China Standard Multi Stage Industrial Oil Free Dry Air Vacuum Pump Machine manufacturer

Product Description

DS Series Dry Screw Vacuum Pump 


1.Exhaust Path Is Short, Reduce The Deposition Of Reactants.
Comparing with other types of dry vacuum pump,DENAIR screw vacuum pump has the shortest gas path in the vacuum pump and that could reduce the contamination of process gas. Screw rotors can play as a powder transmission mechanism,we runs well even there has lots of contamination inside the pump.

2.The Optimal Linear Sealing, The Pump Performance.
Patented rotor profile can provide rotor excellent sealing effects thus a larger clearance is allowable in between.Pump rotor wesring and rotor jam by the process contamination can be reduced by larger allowable clearcance.

3.Simple Structure, Low Fault Rate And Easy Maintenance
Screw type vacuum is composed by a pair of screw rotor and isolation plates are required in different between rotors and isolation plates can also be avoided.Overhaul CHINAMFG dry pump is much easier than other type of dry pump,so the erpair time is shorter and the cost is saver.

4.Microcomputer Operation, Remote Monitoring, Considerate Protection
Microprocessor controller provides lots of pump parameters for running status monitoring.Pump can be easily operated and monitored by the operation panel.Remote control software can help the customer monitor the pump running status remotely.

DS Vacuum Pump Speed Curve


1.Special cooling liquid cooling, to avoid the cooling water may cause corrosion to the hull. 

2.Mobile operation interface, convenient operation; Display and the actual work of vacuum pump and can be selected to both languages, according to the real close to the customer.

3.Catch the power connector, safe and convenient.

4.The nitrogen gas heater, make the vacuum pump is more suitable for CVD, PECVD and other semiconductor technique process.
5.The control signals and communication signal interface, remote monitoring was carried out on the vacuum. 


1.The health care industry.

2.Lighting industry.

3.A variety of analytical instruments.

4.Electronics, semiconductor industry. 

5.The power industry.

6.Refrigeration industry.

Technical Prameters

Type Unit DS180 DS250 DS360 DS540 DS720
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
Pumping speed m3/hr 180 216 250 3, China
And our factory is located in No.386,YangzhuangBang Street,Pingxing Rd.,Xindai Town,HangZhou,ZHangZhoug Province, China

Q3: Warranty terms of your machine? 
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines? 
A4: Yes, of course.

Q5: How long will you take to arrange production? 
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome.

Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: Vacuum
Work Function: Pre-Suction Pump
Working Conditions: Dry


vacuum pump

What Are the Advantages of Using Oil-Sealed Vacuum Pumps?

Oil-sealed vacuum pumps offer several advantages in various applications. Here’s a detailed explanation:

1. High Vacuum Performance: Oil-sealed vacuum pumps are known for their ability to achieve high levels of vacuum. They can create and maintain deep vacuum levels, making them suitable for applications that require a low-pressure environment. The use of oil as a sealing and lubricating medium helps in achieving efficient vacuum performance.

2. Wide Operating Range: Oil-sealed vacuum pumps have a wide operating range, allowing them to handle a broad spectrum of vacuum levels. They can operate effectively in both low-pressure and high-vacuum conditions, making them versatile for different applications across various industries.

3. Efficient and Reliable Operation: These pumps are known for their reliability and consistent performance. The oil-sealed design provides effective sealing, preventing air leakage and maintaining a stable vacuum level. They are designed to operate continuously for extended periods without significant performance degradation, making them suitable for continuous industrial processes.

4. Contamination Handling: Oil-sealed vacuum pumps are effective in handling certain types of contaminants that may be present in the process gases or air being evacuated. The oil acts as a barrier, trapping and absorbing certain particulates, moisture, and chemical vapors, preventing them from reaching the pump mechanism. This helps protect the pump internals from potential damage and contributes to the longevity of the pump.

5. Thermal Stability: The presence of oil in these pumps helps in dissipating heat generated during operation, contributing to their thermal stability. The oil absorbs and carries away heat, preventing excessive temperature rise within the pump. This thermal stability allows for consistent performance even during prolonged operation and helps protect the pump from overheating.

6. Noise Reduction: Oil-sealed vacuum pumps generally operate at lower noise levels compared to other types of vacuum pumps. The oil acts as a noise-damping medium, reducing the noise generated by the moving parts and the interaction of gases within the pump. This makes them suitable for applications where noise reduction is desired, such as laboratory environments or noise-sensitive industrial settings.

7. Versatility: Oil-sealed vacuum pumps are versatile and can handle a wide range of gases and vapors. They can effectively handle both condensable and non-condensable gases, making them suitable for diverse applications in industries such as chemical processing, pharmaceuticals, food processing, and research laboratories.

8. Cost-Effective: Oil-sealed vacuum pumps are often considered cost-effective options for many applications. They generally have a lower initial cost compared to some other types of high-vacuum pumps. Additionally, the maintenance and operating costs are relatively lower, making them an economical choice for industries that require reliable vacuum performance.

9. Simplicity and Ease of Maintenance: Oil-sealed vacuum pumps are relatively simple in design and easy to maintain. Routine maintenance typically involves monitoring oil levels, changing the oil periodically, and inspecting and replacing worn-out parts as necessary. The simplicity of maintenance procedures contributes to the overall cost-effectiveness and ease of operation.

10. Compatibility with Other Equipment: Oil-sealed vacuum pumps are compatible with various process equipment and systems. They can be easily integrated into existing setups or used in conjunction with other vacuum-related equipment, such as vacuum chambers, distillation systems, or industrial process equipment.

These advantages make oil-sealed vacuum pumps a popular choice in many industries where reliable, high-performance vacuum systems are required. However, it’s important to consider specific application requirements and consult with experts to determine the most suitable type of vacuum pump for a particular use case.

vacuum pump

What Is the Role of Vacuum Pumps in Pharmaceutical Manufacturing?

Vacuum pumps play a crucial role in various aspects of pharmaceutical manufacturing. Here’s a detailed explanation:

Vacuum pumps are extensively used in pharmaceutical manufacturing processes to support a range of critical operations. Some of the key roles of vacuum pumps in pharmaceutical manufacturing include:

1. Drying and Evaporation: Vacuum pumps are employed in drying and evaporation processes within the pharmaceutical industry. They facilitate the removal of moisture or solvents from pharmaceutical products or intermediates. Vacuum drying chambers or evaporators utilize vacuum pumps to create low-pressure conditions, which lower the boiling points of liquids, allowing them to evaporate at lower temperatures. By applying vacuum, moisture or solvents can be efficiently removed from substances such as active pharmaceutical ingredients (APIs), granules, powders, or coatings, ensuring the desired product quality and stability.

2. Filtration and Filtrate Recovery: Vacuum pumps are used in filtration processes for the separation of solid-liquid mixtures. Vacuum filtration systems typically employ a filter medium, such as filter paper or membranes, to retain solids while allowing the liquid portion to pass through. By applying vacuum to the filtration apparatus, the liquid is drawn through the filter medium, leaving behind the solids. Vacuum pumps facilitate efficient filtration, speeding up the process and improving product quality. Additionally, vacuum pumps can aid in filtrate recovery by collecting and transferring the filtrate for further processing or reuse.

3. Distillation and Purification: Vacuum pumps are essential in distillation and purification processes within the pharmaceutical industry. Distillation involves the separation of liquid mixtures based on their different boiling points. By creating a vacuum environment, vacuum pumps lower the boiling points of the components, allowing them to vaporize and separate more easily. This enables efficient separation and purification of pharmaceutical compounds, including the removal of impurities or the isolation of specific components. Vacuum pumps are utilized in various distillation setups, such as rotary evaporators or thin film evaporators, to achieve precise control over the distillation conditions.

4. Freeze Drying (Lyophilization): Vacuum pumps are integral to the freeze drying process, also known as lyophilization. Lyophilization is a dehydration technique that involves the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. Vacuum pumps create a low-pressure environment in freeze drying chambers, allowing the frozen product to undergo sublimation. During sublimation, the frozen water or solvent directly transitions from the solid phase to the vapor phase, bypassing the liquid phase. Vacuum pumps facilitate efficient and controlled sublimation, leading to the production of stable, shelf-stable pharmaceutical products with extended shelf life.

5. Tablet and Capsule Manufacturing: Vacuum pumps are utilized in tablet and capsule manufacturing processes. They are involved in the creation of vacuum within tablet presses or capsule filling machines. By applying vacuum, the air is removed from the die cavity or capsule cavity, allowing for the precise filling of powders or granules. Vacuum pumps contribute to the production of uniform and well-formed tablets or capsules by ensuring accurate dosing and minimizing air entrapment, which can affect the final product quality.

6. Sterilization and Decontamination: Vacuum pumps are employed in sterilization and decontamination processes within the pharmaceutical industry. Autoclaves and sterilizers utilize vacuum pumps to create a vacuum environment before introducing steam or chemical sterilants. By removing air or gases from the chamber, vacuum pumps assist in achieving effective sterilization or decontamination by enhancing the penetration and distribution of sterilants. Vacuum pumps also aid in the removal of sterilants and residues after the sterilization process is complete.

It’s important to note that different types of vacuum pumps, such as rotary vane pumps, dry screw pumps, or liquid ring pumps, may be utilized in pharmaceutical manufacturing depending on the specific requirements of the process and the compatibility with pharmaceutical products.

In summary, vacuum pumps play a vital role in various stages of pharmaceutical manufacturing, including drying and evaporation, filtration and filtrate recovery, distillation and purification, freeze drying (lyophilization), tablet and capsule manufacturing, as well as sterilization and decontamination. By enabling efficient and controlled processes, vacuum pumps contribute to the production of high-quality pharmaceutical products, ensuring the desired characteristics, stability, and safety.

vacuum pump

Can Vacuum Pumps Be Used in Food Processing?

Yes, vacuum pumps are widely used in food processing for various applications. Here’s a detailed explanation:

Vacuum pumps play a crucial role in the food processing industry by enabling the creation and maintenance of vacuum or low-pressure environments. They offer several benefits in terms of food preservation, packaging, and processing. Here are some common applications of vacuum pumps in food processing:

1. Vacuum Packaging: Vacuum pumps are extensively used in vacuum packaging processes. Vacuum packaging involves removing air from the packaging container to create a vacuum-sealed environment. This process helps extend the shelf life of food products by inhibiting the growth of spoilage-causing microorganisms and reducing oxidation. Vacuum pumps are used to evacuate the air from the packaging, ensuring a tight seal and maintaining the quality and freshness of the food.

2. Freeze Drying: Vacuum pumps are essential in freeze drying or lyophilization processes used in food processing. Freeze drying involves removing moisture from food products while they are frozen, preserving their texture, flavor, and nutritional content. Vacuum pumps create a low-pressure environment that allows frozen water to directly sublimate from solid to vapor, resulting in the removal of moisture from the food without causing damage or loss of quality.

3. Vacuum Cooling: Vacuum pumps are utilized in vacuum cooling processes for rapid and efficient cooling of food products. Vacuum cooling involves placing the food in a vacuum chamber and reducing the pressure. This lowers the boiling point of water, facilitating the rapid evaporation of moisture and heat from the food, thereby cooling it quickly. Vacuum cooling helps maintain the freshness, texture, and quality of delicate food items such as fruits, vegetables, and bakery products.

4. Vacuum Concentration: Vacuum pumps are employed in vacuum concentration processes in the food industry. Vacuum concentration involves removing excess moisture from liquid food products to increase their solids content. By creating a vacuum, the boiling point of the liquid is reduced, allowing for gentle evaporation of water while preserving the desired flavors, nutrients, and viscosity of the product. Vacuum concentration is commonly used in the production of juices, sauces, and concentrates.

5. Vacuum Mixing and Deaeration: Vacuum pumps are used in mixing and deaeration processes in food processing. In the production of certain food products such as chocolates, confectioneries, and sauces, vacuum mixing is employed to remove air bubbles, achieve homogeneity, and improve product texture. Vacuum pumps aid in the removal of entrapped air and gases, resulting in smooth and uniform food products.

6. Vacuum Filtration: Vacuum pumps are utilized in food processing for vacuum filtration applications. Vacuum filtration involves separating solids from liquids or gases using a filter medium. Vacuum pumps create suction that draws the liquid or gas through the filter, leaving behind the solid particles. Vacuum filtration is commonly used in processes such as clarifying liquids, removing impurities, and separating solids from liquids in the production of beverages, oils, and dairy products.

7. Marinating and Brining: Vacuum pumps are employed in marinating and brining processes in the food industry. By applying a vacuum to the marinating or brining container, the pressure is reduced, allowing the marinade or brine to penetrate the food more efficiently. Vacuum marinating and brining help enhance flavor absorption, reduce marinating time, and improve the overall taste and texture of the food.

8. Controlled Atmosphere Packaging: Vacuum pumps are used in controlled atmosphere packaging (CAP) systems in the food industry. CAP involves modifying the gas composition within food packaging to extend the shelf life and maintain the quality of perishable products. Vacuum pumps aid in the removal of oxygen or other unwanted gases from the package, allowing the introduction of a desired gas mixture that preserves the food’s freshness and inhibits microbial growth.

These are just a few examples of how vacuum pumps are used in food processing. The ability to create and control vacuum or low-pressure environments is a valuable asset in preserving food quality, enhancing shelf life, and facilitating various processing techniques in the food industry.

China Standard Multi Stage Industrial Oil Free Dry Air Vacuum Pump Machine   manufacturer China Standard Multi Stage Industrial Oil Free Dry Air Vacuum Pump Machine   manufacturer
editor by CX 2023-12-11