Product Overview

Crankshaft is the core power transmission component of reciprocating piston air compressors. It converts the rotating power of the motor into reciprocating linear motion of pistons via connecting rods to achieve air compression. Subject to torsion, impact and alternating loads during operation, its material strength and machining precision directly affect compressor stability, vibration level and service life. This replacement crankshaft fits multiple piston air compressor models. It can directly replace worn, scratched, deformed or broken original crankshafts to restore normal operation of your air compressor.

Key Features

✅ High-strength Forged Material, Great Torsion & Impact Resistance Made of premium forged steel with quenching and tempering plus surface hardening heat treatment. The journal surface gains higher hardness. It withstands continuous alternating loads without easy deformation or fracture, suitable for long-hour continuous industrial operation.

✅ CNC Precision Machining, Excellent Concentricity CNC precision machining is adopted to keep tight tolerances for journals and cranks. Each crankshaft is well dynamic balanced. Low eccentricity during rotation reduces vibration and noise. Perfect matching with connecting rods and bearing bushes prevents bearing bush ablation and wear, extending service life of the whole moving assembly.

✅ Surface Strengthening Treatment, Wear & Corrosion Resistance Strengthened surface on journals reduces friction loss and resists rust. It maintains stable performance in dusty and humid workshop environments. Surface scratching and pitting can be greatly reduced to cut down maintenance frequency.

✅ Wide Compatibility & Convenient Maintenance Compatible with many mainstream reciprocating air compressor models. Sold individually or as a full set together with connecting rods, bearing bushes and pistons. Excellent fitting shortens equipment downtime and minimizes production loss.

Why Choose Us

We are a one-stop supplier for air compressor filter elements and spare parts. With over 10-year industry experience, factory direct supply. All compressor spare parts go through strict quality control. Sufficient stock and fast reply. This product comes with 1‑year warranty. Bulk orders and custom production based on drawings are available. We deliver reliable air compressor spare part solutions for global buyers.

Applications

Widely used for industrial reciprocating piston air compressors, maintenance and replacement for workshops, auto repair shops, mining and other industrial sites.

Note

Please confirm your compressor model, crankshaft journal size and crank stroke before ordering. Custom production is available if you provide technical drawings.