Crawler Excavator Parts
This swing motor weighs 61 kg per unit and adopts a compact integrated structure composed of oil distribution plate, swash plate, stator, transmission shaft and cylinder block. It is perfectly matched with C-9 engine and compatible with a full range of CAT 330C, 330D, 336D and derivative models including FM, L, LN, MH and M330D series. The internal friction pairs are precisely processed to reduce wear and internal leakage. The integrated mechanical brake can activate automatically during shutdown to prevent accidental rotation caused by inertia or gravity, while the delay valve optimizes brake release logic and eliminates startup impact.
The overall hardness of key parts reaches HRC 48-52. The anti-corrosion coating effectively resists erosion from dust, moisture and hydraulic oil in harsh environments. Optimized hydraulic loop design raises overall operating efficiency by 30% and improves fuel economy by up to 20%. Meanwhile, it cuts long-term maintenance costs by 25%.
Made of high-quality steel with surface hardness of HRC 48-52, featuring excellent wear resistance and fatigue resistance for long-duration heavy-load operation.
Built-in mechanical brake, relief valve and delay valve realize stable braking and buffer startup impact, greatly improving operational safety.
Optimized internal hydraulic structure boosts working efficiency by 30% and fuel efficiency by up to 20%, reducing comprehensive operating costs.
Premium anti-corrosion coating and precise sealing design prevent oil leakage and component corrosion, adapting to dusty and humid working environments.
Compact integrated structure lowers vibration and noise during rotation, creating a better operating environment and extending service life of related parts.
