Choosing a China dry vacuum pump factory begins with the meaning of dry vacuum in your process. Dry screw, claw and scroll designs use different mechanisms and serve different pressure and flow requirements. An oil-free pumping chamber can be valuable, but it does not remove the need to review the medium, temperature, solids and maintenance conditions.
The ten companies below were selected from the supplied directory for their published dry pump or related process vacuum offerings. VPS and drypump.com.cn identify the same group and are counted once. The order is a practical shortlist rather than a production-volume ranking, and the depth of model information varies between suppliers.
Quick takeaway: DV Vacuum is a useful first contact for a customized dry screw package. Compare its proposal with dedicated dry process suppliers such as Boke, VPS and ReM. For smaller or different pressure duties, review the exact dry technologies offered by Mibay, InPowerVac, Yitaer and GOFLEX.
- DV Vacuum
- Shandong Boke Vacuum Technology Co., Ltd.
- VPS / Weipengsheng Group
- Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.)
- InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.)
- Yitaer Vacuum Technology (Dongguan) Co., Ltd.
- ReM Vacuum Technology (Shanghai)
- FORYOU VACUUM
- GOFLEX
- NuoXuTech
Top 10 Dry Vacuum Pump Factories in China: Quick Comparison
| Company | Published Product Focus | Best-Fit Starting Point |
|---|---|---|
| DV Vacuum | Constant-pitch and variable-pitch dry screw pumps; Roots-dry screw systems | Industrial process duties requiring a dry pump and a configured vacuum package |
| Shandong Boke Vacuum Technology Co., Ltd. | VDP variable-pitch dry screw pumps; Roots and liquid ring technologies | Chemical and pharmaceutical projects comparing dry screw process equipment |
| VPS / Weipengsheng Group | VPS and HC dry screw pumps; screw-Roots pump units | Industrial buyers reviewing dedicated dry screw manufacturing and integrated units |
| Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.) | TXLG and TXLGB dry screw series; Roots boosters and dry vacuum equipment | Buyers comparing identifiable dry screw models and backing combinations |
| InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.) | Air-cooled dry screw pumps, oil-free screw pumps, Roots pumps and vacuum units | Equipment installations comparing dry pumping and cooling configurations |
| Yitaer Vacuum Technology (Dongguan) Co., Ltd. | Dry screw, oil-free claw, oil-free vortex and other vacuum technologies | Buyers deciding between process dry pumps and compact oil-free alternatives |
| ReM Vacuum Technology (Shanghai) | RMV and RMD dry screw pumps; modular vacuum units and control solutions | Projects combining a process pump with modular system engineering |
| FORYOU VACUUM | SV oil-free dry screw series; Roots and liquid ring equipment | Buyers comparing dry screw options within an industrial system portfolio |
| GOFLEX | Dry screw and claw pumps; Roots boosters and OEM/ODM options | OEM and industrial buyers comparing dry technology configurations |
| NuoXuTech | Dry vacuum and dry screw product positioning; liquid ring and Roots solutions | An additional sourcing inquiry needing detailed dry pump documentation |
1. DV Vacuum
Website: https://www.dvvacuum.com/
Core Technologies: Constant-pitch and variable-pitch dry screw pumps; Roots-dry screw systems
Best Fit: Industrial process duties requiring a dry pump and a configured vacuum package
Company Overview: DV Vacuum publishes dry screw pumps and customized Roots-dry screw systems for industrial processes. Its materials describe engineering around gas medium, pressure, pumping speed and cooling conditions. Its own DVS dry screw series is identified among the internally manufactured core products, supporting a factory discussion about pump and system scope.
Buying Tips: Provide the complete process gas profile and request a model-specific proposal. Compare rotor design, coating, seals, purge, cooling and condensate management. Ask for package performance at the process inlet and a written maintenance plan.
2. Shandong Boke Vacuum Technology Co., Ltd.
Website: https://www.bokevac.com/
Core Technologies: VDP variable-pitch dry screw pumps; Roots and liquid ring technologies
Best Fit: Chemical and pharmaceutical projects comparing dry screw process equipment
Company Overview: Boke publishes the VDP variable-pitch dry screw series alongside Roots and liquid ring equipment. Its supplied company profile describes design and production resources in Zibo and a broader vacuum acquisition portfolio. The dry screw product family gives buyers a specific starting point for an industrial factory quotation.
Buying Tips: Ask how the VDP configuration addresses your vapor load, temperature and corrosion conditions. Request cooling and purge requirements, permitted operating range and cleaning procedures for the exact model.
3. VPS / Weipengsheng Group
Website: https://www.vps-vacuumpump.com/
Core Technologies: VPS and HC dry screw pumps; screw-Roots pump units
Best Fit: Industrial buyers reviewing dedicated dry screw manufacturing and integrated units
Company Overview: VPS describes development and production of dry screw pumps and vacuum units under the VPS and HC brands. The supplied drypump.com.cn and vps-vacuumpump.com profiles refer to the same group and are counted once. Published materials discuss rotor coatings, sealing and machining resources for process vacuum equipment.
Buying Tips: Establish the quoted brand, model and production entity. Compare the coating and sealing package against the actual medium, and obtain utility consumption and operating limits for the complete screw-Roots unit if a booster is included.
4. Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.)
Website: https://www.mbvacuum.com/
Core Technologies: TXLG and TXLGB dry screw series; Roots boosters and dry vacuum equipment
Best Fit: Buyers comparing identifiable dry screw models and backing combinations
Company Overview: Mibay presents TXLG and TXLGB dry screw pumps among its own manufactured ranges. It also lists Roots boosters, scroll equipment and vacuum system accessories. Its distinction between internal production and other-brand catalog entries is useful when qualifying a factory offer.
Buying Tips: Ask for Mibay model data and test conditions rather than another-brand reference alone. Define pressure, gas load, cooling, inlet protection and booster requirements, then compare the proposal with the same process duty used for other suppliers.
5. InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.)
Website: https://www.inpowervacuum.com/
Core Technologies: Air-cooled dry screw pumps, oil-free screw pumps, Roots pumps and vacuum units
Best Fit: Equipment installations comparing dry pumping and cooling configurations
Company Overview: InPowerVac publishes air-cooled dry screw and oil-free screw product categories together with Roots pumps and vacuum units. Its company profile describes vacuum equipment development and manufacturing. These options are relevant when installation utilities and enclosure layout influence the dry pump selection.
Buying Tips: Confirm the cooling method of the exact proposed model and the permitted ambient conditions. Review noise, ventilation, gas temperature and exhaust requirements. For a packaged unit, ask who supplies controls and verifies system performance.
6. Yitaer Vacuum Technology (Dongguan) Co., Ltd.
Website: https://www.yitaervacuum.net/
Core Technologies: Dry screw, oil-free claw, oil-free vortex and other vacuum technologies
Best Fit: Buyers deciding between process dry pumps and compact oil-free alternatives
Company Overview: Yitaer lists dry screw pumps alongside oil-free claw and vortex product categories. Its supplied information describes manufacturing resources and vacuum solution customization. The technology range is useful for comparing applications that need an oil-free pumping chamber but differ in pressure, flow and duty.
Buying Tips: State whether the priority is clean vacuum, industrial vapor handling or high-flow suction. Request a recommendation with model-specific limits, service intervals and utilities, and confirm what the supplier means by oil-free for the proposed construction.
7. ReM Vacuum Technology (Shanghai)
Website: https://en.remvac.com/
Core Technologies: RMV and RMD dry screw pumps; modular vacuum units and control solutions
Best Fit: Projects combining a process pump with modular system engineering
Company Overview: ReM lists variable-pitch dry screw pump series and modular vacuum units in its supplied materials. It also describes process consulting, electronic control solutions and system accessories. These published categories support a discussion of dry process vacuum packages and the equipment boundary between supplier and plant.
Buying Tips: Request a duty-point schedule, package drawing and control description. Confirm how vapor, solids and condensate are managed for your particular process, together with commissioning responsibilities and the maintenance approach.
8. FORYOU VACUUM
Website: https://www.foryouvacuum.com/
Core Technologies: SV oil-free dry screw series; Roots and liquid ring equipment
Best Fit: Buyers comparing dry screw options within an industrial system portfolio
Company Overview: FORYOU publishes an SV dry screw series alongside water ring and Roots equipment. Its supplied homepage positions the dry screw range for clean vacuum applications and presents customized vacuum solutions. Buyers should use the named series as an inquiry starting point and verify the specification for the actual process.
Buying Tips: Obtain a current SV model datasheet and performance curve. Ask which protections and utility components are included, how the offered configuration handles the medium, and where the proposed pump is assembled and tested.
9. GOFLEX
Website: https://goflexpump.com/
Core Technologies: Dry screw and claw pumps; Roots boosters and OEM/ODM options
Best Fit: OEM and industrial buyers comparing dry technology configurations
Company Overview: GOFLEX publishes dry screw and claw ranges as part of its vacuum pump portfolio. Its company information describes machining, assembly and testing together with OEM adaptations. The range gives equipment builders options across different pressure and flow duties, with selection dependent on the process conditions.
Buying Tips: Compare dry screw and claw suitability using the working pressure and gas profile. Agree on a sample or acceptance test, mounting requirements, cooling, seals and service parts before extending a configuration to production supply.
10. NuoXuTech
Website: https://www.nuoxutech.com/
Core Technologies: Dry vacuum and dry screw product positioning; liquid ring and Roots solutions
Best Fit: An additional sourcing inquiry needing detailed dry pump documentation
Company Overview: NuoXuTech presents dry vacuum equipment in its supplied homepage information and lists broader industrial vacuum solutions. The available materials provide less dry model detail than several other entries. Its role in this shortlist is a technical inquiry route, with factory and product qualification depending on the documentation returned.
Buying Tips: Request the dry pump series, rotor technology, model performance and legal manufacturer. Confirm manufacturing scope and process limits, and compare its technical offer with the more detailed model information available from other candidates.
Dry Vacuum Technologies: Match the Mechanism to the Process
| Option | Application Starting Point | Key Questions |
|---|---|---|
| Dry screw | Industrial process evacuation and compatible vapor-handling duties | Rotor design, thermal control, seals, purge and permitted contaminants |
| Dry claw | Industrial suction and suitable continuous-duty applications | Working pressure range, gas conditions and service intervals |
| Dry scroll | Laboratory, analytical and compatible clean vacuum duties | Model capacity, tip-seal maintenance and process limits |
| Roots with dry backing | Packages requiring a booster and dry backing pump | System duty, start sequence, pressure limits and package controls |
How to Choose a China Dry Vacuum Pump Factory
1. Supply a Complete Process Profile
Give the factory the required pressure, gas load, temperature, vapor composition, solids and expected operating hours. Include batch stages and cleaning operations. A pump selected from clean-air data alone may need a different configuration when exposed to your actual process.
2. Compare Utilities and Thermal Control
Ask whether the model needs cooling water, ventilation, purge gas or other utilities. Review startup and shutdown procedures and how the pump responds to changes in gas load. Confirm the installation environment and utility availability before accepting a proposed cooling arrangement.
3. Define Materials and Process Protection
Discuss rotor and housing materials, coatings, seals, inlet separation and any required flushing or cleaning. A coating name alone does not demonstrate compatibility with every chemical. Request a written application review for the particular medium and the expected operating conditions.
4. Evaluate the Full Package
If the duty needs a Roots booster, receiver, separator or control system, request a complete package drawing and performance basis. Establish responsibility for instruments, valves, electrical controls, exhaust routing and commissioning. Compare performance where vacuum is required in the process, accounting for connecting pipework.
5. Review Maintenance and Factory Evidence
Ask who manufactures the offered pump and request model-specific testing and service information. Compare planned maintenance, wear parts, cleaning frequency and repair support. For critical processes, define the availability of standby capacity and spare components as part of the purchasing scope.
What Affects the Cost of a Dry Vacuum Pump System?
Dry technology changes the balance between purchase price, utility demand and process maintenance. A useful quotation identifies the full configuration and the assumptions behind expected operating cost.
- Pumping technology and duty – Screw, claw or scroll selection, capacity and booster stages affect equipment cost.
- Process materials – Coatings, seals and corrosion-resistant components depend on the actual medium.
- Utilities – Cooling equipment, purge arrangements and ventilation influence installed cost and operating demand.
- Protection and controls – Inlet separation, temperature monitoring, valves and sequencing need an agreed scope.
- Service requirements – Cleaning, wear parts, repair lead time and standby arrangements affect long-term availability.
Compare the same operating duty and utility assumptions across bids. Request the pump curve, package drawing and planned maintenance schedule before using a price difference to choose a supplier.
FAQs – China Dry Vacuum Pump Factories
Q1: Does a dry pump contain no oil anywhere?
Dry normally refers to the absence of a sealing or lubricating fluid in the pumping chamber. Some designs still use lubricant in bearings or gear sections. Ask the manufacturer to identify all lubrication points and their separation from the process gas.
Q2: Is dry screw always better than oil-sealed rotary vane?
The choice depends on pressure, gas chemistry, vapor, capacity and operating cost. A suitable oil-sealed pump can serve many duties effectively. A dry screw configuration may be preferred where its process characteristics and maintenance approach suit the application.
Q3: Can a dry pump handle wet or corrosive gas?
Some configured models can serve such duties, but suitability must be reviewed for the exact process. Supply vapor quantity, temperature, chemistry and solids information, then obtain the required protection, materials and operating procedures from the manufacturer.
Q4: Are drypump.com.cn and VPS separate manufacturers?
The supplied profiles identify both websites with the Weipengsheng/VPS group. They are counted as one entry here. Confirm the legal contracting and manufacturing entity for the specific quotation.
Q5: How should I compare energy use?
Ask for power and utility demand at the agreed operating duty and load profile. Include cooling and purge requirements where applicable. Do not compare nominal motor ratings as though they represent measured energy consumption throughout the process.
Q6: What should a factory test cover?
Agree on the relevant pressure, pumping performance and operating conditions, together with the instruments and acceptance criteria. A clean-gas factory test may need to be complemented by an application review or a process trial when the medium creates additional risks or uncertainty.
Q7: Is DV Vacuum suitable for a dry vacuum project?
DV Vacuum publishes DVS dry screw pumps and customized dry screw and Roots-dry screw systems. It is a relevant candidate for a technical proposal when the process data, package boundary and required utilities are clearly defined.
Which China Dry Vacuum Pump Factory Should You Contact?
For a customized industrial dry package, include DV Vacuum, Boke, VPS and ReM in an initial engineering comparison. Use the broader ranges from Mibay, InPowerVac, Yitaer and GOFLEX to explore other dry technologies or equipment integration options. Request further model detail from candidates whose collected profiles are less specific.
The best proposal explains why the pump suits the medium, how it operates through the full process cycle and what the owner must provide for utilities and maintenance. Use that evidence to narrow the shortlist before ordering.