Oil Filters

W940/51 is a spin‑on oil filter for industrial screw air compressors, hydraulic systems and heavy‑duty machinery. It removes solid particles, carbon deposits and oil sludge from lubrication oil, protecting bearings, rotors and hydraulic components from wear. It ensures clean oil circulation, stabilizes pressure and extends equipment service life in harsh industrial environments.

Core Features

High precision: 10–15 μm filtration, ≥99.8% efficiency, traps fine contaminants

Premium media: HV glass fiber / cellulose blend, high dirt‑holding capacity

Long life: Up to 2000 working hours under normal conditions

Low pressure drop: Prevents energy loss, maintains system efficiency

Bypass valve: 2.5 bar opening pressure, ensures oil supply during clogging

Heavy‑duty build: Steel casing, anti‑corrosion coating, excellent vibration resistance

Leak‑proof seal: High‑temperature resistant gasket, tight fit, no oil leakage

Application Scope

Industrial screw air compressors

Hydraulic systems, diesel generators, construction & mining machinery

Widely used in manufacturing, chemical, textile and other industrial fields

Size Specifications

Outer Diameter: 93 mm

Total Height: 143 mm