China Dry Vacuum Pump Manufacturers Suppliers Factory - Customized Dry Vacuum Pump

Your professional dry vacuum pump manufacturer in China

Boke Vacuum has over a decade of experience in the design, manufacturing and application of dry vacuum pumps. Our dry vacuum pumps are widely used in the pharmaceutical and chemical industries. We are committed to delivering top-quality dry vacuum pumps for you！

VDP Dry Screw Vacuum Pump
The VDP Series Explosion Proof Screw Vacuum Pump represents a new generation of dry vacuum pumps, designed to be energy-efficient and environmentally friendly. Its key features include oil-free
ZJP Roots Vacuum Pump
The ZJP series Roots vacuum pump features an oil-free design, high pumping speed, non-internal compression, energy efficiency, and environmental friendliness, along with automatic overload
ZJQ Gas circulation-cooled Roots Pump
The ZJQ gas-circulating roots pump, also known as gas-cooled roots pump, offers several advantages, including oil-free operation, resistance to high differential pressure, high reliability, and easy
NZJQ Multistage Gas circulation-cooled Roots Pump
The NZJQ series multi-stage gas-cooled Roots vacuum pump features advantages such as oil-free operation, high vacuum performance, resistance to high differential pressure, energy efficiency,
NZJP Multistage Roots Vacuum Pump
The NZJP series multi-stage Roots vacuum pump is designed with several rotors arranged in series on a single shaft. This setup mimics the function of multiple Roots pumps connected in sequence. The

What is a dry vacuum pump?

Also known as oil-free vacuum pumps, dry vacuum pumps operate within a pressure range from 10⁵ Pa (atmospheric pressure) down to 10 Pa. They use no oil or liquid inside the pump chamber. A pump whose exhaust port is open to the atmosphere and can discharge gas directly into ambient air is defined as a dry vacuum pump.

What are the advantages of dry vacuum pumps?

Clean vacuum achievable

The core advantage of dry vacuum pumps is that the pumped gas inside the pump chamber is barely contaminated by oil, enabling maximum access to clean vacuum conditions.

Eco-friendly performance

No waste liquid that may cause environmental pollution is generated during the operation of dry vacuum pumps.

Energy efficiency

Unlike liquid ring vacuum pumps, dry vacuum pumps require no energy input to drive working fluid, thus delivering superior energy-saving performance.

High vacuum level

Compared with conventional water ring vacuum pumps, the ultimate vacuum of dry vacuum pumps is not affected by working fluid, with an ultimate vacuum reaching 10⁻¹ Pa.

Why choose dry vacuum pumps from Boke Vacuum?

Backed by a comprehensive product portfolio, sophisticated manufacturing techniques, reliable sealing and anti-corrosion technologies, as well as superior performance and energy-saving merits, Boke dry vacuum pumps are widely adopted across diverse industries with strong overall capabilities. Our core advantages are listed as follows:

01/

Diverse Product Range for Wide Application Scenarios

We offer a full lineup of models, including screw vacuum pumps, Roots vacuum pumps, air-cooled Roots pumps, multi-stage Roots pumps, multi-stage air-cooled Roots pumps and large-scale dry vacuum pumps. We independently develop multi-stage products and large dry Roots pumps to meet differentiated requirements for vacuum degree and pumping speed from various industries and processes. With over a decade of industry experience, our team boasts profound expertise in working condition selection to deliver targeted solutions for all application scenarios.

02/

Precision Manufacturing with Outstanding Quality

All components are produced under strict precision standards. We have invested a total of 48 million RMB and introduced 80 sets of advanced processing and testing equipment from leading global brands, including German DMG 9-axis 5-linkage turn-milling centers, American Hurco machines and German Tiede equipment, alongside CNC lathes, grinders, laser cutters, coordinate measuring machines and spectrometers, to guarantee high machining accuracy of parts. With more than ten years of experience in dry vacuum pump manufacturing, we have established a mature quality control system. Our pump testing center holds a Class 1 precision certificate issued by the National Pump Quality Inspection Center, and our company is accredited as a R&D center for energy-saving eco-friendly dry vacuum pumps, earning authoritative recognition for product quality.

03/

Reliable Sealing to Eliminate Leakage

A combined sealing structure consisting of labyrinth seals, lip seals and nitrogen seals is adopted to ensure an oil-free pump chamber and zero leakage. The lip seals are imported from Italy. Matched with wear-resistant sleeves made of special structural steel or wear-resistant bearings with tungsten carbide coating on stainless steel, the service life of sealing components is greatly extended for stable and safe operation.

04/

Custom Anti-corrosion Design for Harsh Working Conditions

For highly corrosive environments involving hydrochloric acid and other corrosive media, wetted parts can be made of duplex stainless steel or titanium alloy to fundamentally resist corrosion. This series of products has been widely deployed in acid-containing working conditions of pharmaceutical enterprises.

05/

Superior Performance for Continuous Production

Equipped with non-contact self-balancing profile technology, our pumps feature high vacuum degree and excellent thermal stability, ideal for long-term continuous industrial production. Widely applied in pharmaceutical, chemical and other mainstream sectors, they help clients optimize processes such as dealcoholization, dehydration and distillation, and improve product quality and market competitiveness.

06/

Energy-saving & Eco-friendly with Multiple Industry Certifications

Our eco-friendly and energy-saving performance has been widely recognized. The variable-pitch screw vacuum pump has been certified as an Energy Conservation and Carbon Reduction Demonstration Product by the China Electronic Energy Saving Technology Association. Our company is also listed in the first batch of key water-saving enterprises in Shandong Province, demonstrating remarkable strength in green development.

Industry Application Cases

Application in the Pharmaceutical Industry

The picture shows Roots-screw vacuum units designed and manufactured by our company for a major domestic pharmaceutical enterprise. The two units shown are model JZJD300. This type of unit is applicable to processes such as drying, distillation and vacuum filtration in pharmaceutical production. Tailored to the customer's working conditions, the two dry Roots-screw vacuum units are equipped with rear-mounted condensers and solvent recovery systems. Their wetted parts are made of duplex stainless steel to withstand corrosive operating environments.

The picture displays the J3ZJQ-600 multi-stage air-cooled Roots unit designed and fabricated by our company for a domestic pharmaceutical enterprise. It is equipped with our in-house manufactured 3ZJQ-600 multi-stage air-cooled Roots vacuum pump, which features high compression ratio, superior vacuum level and outstanding energy efficiency. This dry vacuum unit is applied to working conditions involving concentrated hydrochloric acid and hydrogen chloride (HCl) gas. In accordance with customer requirements, surface cladding treatment has been performed on the wetted parts of the equipment.

Applications in the Chemical Industry

The image shows the JZJD1200 dry vacuum unit designed and manufactured by our company for a large domestic chemical enterprise. This unit delivers a pumping speed of 4320 m³/h and an ultimate vacuum of 1 Pa.

The picture shows the J2ZJQD1500 dry vacuum unit designed and manufactured for a large chemical enterprise. This unit adopts an air-cooled Roots vacuum pump as the main pump and a screw vacuum pump as the fore pump, to meet the customer's requirements for high pumping speed and high vacuum level.

FAQ

Q: 1. What is the price of your dry vacuum pumps?

A: Dry vacuum pumps are slightly higher in price compared with water ring vacuum pumps.

Q: 2. Do you supply spare parts for dry vacuum pumps?

A: We can provide wearable spare parts according to your working conditions and special requirements. Common wearing parts include bearings, lip seals and others. The specific scope shall be subject to the contract.

Q: 3. What are the advantages of your screw vacuum pumps?

A: Our screw pumps adopt self-balancing and variable-pitch profile design. This design improves pumping efficiency, reduces vibration and noise, and enhances operational stability. Additionally, nitrogen panels are equipped to clean and cool the pump chamber as well as improve sealing performance. Please note that the nitrogen panel is an optional accessory. Furthermore, our screw vacuum pumps are certified to ATEX standards for explosion protection.

Q: 4. Why did my dry vacuum pump break down shortly after use? Are dry pumps not durable?

A: The failure may result from the following reasons:
1. Inappropriate working conditions. Dry vacuum pumps are not suitable for all applications. Liquid ring vacuum pumps are a better choice if the suction medium is flammable and explosive gas.
2. Corrosion of wetted parts. If the wetted parts are not made of proper materials, the suction medium will erode the rotors and pump body.
3. Lack of standard maintenance. Regular and standardized maintenance can extend the service life of the pump. For instance, failure to feed compressed air or inert gas before shutdown will cause medium crystallization inside the pump chamber and affect subsequent operation.

Q: 5. Can dry vacuum pumps be used together with other types of pumps?

A: Dry vacuum pumps can be used standalone or combined with other vacuum pumps to form a vacuum unit. We have Roots-screw dry vacuum units, which deliver clean vacuum and higher pumping speed, as well as Roots-liquid ring vacuum units. Custom vacuum units are also available based on your actual working conditions.

Q: 6. How to select a suitable dry vacuum pump?

A: A properly selected pump will bring great operational convenience. Please provide us with detailed information including required pumping speed, medium composition, local atmospheric pressure, temperature and back pressure conditions. Our professional engineers will recommend the most suitable vacuum pump or unit for you.

Boke Vacuum Honors (Partial List)

Share your working conditions with us, and we will help you select the ideal dry vacuum pump unit.

As one of the most professional dry vacuum pump manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized dry vacuum pump made in China here from our factory.

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