); LETTER-SPACING: 0px; COLOR: rgb(51,51,51); FONT-SIZE: 12px; FONT-WEIGHT: normal”>JK series system is widely applied in high tech field, such as electric, chemistry, metallurgy, aviation, aerospace, material, bio-medicine, A-energy, universe exploration, etc. Besides, there are still many other normal industries are using this system as well, such as various vacuum furnance, vacuum coating machine, vacuum freezing or drying system. </span></p><p> </p> </div>

JZJ2B Roots-Liquid Ring Pump System
JZJ2B Roots-Liquid Ring Pump System Image

Introduction:
JZJ2B series Roots-Liquid Ring Pump System is a vacuum pumping system containing a roots pump as its main pump, and a 2BV types of liquid ring pump or a system of roots-liquid ring pump as fore pump.
Advantage:
Comparing with common liquid ring vacuum pump,the capacity to remain high pumping speed under high or ultimate vacuum degree becomes its main advantage. Except for normal gas suction, this system can also pump special gas with small amount of vapor or dust. Additionally, this system is free from oil pollution, as well as vapor and dust.
Since the 2BV type of liquid ring pump has been adopted as its fore pump, the JZJ2B series system is more efficient than JZJ2S series (which 2SK type of liquid ring pump has been adopted). And it is compact-designed with no air leakage and high protection level. Besides,our 2BV type is more anti corrosive than 2SK type, because all 2BV impeller are albronze material.
Another note, the fore pump can be designed as a closed circulation system so to reduce the environment pollution greatly.
Application:
JZJ2B series system has become an ideal choice for vacuum drying or dehydration process, and vacuum degassing process in the field of light textile, food industry, chemistry, pharmacy, etc.

JZJA(P)LG Screw pump system
JZJA(P)LG Screw pump system Image

Introduction:

JZJA(P)LG series Screw vacuum pump system belongs to oil-free dry vacuum system, with roots pump(main pump & secondary pump), dry screw pump (fore pump). Roots pump is similar to screw pump in working principle and structure. The vacuum system could be assembled reasonably as per the size of pumped system, vacuum receiver and its working pressure. The available suction ratio ranges from 1:2 to 1:8 among variant pump.

Advantage:

1) With both advantage of roots pump and screw pump.

2) With doubled capacity and high pressure matching with large capacity roots pump.

3) Energy saving for large capacity.

4) High pumping capacity in high vacuum pressure.

5) Automatic controlling system

6) Capable for corrosive gas pumping.

7) Small area request with vertical or stepped construction.

8) With self protecting function for over-load, over-fluid, water-break condition.

9) Hard to accumulate dust or particles, specially suitable for condensable medium or dust suction.

Application:

It can be widely applied in industry like medicine, chemical, aerospace, electrical, solar energy, metallurgy, and food industry. In chemical industry, it is necessary for process of vacuum distillation, vacuum evaporation, vacuum dehydration and crystallization. And in electric industry, for process of vacuum impregnation and vacuum drying. Beside, it’s the ideal choice for vacuum coating, vacuum melting, thermal treatment, oil filtration, vacuum freezing, space simulation test, etc.

JZJP Roots Ejection Pump System
JZJP Roots Ejection Pump System Image

<div id=”Productinfo”><p><span style=”FONT-FAMILY: arial, helvetica,sans-serif; FONT-SIZE: 12px”><span style=”FONT-FAMILY: arial, helvetica,sans-serif; BACKGROUND: rgb(255,255,255); COLOR: rgb(51,51,51)”>JZJP Roots Ejection Pump System adopt <span style=”TEXT-DECORATION: underline”><span style=”COLOR: #000080″>roots pump </span></span>as main pump, and water ejection pump as backing pump. Additionally, the main pump includes a middle pump, which has anti-corrosive and easy corroded two types for different request. The anti-corrosive one is painted with anti-corrosive paint. Matching with a vertical water ejection pump, corrosive gas pumping is workable for this pump. The first level roots pump can reach an ultimate vacuum degree at 150 Pa, and the second one, 25 Pa. </span><span style=”FONT-FAMILY: arial, helvetica,sans-serif; COLOR: rgb(51,51,51)”><br></span></span></p><p><span style=”FONT-FAMILY: arial, helvetica,sans-serif; COLOR: rgb(51,51,51); FONT-SIZE: 12px”>Application:</span></p><p><span style=”FONT-FAMILY: arial, helvetica,sans-serifFONT-FAMILY: 宋体; BACKGROUND: rgb(255,255,255); COLOR: rgb(51,51,51); FONT-SIZE: 12px”>JZJP roots ejection pump system can be applied in the process of vacuum drying, vacuum distillation, vacuum concentration, and the industry of metallurgy, petrochemical, paper making, food industry, electric industry. As per various customer requiring, multilevel pump system for pumping capacity and vacuum degree improving is available. </span></p><p> </p> </div>

JZP2H type Roots and piston Vacuum system
JZP2H type Roots and piston Vacuum system Image

Roots and Rotary piston vacuum pump system has a remarkable energy saving effect. It has very fast pumping speed during high vacuum pressure range. It’s widely used in electric power industry of transformer, wire and cable, condenser vacuum impregnation, vacuum drying process. It’s the ideal vacuum equipment for the industry of vacuum coating, vacuum smelting, vacuum heat treatment, vacuum oil filter, freeze drying, aviation simulation test.
It should be equipped with filter device if the gas contains small amount of water vapor or dust.
Roots and Rotary piston vacuum pump system incldues two pumps (roots vacuum pump as main pump and the rotary vacuum pump as backing pump). It takes the vacuum relay or electric contact pressure gauge to realize the roots and rotary piston pump’s automatic opening and closing and automatic overload protection.The whole system is installed in one mounting skid, which equipped with pipelines, valves, electrical control box, cooling water pipe system. This system has the advantages of compact structure and convenient operation.
The speed ratio range of each pump is from 4:1 to 10:1 which decided by the vacuum system size and ultimate pressure level. There is a pneumatic solenoid valve in the inlet pipe on the first stage to avoid the oil suction back when pump stops. The pneumatic solenoid valve moves towards with the motor, When the rotary piston pump stops, it pumps inlet gas and ensure the vacuum oil returns to the fuel tank of piston pump preventing the vacuum system from the vacuum oil pollution.

JZPS Roots-Liquid ring Vacuum system
JZPS Roots-Liquid ring Vacuum system Image

<p>Roots-water ring vacuum system (JZJ type) consists of <a title=”ZJ roots vacuum pump” href=”http://www.evpvacuum.com/p-en-70-ZJ_Roots_Vacuum_Pump.html” target=”_blank”>ZJ type roots vacuum pump </a>and the backing pump,suh as <a title=”2be water ring vacuum pump” href=”http://www.evpvacuum.com/p-en-65-2BE1_series_Liquid_ring_vacuum_pump.html” target=”_blank”>2BE</a>/<a title=”2bv water ring vacuum pump” href=”http://www.evpvacuum.com/p-en-64-2BV_series_Liquid_ring_vacuum_pump.html” target=”_blank”>2BV</a>/<a title=”water ring vacuum pump” href=”http://www.evpvacuum.com/p-en-113-2SK_liquid_ring_vacuum_pump.html” target=”_blank”>2SK</a> series water ring vacuum pump. It can not only pump the common gas but also can pump the gas that contains vapor and a little dust. <br>it is widely used in pharmaceutical, chemical industry, vacuum distillation, material dehydration, vacuum impregnation of electrical industry, kerosene vapor phase drying, powder metallurgy sintering, freeze drying technology in food industry.</p>

JZPX series roots-rotary pump system
JZPX series roots-rotary pump system Image

Introduction:

JZPX series roots-rotary pump system contains ZJ series roots pump as main pump and single or double stage rotary vane pump as fore pump. It is an ideal machine to achieve for low or high vacuum degree. Besides, the whole system will match the connecting pipe, valve, electric cabinet, and water cooling system (except for the two smallest models) as well. All components are assembled in one shell frame with the pumps, which is compact-designed and convenient to operation.

Advantage:

JZPX series system is your wonderful choice to remain high vacuum. It can continuously work for long time and owns the character of low noise. With a magnetic discharge valve (which will start or stop together with the fore pump)connecting the fore pump and pipe, this system can prevent the oil on the rotary pump being sucked back to the vacuum tank.

Application:

With the capability of sucking incondensable or non-corrosive air, as well as atmosphere, JZJX series roots-rotary system is widely applied in varied vacuum system for low or high vacuum, or high pumping capacity. Such as vacuum smelting, molten steel degassing, vacuum sintering,a dynamic vacuum achieving in large space simulation test, vacuum impregnation treating for power capacitors or transformers,

exhaust on fluorescent tube or bulb automatic production line, continuous air discharge for vacuum flask manufacturing, pre-pumping for vacuum coating machine, pumping for magnesium reduction process, degassing for single crystal silicon refining process, etc.

PVD vacuum coating machine system
PVD vacuum coating machine system Image

Operational principle:
CJHL Series Magnetron Multi-arc Vacuum Coating Machine is integrated by multi-arc ion coating and magnetron sputtering coating deposition technologies, It equipments with planar targets or cylindrical targets . It not only have the High ionization rate, High deposition rate of the ion coating way. But also have the low temperature and high stability .Especially applies to all kinds of metal films, multi-layer film, alloy film chemicals, such as coating the super-hard wear-resistant film, anti-corrosion film and decorative film (gold, silver, black, red, blue, green and other colors), the multilayer films can
be coated in combining with the magnetron sputtering technology, stainless steel, aluminum, titanium, tungsten and other metal films can also be coated, such as TiN, TiC, TiCN, TiAlN, CrN, CU, AU, diamond film (DLC), decorative film ,metal film , nonmetal film and its compound layer and the composite film.
Application field:
It applies to hardware, glass crafts, ceramic crafts, such as watches, mobile phone metal shell, sanitary ware, mould, electronic products, crystal glass, glasses, cutlery, knives and so on. You can make super-hard wear-resistant film coating, anti-corrosion film, decorative film (gold color, rose gold, brown, brown, bronze, blue, black, white, gray and other colors), it combined with magnetron sputtering technique can be plated the multilayer composite membrane and manufactured plated stainless steel, aluminum, titanium, tungsten and other metal films may be manufactured as coated TIN, TIC, TICN, TIALN, CRN, CU, AU, diamond film (DLC), decorative film metal , film and non-metallic composite coating film and its compounds film.
Main Feature:
1. it equipments cryogenic ion secondary source, some substrate without heating the material , It can directly do the cold plating film at room temperature, save energy, increase productivity.
2. the maximum of the temperature for tool coating chamber can 600 degrees ,In addition to the tool Coater coating applications require heating device, other applications do not need the device.
3. High deposition rate, High coating speed, It can be widely used to do the decorative coating, functional coating on a variety of products . so it is a ideal equipment to do the high-grade and best coating for mass production.
4. Magnetron sputtering principle is based on the theory of the cathode glow discharge , it expend the cathode surface magnetic field near the work piece surface. Then it improves the sputtered atom ionization rate. It keeps the magnetron sputtering uniformity , also can improve the surface shining effect.
5,. The arc plasma evaporation source is reliable, it can work under 40A current in optimizing the cathode and the magnetic field structure , . It will happen atomic diffusion between the coating and the material. It also has the advantages that Ion Beam Assisted Deposition.
6, Vacuum pumping system, electric control system and complete vacuum coating system can be customized according to user requirements.

Vacuum freeze dryer Vacuum system
Vacuum freeze dryer Vacuum system Image

Introduction
Vacuum freeze dryer for high-end raw materials, Chinese medicine Pieces, seafood, wild vegetables, dehydrated vegetables, food, fruit, chemical intermediates and other materials dry.
Vacuum freeze-drying machine will be refrigeration system, vacuum system, thermal oil heating system, a combination of dehumidification system, a new type of box structure, the larger use of storage materials within the box space for drying vacuum drying, drying powder Have a good dispersion.
Frozen vacuum drying process is free of impurities into the object, to maintain the original ingredients and active ingredients and material body is not damaged.

working principle
After the start of the material into the material box to freeze the material of the freezing process, on the one hand is a vacuum system to vacuum part of the water away; the other hand, when the material is frozen when the water contained in some molecules The surface of the material is frozen, and after the freezing requirements are reached, the material is heated and dried by the heating system. The moisture contained in the material is brought to the freezing collection tank by vacuuming to meet the requirements of freeze drying.
Frozen drying refers to the process by which sublimation removes water or other solvents from frozen biological products. Sublimation refers to the solvent, such as water, like dry ice, without liquid, from solid to direct into the process of gaseous. The product obtained by freeze drying is called lyophilizer, which is called lyophilisation. Traditional dryness can cause the material to shrink and destroy the cells. The structure of the sample during the freeze-drying process will not be destroyed because the solid component is supported by ice in its position. In the ice sublimation, it leaves the pores in the dry residue. This preserves the integrity of the biological and chemical structure of the product and its activity. In the laboratory, freeze-dried has many different uses, it is in many biochemical and pharmaceutical applications is indispensable. It is used to obtain long-term preservation of biological materials, such as microbial culture, enzymes, blood, and drugs, in addition to long-term preservation of stability, but also retains its inherent biological activity and structure. For this reason, lyophilization is used to prepare tissue samples for structural studies (eg, electron microscopy). Freeze-drying is also used in chemical analysis to obtain a dry sample or to concentrate the sample to increase the analytical sensitivity. Freeze-dried so that the sample composition is stable, do not need to change the chemical composition, is the ideal analysis of auxiliary means. Freeze-drying can occur naturally. In the natural case, this process is slow and unpredictable. Through the freeze-drying system, people improved, subdivided a lot of steps to speed up the process.

classification
From the structure points
Bell-type freeze-drying machine: freeze-drying chamber and cold trap for the vertical structure of the upper and lower, freeze-drying chamber without pre-freeze function. The type of freeze dryer in the material after the end of pre-freeze into the drying process requires manual operation. Most of the experimental freeze-drying machines are bell-type, its structure is simple, low cost. Most of the freeze-drying chamber using transparent plexiglass cover, easy to observe the freeze-dried materials. [2]
In situ freeze-drying machine: freeze-drying chamber and cold trap for two separate cavity, freeze-drying chamber with cooling function, the material into the freeze-drying chamber, the material pre-freeze, drying process without manual operation The This type of freeze-drying machine has a complicated manufacturing process and high manufacturing cost. However, the in-situ freeze-drying machine is the ideal choice for the freeze-drying process. It is especially suitable for pharmaceutical, biological products and other special products. Lyophilized.
A, ordinary type b, multi-manifold type c, gland type
From the function points
Ordinary shelf type: material in bulk material, suitable for food, Chinese herbal medicine, powdery materials freeze-dried.
With gland device type: suitable for Xilin bottled material drying, freeze-dried preparation, according to the need to separate the material in the vials, floating cover a good bottle after the freeze-drying, dry after the operation of gland press the bottle , To avoid secondary pollution, re-adsorption of water, easy to long-term preservation.
Multi-manifold type: in the drying room outside the flask, the frozen in the bottle wall of the material drying, then the flask as a container connected to the manifold outside the tank, the flask material heated by room temperature, through the differences Tube switch device, can be removed at any time or installed on the flask, do not need to stop.
With pre-frozen functional type: material pre-freezing process, cold trap as a pre-frozen pre-frozen material, in the drying process, cold trap for the catcher, to capture the material overflow of water. Pre-freeze function with freeze-drying machine, freeze-drying process of pre-freezing, drying, etc. are completed in the freeze dryer, freeze-drying machine using high efficiency, saving the cost of low-temperature refrigerator.
Choose a few freeze-drying machine should pay attention to the parameters
Freeze dry area
The number in the freeze-drying machine model represents the freeze-dried area of ??the freeze-drying machine. For example, the freeze-drying area of ??the LGJ-18C type freeze-drying machine is 0.18㎡. Users should be based on their own needs, through the calculation to determine how much need to freeze the dry area of ??the freeze dryer. For example, each batch of freeze-dried 1.8 kg (l) liquid volume of the product, with the material tray loading materials, each loaded 10 mm thick, you can calculate the dry layer of dry weight:
A (area, ㎡) = V (volume, m) / H (height, m) = 0.0018m / 0.01m = 0.18㎡
That is required to use the board load area of ??0.18 square meters of freeze dryer.
Cold trap temperature
In theoretically, the lower the cold trap temperature, the higher the trap capacity of the cold trap, but the cold trap temperature is low, the refrigeration requirements are high, the machine cost and running cost are high. Experimental series of freeze-drying machine cold trap temperature is mainly around -45 ℃, -60 ℃ or so, -80 ℃ and so on several grades. Freeze temperature of -45 ℃ freeze-dried for some easy to freeze-dried products, cold trap temperature of about -60 ℃ freeze dryer for most of the products freeze-dried, cold trap temperature of -80 ℃ freeze-dried Suitable for freeze-drying of some special products. The effect of cold trap temperature on catching capacity shows that the temperature of cold trap decreases from -35 ℃ to -55 ℃, and the catching ability is improved obviously. The cold trap temperature is lower than -55 ℃, and the catching ability of cold trap is not obvious. Therefore, in the absence of special needs, the choice of cold trap temperature around -60 ℃ is the ideal choice. The cold trap temperature of LGJ-10D freeze-drying machine in the four-ring freeze-drying machine is ≤-55 ℃, the freezing temperature of LGJ-18 series and LGJ-25 series is less than -60 ℃, and the refrigerant is cooled by mixed refrigerant Technology, in the case of the same refrigeration unit, the cooling temperature is low, the cooling capacity is large, the working stability is high and the failure rate is low. The four-cycle freeze-drying machine also includes a LGJ-10 freeze dryer with a cold trap temperature of ≤ -45 ° C for lyophilisation of products that are easily lyophilized. LGJ-50C freeze-drying machine cold trap temperature ≤ -80 ℃, especially for pharmaceutical and special products freeze-dried. [3]
3, the cooling rate
Cooling rate reflects the refrigeration system cooling capacity, in the case of no-load, the cold trap temperature should be within 1 hour to reach the minimum temperature specified by the target. For example, a chiller with a cold trap temperature of ≤-60 ° C, the machine should start from the beginning of the cooling and the time when the cold trap temperature reaches -60 ° C should be no more than 1 hour.
4, the ultimate degree of vacuum
The ultimate vacuum reflects the leakage of the freeze dryer and the evacuation efficiency of the vacuum pump. The vacuum of the freeze box, the past view that the vacuum is the higher the better, the industry’s view that the vacuum should be within a reasonable range. Vacuum is too high, is not conducive to heat transfer, drying speed but decreased, but in any case freeze-drying box vacuum limit should be more than 15Pa vacuum.
5, the vacuum time
The temperature of the freezers in the freezer should be drawn from the atmospheric pressure to 15 Pa within half an hour.
6, the board temperature uniformity and flatness:
The uniformity and flatness of the slab temperature have a great influence on the homogeneity of the product quality. The better the temperature uniformity and the flatness, the better the uniformity of the dry product quality. Freeze-drying shelf shelf temperature control of the heater type and the middle fluid type, the use of intermediate fluid control plate layer freeze-drying machine shelf temperature uniformity and smoothness, and this freeze-drying machine board for the hollow sandwich structure, Of the cooling and heating through the intermediate fluid in the plate inside the fluid channel to achieve, so the board temperature uniformity. Four-stage freeze-drying machine LGJ-50C type freeze dryer on the use of shelf intermediate fluid technology. Bell-type freeze-drying machine shelf temperature control are basically using the heater, board temperature consistency is slightly worse. But in general, the temperature difference between the medicine should be controlled at ± 1.5 ℃, the temperature difference between the plate is ± 1 ℃, the food freeze dryer can be relaxed.
7, the control system
Freeze-drying machine control system types and functions vary, for the experimental series of freeze-drying machine, mainly used in the material freeze-drying process to explore and a small amount of trial production. Therefore, the control system should be able to display the freeze-drying process parameters in real time and automatically record; set, modify and effectively carry out freeze-drying process; with communication interface for easy data collection and preservation.

ZJZSK Roots Liquid Ring Vacuum Pump System
ZJZSK Roots Liquid Ring Vacuum Pump System Image

Introduction:

ZJZSK series roots-liquid ring pump system connected a roots vacuum pump as its main pump and a backing pump (2SK liquid ring vacuum pump).

Advantage:

Equipped with a liquid ring pump as its backing pump, this system has successfully overcome some shortages for separate liquid ring pump application. Such as low ultimate vacuum in usage, slow pumping speed in certain vacuum degree. Simultaneously, the advantages like high pumping capacity and fast start-up time for roots pump has been remained. Another note, this system can pump a large amount of condensable vapor. This trait will be more obvious especially when the gas contains too much vapor to be pumped by gas ballast oil-sealed mechanical pump, or the pump performance is influenced when pump oil exacerbated by the pump oil, or oil pollution is impermissible for the vacuum system. Matching with an anti-explosive motor and properly operated, explosive gas can be pumped by this system.

Application:

JZJSK series roots liquid ring vacuum pump system is widely used in the chemistry industry, such as below process: vacuum distillation, vacuum evaporation, dehydration and crystallization, etc. And the system is also required by following industry and process, freezing and drying in food industry, vacuum drying in medical industry, stripe slicing in light textile industry, high-altitude simulation test in vacuum system.

For technical specification of each pump and other types of roots liquid ring vacuum pump, please check below inter-linkage.

Inter-linkage: ZJ series roots pump2SK liquid ring vacuum pumpJZJ2B roots liquid ring vacuum pumpJZPS roots liquid ring vacuum pump.

Closed Cycle Water Ring Vacuum System Image
Closed Cycle Water Ring Vacuum System
1. The normal operation of the water ring vacuum pump requires a lot of working fluid. Based on the different size of the pump, per hour of working fluid consumption is from 0.12m3 / h to 50m3 / h. If we only rely on continuous external ... Read More
Specifications:

2.jpg

Industrial vacuum furnace vacuum system Image
Industrial vacuum furnace vacuum system
Vacuum Gas Quenching Furnace is applied for quenching high-speed tool steel, measuring vacuum hardening and cutting steel, tool steel and other alloy steel, with convection heating function, which can achieve the process of step hardenin... Read More
Specifications:

Model

Temperature Uniform Size

MAX Temperatire

Cooling Gas
Pressure

Pressure rising rate

Temperature Uniformity

Loading Capacity

RVGQ-224

200*200*400mm(W*H*L)

1300

6/10/15/20Bar

0.5Pa/h

±5

30Kg

RVGQ-335

300*300*500mm(W*H*L)

1300

6/10/15/20Bar

0.5Pa/h

±5

50Kg

RVGQ-446

400*400*600mm(W*H*L)

1300

6/10/15/20Bar

0.5Pa/h

±5

100Kg

RVGQ-669

600*600*900mm(W*H*L)

1300

6/10/15/20Bar

0.5Pa/h

±5

200Kg

RVGQ-7710

700*700*1000mm(W*H*L)

1300

6/10/15/20Bar

0.5Pa/h

±5

500Kg

RVGQ-8812

800*800*1200mm(W*H*L)

1300

6/10/15/20Bar

0.5Pa/h

±5

800Kg

RVGQ-V0405

φ400*500mm(vertical)

1300

6/10/15/20Bar

0.5Pa/h

±5

100kg

RVGQ-V0507

φ500*700mm(vertical)

1300

6/10/15/20Bar

0.5Pa/h

±5

200kg

RVGQ-V7011

φ700*1100mm(vertical)

1300

6/10/15/20Bar

0.5Pa/h

±5

800Kg

Open Cycle Water Ring Vacuum System Image
Open Cycle Water Ring Vacuum System
1. The normal operation of the water ring vacuum pump requires a lot of working fluid. Based on the different size of the pump, per hour of working fluid consumption is from 0.12m3 / h to 50m3 / h. If we only rely on continuous external ... Read More
Specifications:

111.jpg

CVS Centre Vacuum System Image
CVS Centre Vacuum System
<div id=”Productinfo”><p>Construction: <br>CVS series Vacuum system adopt <a title=”SV rotary vane vacuum pump” href=”http://www.evpvacuum.com/p-en-74-SV_rotary_vane_vacuum_pump.html” target=”_blank”&... Read More
Specifications:

Size

Speed(m3/h)

Vacuum pump

Pump

quantity

Pressure(MPA)

Vacuum tank(m3)

CVS-1X010

10

SV-010

1pcs

0~-0.1

0.06-0.2

CVS-1X020

20

SV-020

1 pcs

0~-0.1

0.06-0.2

CVS-1X025

25

SV-025

1 pcs

0~-0.1

0.06-0.2

CVS-1X040

40

SV-040

1 pcs

0~-0.1

0.06-0.2

CVS-1X063

63

SV-063

1 pcs

0~-0.1

0.06-0.2

CVS-1X100

100

SV-100

1 pcs

0~-0.1

0.06-0.2

CVS-1X160

160

SV-160

1 pcs

0~-0.1

0.3-2

CVS-1X250

250

SV-250

1 pcs

0~-0.1

0.3-2

CVS-1X300

300

SV-300

1 pcs

0~-0.1

0.3-2

CVS-2X010

20

SV-010

2 pcs

0~-0.1

0.06-0.3

CVS-2X020

40

SV-020

2 pcs

0~-0.1

0.06-0.3

CVS-2X025

50

SV-025

2 pcs

0~-0.1

0.06-0.3

CVS-2X040

80

SV-040

2 pcs

0~-0.1

0.06-1

CVS-2X063

126

SV-063

2 pcs

0~-0.1

0.3-2

CVS-2X100

200

SV-100

2 pcs

0~-0.1

0.3-2

CVS-2X160

320

SV-160

2 pcs

0~-0.1

0.5-2

CVS-2X250

500

SV-250

2 pcs

0~-0.1

0.5-2

CVS-3X100

100

SV-100

3 pcs

0~-0.1

0.5-2

CVS-3X160

480

SV-160

3 pcs

0~-0.1

0.5-2

CVS-3X250

750

SV-250

3 pcs

0~-0.1

0.5-2

CVS-3X300

900

SV-300

3 pcs

0~-0.1

0.5-2

Pump System Components Specification:

CVS13.jpg

weblink: SV rotary vane vacuum pump, vacuum valeves, vacuum parts.

JK Oil Diffusion Pump System Image
JK Oil Diffusion Pump System
<div id=”Productinfo”><p style=”TEXT-INDENT: 0px; BACKGROUND: rgb(255,255,255); MARGIN-LEFT: 0px”><span style=”FONT-FAMILY: arial, helvetica,sans-serif; FONT-SIZE: 12px”><span style=”FONT-STYLE: normal;... Read More
Specifications:

Model

Max.

Pressure

Suction

speed

Max. suction pressure

Heating power

Main Pump

Baffle

valve

fore pump

Connecting flange

Dimension

mm

Pa

L/s

Pa

Kw

H

L

JK-200

1*10-4

420

35

1.5

K-200

LB-200B

GD-200

2X-8

LF-200

1000

750

JK-300

900

2.1

K-300

LB-300A

GDQ-300

2X-15

LF-300

1300

850

JK-400

1800

4.8

K-400

LB-400

GDQ-400

2X-30

LF-400

1600

950

JK-630

4000

8.4

K-630

LB-630

GDQ-630

2X-70

LF-630

2000

1100

JK-800

6500

19.8

K-800

LB-800

GDQ-800

2X-70 ZJ-600

LF-800

2400

2000

JTK-100

180

0.8

KT-100

LB-100

GD-100

2X-4

LF-100

870

650

JTK-150

370

1.2

KT-150

LB-150A

GD-150

2X-8

LF-150

950

750

JTK-200

600

1.5

KT-200

LB-200B

GD-200

2X-15

LF-200

1000

850

JTK-300

1400

2.4

KT-300

LB-300A

GDQ-300

2X-30

LF-300

1300

950

JTK-400

2500

4.5

KT-400

LB-400

GDQ-400

2X-70

LF-400

1600

1150

JTK-500

4000

6

KT-500

LB-500

GDQ-500

2X-70 ZJ-600

LF-500

1700

1500

note: please check below interlink to check specification for each model.

K series oil diffusion pump, KT series oil diffusion pump, related vacuum system

JZJ2B Roots-Liquid Ring Pump System Image
JZJ2B Roots-Liquid Ring Pump System
Introduction: JZJ2B series Roots-Liquid Ring Pump System is a vacuum pumping system containing a roots pump ... Read More
Specifications:
JZJA(P)LG Screw pump system Image
JZJA(P)LG Screw pump system
Introduction: JZJA(P)LG series Screw vacuum pump system belongs to oil-free dry vacuum system, with roots pump(main pump & secondary pump), dry screw pump (fore pump). Roots pump is similar to screw pump in wo... Read More
Specifications:
JZJP Roots Ejection Pump System Image
JZJP Roots Ejection Pump System
<div id=”Productinfo”><p><span style=”FONT-FAMILY: arial, helvetica,sans-serif; FONT-SIZE: 12px”><span style=”FONT-FAMILY: arial, helvetica,sans-serif; BACKGROUND: rgb(255,255,255); COLOR: rgb(51,51,51)”&... Read More
Specifications:

Model

Suction Speed

Ultimate Pressure

Pump System Construction

Motor Power

L/s

Pa

Main Pump

Holding Pump

Backing Pump

Kw

JZJP-30.60

30

267

ZJ-30

RPP-40-60

3.7

JZJP-70.180

70

267

ZJ-70

RPP-54-180

9

JZJP-150.280

150

267

ZJ-150

RPP-65-280

18

JZJP-150.360

150

267

ZJ-150

PRR-65-360

18

JZJP-150.500

150

267

ZJ-150

RPP-80-500

18

JZJP-70.30.60

70

25

ZJ-70

ZJ-30

RPP-40-60

5.25

JZJP-150.70.180

150

25

ZJ-150

ZJ-70

RPP-54-180

12

JZJP-150.150.280

150

25

ZJ-150

ZJ-150

(low speed)

RPP-65-280

21

JZJP-300.150.300

300

25

ZJ-300

ZJ-150

RPP-65-360

22

JZJP-300.150.500

300

25

ZJ-300

ZJ-150

RPP-80-50

22

note: more specification for each model, please view below interlink.

zj roots pump, zjp roots pump,zjl roots pump, related vacuum system

JZPS Roots-Liquid ring Vacuum system Image
JZPS Roots-Liquid ring Vacuum system
<p>Roots-water ring vacuum system (JZJ type) consists of <a title=”ZJ roots vacuum pump” href=”http://www.evpvacuum.com/p-en-70-ZJ_Roots_Vacuum_Pump.html” target=”_blank”>ZJ type roots vacuum pump </a>and th... Read More
Specifications:

Model

Main
Pump

Backing
Pump

Pump

Speed

Ultimate
Pressure

Motor Power (Kw)

Main
Pump

Backing
Pump

I

II

L/S

Pa

Torr

-

I

II

JZPS30-1

ZJP30

SK1.5

-

30

3x10-2

2.25

0.75

4

-

JZPS70-1

ZJP70

2SK3

-

70

3x10-2

2.25

1.1

7.5

-

JZPS150-1

ZJP150

2SK6

-

150

3x10-2

2.25

2.2

11

-

JZPS300-1

ZJP300

SK12

-

300

3x10-2

2.25

4

22

-

JZPS600-1

ZJP600

SK25

-

600

3x10-2

2.5

7.5

45

-

JZPS70-21

ZJP70

ZJP30

SK1.5

70

100

0.75

1.1

0.75

4

JZPS150-21

ZJP150

ZJP70

2SK3

150

40

0.3

2.2

1.1

7.5

JZPS300-21

ZJP300

ZJP150

2SK6

300

40

0.3

4

2.2

11

JZPS600-21

ZJP600

ZJP300

SK12

600

40

0.3

7.5

4

22

JZPS1200-21

ZJP1200

ZJP600

SK25

1200

40

0.3

11

7.5

45

For specification of each pump, you can check below website.

web link: ZJP roots pump, 2SK water ring vacuum pump, ZJZBA roots-water ring vacuum pump, JZJ2B roots-water ring vacuum pump

JZPX series roots-rotary pump system Image
JZPX series roots-rotary pump system
Introduction: JZPX series roots-rotary pump system contains ZJ series roots pump as main pump and single ... Read More
Specifications:

Model

Pump Model

Pumping Speed

Ultimate Vacuum

Inlet Diam

Motor Power (Kw)

Main Pump

Fore Pump

Main Pump

Fore Pump

L/s

Pa

Torr

mm

JZPX70-4

ZJP70

2X-15

-

70

2x10-2

1.5x10-4

80

1.1

2.2

-

JZPX150-5

ZJP150

2X-30A

-

150

2x10-2

1.5x10-4

100

2.2

3

-

JZPX300-4

ZJP300

2X-70A

-

300

2x10-2

1.5x10-4

150

4

5.5

-

JZPX300-7

ZJP300

2X-30A

-

300

2x10-2

1.5x10-4

150

4

3

-

JZPX600-8

ZJP-600

2X-70A

-

600

2x10-2

1.5x10-4

200

7.5

5.5

-

JZPX150-42

ZJP1500

ZJP30

2X-15A

150

1x10-2

7.5x10-5

100

2.2

0.75

2.2

JZPX300-42

ZJP300

ZJP70

2X-30A

300

1x10-2

7.5x10-5

150

4

1.1

3

JZPX300-44

ZJP300

ZJP70

2X-15A

300

1x10-2

7.5x10-5

150

4

1.1

2.2

JZPX600-42

ZJP600

ZJP150

2X-70A

600

1x10-2

7.5x10-5

200

7.5

2.2

5.5

JZPX600-45

ZJPP600

ZJP150

2X-30A

600

1x10-2

7.5x10-5

200

7.5

2.2

3

JZPX1200-44

ZJP1200A

ZJP300

2X-70A

1200

1x10-2

7.5x10-5

250

11

4

5.5

Remark:

1. Above are recommended models as per national standards, other pumps can also match according to customer special demands.

2. For technical specificatio of each pump, please click inter-linkage as below and check them.

3. The pumping speed in above sheet is only the main pump capacity.

4. 2X series is a double stage rotary vacuum pump, the number behind 2X is its capacity.

Inter-linkage: ZJ series roots pump, 2X rotary vacuum pump, EZS Rotary Vane Pump

PVD vacuum coating machine system Image
PVD vacuum coating machine system
Operational principle: CJHL Series Magnetron Multi-arc Vacuum Coating Machine is integrated by multi-arc ion coating and magnetron sputtering coating deposition technologies, It equipments with planar targets or cylindrical targets... Read More
Specifications:

model

CJHL-800

CJHL-1000

CJHL-1200

CJHL-1400

CJHL-1600

CJHL-1800

Pumping speed

It will take less than 10 minutes from air pump to 9*10-3Pa

Ultimate vacuum

6*10-4Pa

pressure rising rate

0.67Pa/h

ion

Ф100 ion source ,6-----20 Sets

Ion source

5KW,45----160A, 6-----20 Sets

target

Cylindrical or planar targets 1----12 PCS

Target power source

10-----60KW DC or Mid-frequency 1-12sets

bias voltage

10--15KW

20KW

30KW

40KW

40--50KW

60KW

pump

Diffusion pump or molecular pump

heating

9KW

12KW

15KW

18KW

24KW

36KW

Work frame

It can be customized designed,public rotation,rotation speed can be controlled

gas

Precision meter control 1-4 road work gas

Control mode

Manual, semi-automatic and fully automatic control; Control panel use Chinese and English language

Vacuum freeze dryer Vacuum system Image
Vacuum freeze dryer Vacuum system
Introduction Vacuum freeze dryer for high-end raw materials, Chinese medicine Pieces, seafood, wild vegetables, dehydrated vegetables, food, fruit, chemical intermediates and other materials dry. Vacuum freeze-drying machine ... Read More
Specifications:
ZJZSK Roots Liquid Ring Vacuum Pump System Image
ZJZSK Roots Liquid Ring Vacuum Pump System
Introduction: ZJZSK series roots-liquid ring pump system connected a roots vacuum pump as its main... Read More
Specifications: