Stator and Rotor for Electric Vacuum Pumps
FRING manufactures matched stator and rotor sets for electric vacuum pumps used in brake boosters and EGR systems. The powder metallurgy process provides oil-impregnated porosity for self-lubrication, reducing friction and wear while maintaining volumetric efficiency over millions of cycles.

Main Datasheet
Applicable Specifications
Stringent Standards, Precision Specifications, Ultimate Reliability
Design & Quality Standards
ISO 9001, IATF 16949, SAE J2450
Standard Material Grades
MPIF: FC-0205, FC-0208
Typical Material Properties (Sintered Fe-Cu-C)
Density 6.5 – 6.8 g/cm³ Hardness 65 – 75 HRB Oil Content ≥15% by volume
Net-Shape Dimensional Tolerances
Diameter: ±0.02 mm Vane Slot Width: ±0.01 mm Concentricity: ≤0.03 mm
Performance Verification
Volumetric Efficiency ≥95% | Cycle Life ≥5,000 hours
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MOQ: 500–2000 pcs (Negotiable depending on part design and volume)
Lead Time: 2–3 weeks for standard parts, 3–5 weeks for custom parts
OEM/ODM: Available
Engineering Support: Yes (Drawing review + Material selection + Magnetic/Mechanical parameter optimization)
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