ODM PM VFD Dry Oil-Free Screw Vacuum Pump for Industrial Clean Vacuum Manufacturer, Suppliers
Product Description
Intelligent, Clean, and High-Efficiency Vacuum Solutions
The PM VFD Series represents the next generation of oil-free rotary vane vacuum pumps, engineered for industries that demand 100% oil-free air, variable frequency drive (VFD) energy savings, and reliable continuous operation. With its permanent magnet synchronous motor and integrated VFD control, this series delivers precise vacuum pressure regulation while reducing energy consumption by up to 30% compared to standard fixed-speed pumps.
100% Oil-Free Operation
Class 0 certified oil-free compression ensures zero contamination, making it ideal for pharmaceutical, food packaging, medical, and semiconductor applications.
Integrated VFD (PM Motor)
The built-in permanent magnet motor and frequency converter enable soft start, stepless flow adjustment, and automatic pressure stabilization, extending pump life and lowering noise levels.
High Efficiency at Any Load
Maintains high pumping speed across a wide pressure range, with intelligent load-following control that matches energy input to actual demand.
Compact & Modular Design
Space-saving footprint with flexible installation options; multiple frame sizes available to fit your system layout.
Low Maintenance
No oil changes, no exhaust oil mist, and reduced wear parts result in significantly lower operating costs.
Quiet & Clean Operation
Low vibration and noise levels improve workplace environment and safety.
| Model | Motor Power (kW) | Flow (m³/min) | Flow (m³/h) | Ultimate Vacuum mbar (a) | Inlet Size | Outlet Size | Dimensions (mm) |
|---|---|---|---|---|---|---|---|
| VPO‑5.5PM | 5.5 | 6.4 | 384 | 0.35 | DN80 | DN65 | 120x890x1000 |
| VPO‑7.5PM | 7.5 | 9.2 | 552 | 0.35 | DN80 | DN65 | - |
| VPO‑11PM | 11 | 11.5 | 690 | 0.35 | DN80 | DN65 | 1850x920x1420 |
| VPO‑15PM | 15 | 14.6 | 876 | 0.35 | DN80 | DN65 | - |
| VPO‑18.5PM | 18.5 | 17.7 | 1062 | 0.35 | DN150 | DN100 | 2000x1000x1600 |
| VPO‑22PM | 22 | 22 | 1320 | 0.35 | DN150 | DN100 | - |
| VPO‑30PM | 30 | 27 | 1620 | 0.35 | DN150 | DN100 | 2300x1120x1765 |
| VPO‑37PM | 37 | 30.2 | 1812 | 0.35 | DN150 | DN100 | - |
| VPO‑45PM | 45 | 44 | 2640 | 0.35 | DN200 | DN150 | 2860x1650x2050 |
| VPO‑55PM | 55 | 53 | 3180 | 0.35 | DN200 | DN150 | - |
| VPO‑75PM | 75 | 75 | 4500 | 0.35 | DN250 | DN200 | 3300x2250x2200 |
| VPO‑90PM | 90 | 90 | 5400 | 0.35 | DN250 | DN200 | - |
The PM VFD Series uses dry rotary vane technology with no oil in the compression chamber. This means the discharged air contains zero oil contaminants, making it suitable for sensitive processes like food, medical, and electronics manufacturing. It also eliminates the cost and hassle of oil changes and oil disposal.
The integrated VFD allows the motor speed to adjust automatically based on actual vacuum demand. This provides three main benefits:
- Energy savings – up to 30% lower power consumption compared to fixed-speed pumps
- Precise pressure control – maintains stable vacuum without overshooting
- Softer start/stop – reduces mechanical stress and extends pump service life
All models in the PM VFD Series achieve an ultimate vacuum of 0.35 mbar (absolute), which is consistent across the entire power range from 5.5 kW to 90 kW.
Selection depends on your required pumping speed (flow) and operating vacuum level. Use the flow rates in the technical table (m³/min or m³/h) as a guide. For continuous operation, we recommend selecting a model with 15–20% higher flow than your minimum requirement to accommodate system leaks and future expansion. Contact our engineering team for a customized sizing recommendation.
Maintenance is minimal due to the oil-free design. Recommended routine tasks include:
- Inspecting and cleaning the inlet filter (every 1,000–2,000 hours)
- Checking vane wear and replacing as needed (typically after 8,000+ hours)
- Periodic inspection of seals and bearings No oil changes, oil filters, or oil mist separators are required.
