Are you looking for oil sealed vacuum pump manufacturers for reliable low and medium vacuum generation? Do you need to compare rotary vane, piston, and backing pump options for production, laboratory, or process equipment? Or are you replacing an imported oil sealed vacuum pump and want a technically comparable solution?
The global oil sealed vacuum pump market includes established industrial pump manufacturers, scientific vacuum technology companies, and suppliers serving production, laboratory, OEM, and high-vacuum applications. Below, we compare 10 manufacturers and suppliers by pump technology, application fit, system capability, and purchasing requirements.
All Contact Us buttons on this page connect you with DV VACUUM, not the other manufacturers or suppliers listed.
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- Busch Vacuum Solutions
- Leybold
- DV VACUUM
- Becker Pumps
- Agilent
- ULVAC
- Osaka Vacuum
- Edwards Vacuum
- Pfeiffer Vacuum
- Welch Vacuum
1. Busch Vacuum Solutions
Website: https://www.buschvacuum.com/
Headquarters / Supply Model: Global vacuum pump manufacturer.
Core Products / Technologies: Oil-lubricated rotary vane vacuum pumps, dry pumps, blowers, compressors, and vacuum systems.
Why Consider Busch Vacuum Solutions: Busch is a major oil-sealed rotary vane reference through its R5 oil-lubricated rotary vane vacuum pump platform. The range is widely used in industrial applications where reliable continuous vacuum generation and established service support are important.
Best Suited For: Packaging, food, plastics, chemical, medical, and general industrial users.
Before Purchasing: Confirm oil type, mist filtration, pumping speed, ultimate pressure, duty cycle, service interval, inlet protection, and local spare-parts support.
2. Leybold
Website: https://www.leybold.com/
Headquarters / Supply Model: Global vacuum technology manufacturer.
Core Products / Technologies: SOGEVAC single-stage oil-sealed rotary vane pumps, TRIVAC two-stage rotary vane pumps, dry pumps, Roots boosters, high-vacuum pumps, systems, and vacuum components.
Why Consider Leybold: Leybold is relevant for buyers requiring oil-sealed vacuum pumps for both industrial rough-vacuum service and deeper fore-vacuum applications. Its SOGEVAC range focuses on robust single-stage operation, while TRIVAC two-stage pumps can also serve as backing pumps for high-vacuum equipment.
Best Suited For: Industrial production, laboratories, coating systems, research facilities, OEM equipment, and high-vacuum systems requiring an oil-sealed backing pump.
Before Purchasing: Confirm whether a single-stage or two-stage pump is required, pumping speed, target pressure, gas ballast requirements, oil backstreaming control, inlet protection, exhaust filtration, accessories, and service support.
3. DV VACUUM
Website: https://www.dvvacuum.com/
Headquarters / Supply Model: China industrial vacuum pump manufacturer and customized system supplier.
Core Products / Technologies: Oil rotary vane vacuum pumps, Roots vacuum pumps, dry screw vacuum pumps, liquid ring vacuum pumps, and customized vacuum systems.
Why Consider DV VACUUM: DV VACUUM is especially useful when an oil sealed pump is only one part of the selection question. Its product portfolio allows buyers to compare oil rotary vane pumps with dry screw, liquid ring, and Roots-backed configurations where process conditions may require a different vacuum technology or an integrated system.
Best Suited For: Chemical, pharmaceutical, food processing, electronics, new energy, EPC, OEM, and industrial buyers comparing standalone oil rotary vane pumps with wider process vacuum solutions.
Before Purchasing: Confirm whether oil sealed operation is acceptable for the gas stream. Share the gas composition, condensable load, required pumping speed, operating pressure, target ultimate pressure, temperature, voltage/frequency, installation space, and whether the pump will operate independently or as a backing pump.
4. Becker Pumps
Website: https://beckerpumps.com/
Headquarters / Supply Model: Vacuum and pressure pump manufacturer.
Core Products / Technologies: Oil-lubricated rotary vane pumps, dry rotary vane pumps, pressure pumps, blowers, and centralized vacuum systems.
Why Consider Becker Pumps: Becker is relevant for buyers who want to compare oil-lubricated and dry-running rotary vane technologies for OEM machinery and industrial installations. Its portfolio is especially useful where vacuum or combined vacuum-pressure operation must be integrated into production equipment.
Best Suited For: OEMs, packaging equipment, CNC equipment, medical systems, printing, woodworking, material handling, and factories comparing oil-lubricated versus dry-running vane technology.
Before Purchasing: Confirm lubrication preference, pumping speed, required vacuum level, maintenance schedule, noise level, duty cycle, vacuum or pressure operating mode, filtration, and spare-parts availability.
5. Agilent
Website: https://www.agilent.com/
Headquarters / Supply Model: Scientific and industrial vacuum technology manufacturer.
Core Products / Technologies: Rotary vane vacuum pumps, dry pumps, turbomolecular pumps, leak detection equipment, controllers, and vacuum accessories.
Why Consider Agilent: Agilent is particularly relevant when an oil sealed rotary vane pump is used as a backing or roughing pump for analytical instruments, laboratory equipment, leak detection, or high-vacuum systems.
Best Suited For: Laboratories, research users, analytical instrument builders, universities, high-vacuum systems, and scientific equipment buyers.
Before Purchasing: Confirm the required backing-pump role, pumping speed, ultimate pressure, oil-sealed compatibility, contamination-control requirements, inlet traps, exhaust accessories, service kits, voltage, and compatibility with the wider instrument or vacuum system.
6. ULVAC
Website: https://www.ulvac.com/
Headquarters / Supply Model: Global vacuum equipment manufacturer.
Core Products / Technologies: Oil rotary vacuum pumps, dry vacuum pumps, mechanical boosters, high-vacuum pumps, components, and vacuum systems.
Why Consider ULVAC: ULVAC is useful for buyers comparing compact and industrial oil rotary vacuum pumps within a wider vacuum equipment portfolio. Its oil rotary product range covers laboratory, analytical, production, and industrial applications, allowing buyers to select among different pumping capacities and system roles.
Best Suited For: Electronics, semiconductor equipment, coating, laboratories, research, industrial production, analytical equipment, and OEM vacuum systems.
Before Purchasing: Confirm the exact pump series, regional model availability, voltage, pumping speed, ultimate pressure, oil requirements, gas compatibility, duty cycle, maintenance needs, and service support.
7. Osaka Vacuum
Website: https://www.osakavacuum.co.jp/
Headquarters / Supply Model: Vacuum pump manufacturer.
Core Products / Technologies: Oil-sealed rotary vacuum pumps, dry pumps, Roots pumps, turbomolecular pumps, and vacuum systems.
Why Consider Osaka Vacuum: Osaka Vacuum fits buyers who need an oil-sealed backing or roughing pump together with access to higher-vacuum technologies and system-level equipment. This can be useful where the oil-sealed pump is one stage within a wider vacuum installation.
Best Suited For: Industrial vacuum, coating, research, semiconductor, technical vacuum equipment, and high-vacuum system buyers.
Before Purchasing: Confirm the exact oil-sealed pump series, pumping speed, target pressure, backing-pump use, accessories, inlet and exhaust configuration, documentation, voltage, and regional service support.
8. Edwards Vacuum
Website: https://www.edwardsvacuum.com/
Headquarters / Supply Model: Global vacuum technology manufacturer serving industrial, scientific, semiconductor, laboratory, and high-vacuum applications.
Core Products / Technologies: E2M, E2S, and RV oil-sealed rotary vane vacuum pumps, dry vacuum pumps, mechanical boosters, high-vacuum pumps, and vacuum systems.
Why Consider Edwards Vacuum: Edwards is a direct fit for oil sealed vacuum pump buyers through its established mechanical oil-sealed rotary vane portfolio. Its E2M pumps are designed for reliable long-term operation and are available across a broad range of pumping capacities, while smaller rotary vane pumps are widely used in laboratory and high-vacuum backing applications.
Best Suited For: Laboratories, research, analytical equipment, industrial processes, coating systems, high-vacuum systems, OEM equipment, and users requiring a proven backing pump platform.
Before Purchasing: Confirm the exact E2M, E2S, RV, or other series, required pumping speed, ultimate pressure, motor configuration, oil selection, gas ballast requirements, condensable-vapor exposure, exhaust filtration, duty cycle, and whether ATEX or other hazardous-area requirements apply to the exact model.
9. Pfeiffer Vacuum
Website: https://www.pfeiffer-vacuum.com/
Headquarters / Supply Model: Global vacuum technology manufacturer supplying fore-vacuum, high-vacuum, measurement, leak detection, and complete vacuum solutions.
Core Products / Technologies: DuoLine two-stage oil-sealed rotary vane vacuum pumps, backing pumps, Roots pumps, dry pumps, turbomolecular pumps, valves, gauges, and vacuum systems.
Why Consider Pfeiffer Vacuum: Pfeiffer Vacuum is relevant for buyers requiring a two-stage oil-sealed rotary vane pump for low and medium vacuum service. The DuoLine platform includes standard versions as well as magnetic-coupled and corrosion-oriented configurations for applications with different sealing, maintenance, and process requirements.
Best Suited For: Laboratories, research, coating, analytical systems, industrial vacuum, semiconductor equipment, high-vacuum installations, and applications requiring an oil-sealed backing pump.
Before Purchasing: Confirm the required DuoLine model, pumping speed, ultimate pressure, standard or magnetic-coupled configuration, operating fluid, gas ballast requirements, corrosive-process compatibility, exhaust filtration, inlet protection, and integration with the downstream high-vacuum equipment.
10. Welch Vacuum
Website: https://www.welchvacuum.com/
Headquarters / Supply Model: Vacuum pump manufacturer and solution supplier serving laboratory, life science, OEM, and industrial applications.
Core Products / Technologies: CRVpro, DUOSEAL, and CHEMSTAR two-stage oil-sealed rotary vane vacuum pumps, diaphragm pumps, piston pumps, scroll pumps, vacuum gauges, systems, and accessories.
Why Consider Welch Vacuum: Welch provides several oil-sealed rotary vane product families for different purchasing needs. CRVpro pumps cover laboratory and industrial applications, while DUOSEAL and CHEMSTAR products offer additional options for industrial and process-related vacuum requirements. The portfolio also includes accessories such as oil mist filters, traps, and vacuum pump oils.
Best Suited For: Laboratories, analytical equipment, universities, industrial production, OEM systems, chemical laboratory applications, and users requiring compact to medium-capacity two-stage oil-sealed rotary vane pumps.
Before Purchasing: Confirm the required pump family, pumping speed, ultimate pressure, process gas and vapor composition, condensable-vapor exposure, oil type, gas ballast use, inlet trap requirements, oil mist filtration, maintenance schedule, and whether the pump will be used independently or as a fore-vacuum pump.
Key Factors That Affect Your Price
Final pricing depends on pump type, pumping speed, target pressure, single-stage or two-stage design, oil type, duty cycle, gas composition, vapor load, motor standard, inlet and exhaust accessories, oil mist filtration, documentation, testing, packaging, freight, and whether the pump is supplied independently or as part of a complete vacuum system.
For applications involving condensable vapors, corrosive gases, solvents, or hazardous areas, confirm the exact model, operating fluid, gas ballast capability, sealing arrangement, materials, inlet protection, exhaust treatment, and certification scope before ordering.
FAQs – Oil Sealed Vacuum Pump Manufacturers & Suppliers in the World
1. What should I send with my RFQ?
Send the required pumping speed, normal operating pressure, target ultimate pressure, gas or vapor composition, condensable load, operating temperature, duty cycle, inlet connection, voltage/frequency, installation environment, and whether the pump will operate independently or as a backing pump.
2. How do I compare oil sealed vacuum pump manufacturers fairly?
Compare pumping speed at the actual operating pressure, ultimate pressure, single-stage or two-stage configuration, oil type, gas ballast capability, vapor tolerance, oil mist control, maintenance requirements, performance curves, spare parts, warranty, service support, and suitability for the actual process.
3. Can DV VACUUM propose an alternative to an imported oil sealed vacuum pump?
Yes, DV VACUUM can review replacement requirements. Buyers should provide the existing pump model, pumping speed, operating pressure, target pressure, motor information, inlet and outlet dimensions, installation space, gas conditions, and current system configuration.
4. When should I consider a dry vacuum pump instead?
A dry vacuum pump may be worth evaluating when oil contamination must be minimized, when process gases or solvents make oil management difficult, or when the application requires a different process-vacuum configuration. The correct choice depends on gas composition, vapor load, corrosion risk, required pressure, maintenance expectations, and total operating cost.
5. What technical details should be confirmed before ordering?
Confirm pumping speed, ultimate pressure, stage configuration, oil type, gas ballast, vapor handling, inlet and exhaust connections, oil mist filtration, motor specification, voltage/frequency, continuous-duty requirements, spare parts, maintenance intervals, and compatibility with the actual gas or vapor.
How to Choose the Right Oil Sealed Vacuum Pump Supplier
The right supplier depends on required pumping speed, operating pressure, ultimate vacuum, gas and vapor conditions, contamination requirements, duty cycle, maintenance expectations, service support, and whether the oil sealed pump will operate independently or as part of a larger vacuum system.
For buyers evaluating oil rotary vane vacuum pumps together with Roots vacuum pumps, dry screw vacuum pumps, liquid ring vacuum pumps, or customized vacuum systems, DV VACUUM can review the operating requirements and discuss a suitable pump or system configuration.
When contacting DV VACUUM, provide the required pumping speed, operating pressure, target ultimate pressure, gas or vapor composition, condensable load, operating temperature, duty cycle, voltage/frequency, inlet connection, installation space, backing pump requirements, and whether the project requires a standalone pump or complete vacuum system.
