Product Overview
The ORION KRF40A is a dry rotary vane vacuum pump engineered by ORION for demanding industrial vacuum service. Operating on the rotary vane principle, the KRF40A uses a set of precision-machined sliding vanes rotating within an eccentrically mounted cam ring to create a sealed, continuously swept pumping chamber. As the rotor turns, centrifugal force extends the vanes against the cam ring, drawing gas from the inlet port, compressing it, and discharging it through the exhaust port. Because the KRF40A is a dry (oil-free) design, the pumping chamber operates without sealing fluid, eliminating oil contamination of the process stream and reducing routine maintenance to vane and filter inspection. This makes the KRF40A a clean, reliable vacuum source for industrial systems requiring stable vacuum levels, low noise, and continuous-duty operation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Dry Rotary Vane Vacuum Pump |
| Model Designation | KRF40A |
| Manufacturer | ORION |
| Pumping Principle | Rotary vane, oil-free (dry) compression |
| Operating Pressure | Standard Industrial Grade (vacuum service, up to rated vacuum level) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
| Lubrication | Oil-free pumping chamber (dry running) |
| Duty Rating | Continuous industrial duty |
Engineering Features & Advantages
- Precision Performance: Precision-ground sliding vanes and a machined cam ring maintain tight clearances for stable vacuum generation and consistent flow with minimal pulsation.
- Oil-Free Operation: The dry rotary vane design eliminates sealing oil from the pumping chamber, preventing process contamination and reducing consumable and disposal costs.
- Low Noise & Vibration: Balanced rotor and vane geometry deliver smooth, quiet operation suitable for installation in work cells and enclosed machinery.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with wear-resistant vanes and durable casing construction.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original ORION KRF40A mounting and port standards.
Typical Industrial Applications
The ORION KRF40A dry rotary vane vacuum pump is suited to a wide range of heavy industrial duties, including plastic injection molding and thermoforming (part handling and degassing), CNC machine tools and pick-and-place automation, packaging and printing lines requiring clean vacuum, and general industrial vacuum systems for filtration, drying, and material conveying where oil-free operation is essential.
PRODUCT IMAGES

ORION KRF40A Dry Rotary Vane Vacuum Pump
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
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