Excavator Case Drain Filter (49T - 69T Series)
Precision Protection for Ultra-Heavy Hydraulic Pumps and Motors
The high-performance case drain filter is precision-engineered for the hydraulic systems of XCMG XE-series ultra-heavy excavators in the 49 to 69-ton range. Specifically designed to protect the main hydraulic pumps and travel motors, this filter manages the high-pressure fluid returning from the pump/motor housings. By effectively capturing microscopic wear debris before it enters the hydraulic oil cooling circuit, this filter is critical for maintaining the extreme precision and long-term reliability of these high-tonnage machines during intensive mining and quarrying operations.
1. Technical Specifications
| Parameter | Detail |
|---|---|
| Component Type | Case Drain (Leakage) Filter Element |
| Primary Function | Filters high-pressure case drain flow from pumps and motors to remove wear particles and prevent secondary system contamination |
| Compatibility (49T - 69T) | XE490D, XE490DK, XE500HB, XE520DK, XE550DK, XE600DK MAX, XE690DK |
2. Operational Importance
The case drain circuit is the most sensitive hydraulic path in heavy excavators. Because pump and motor failure often begins with internal wear, this filter acts as an early-warning system. By filtering the fluid exiting the pump/motor housings, it prevents metallic debris from circulating back into the main return or cooling lines. Regularly replacing this filter is a low-cost, high-impact maintenance practice that prevents catastrophic failure of expensive hydraulic motors and pumps, especially in the demanding 49T–69T class.
3. Maintenance Protocols
Replacement Cycle: Recommended every 1,000 operating hours or during any major hydraulic service. In high-output mining applications, check the filter status more frequently.
Maintenance Tips: Always clean the filter housing and surrounding area before removal to ensure absolutely no debris enters the sensitive case drain circuit. When changing this filter, pay close attention to the debris trapped in the media; the presence of fine metallic "shimmer" is an early indicator of internal component degradation. Ensure the system is fully depressurized before attempting to remove the filter housing to prevent injury and fluid spillage.
4. Technical Support & Logistics
Supplier: Xuzhou Sinoswift Import & Export Co., Ltd.
WhatsApp: +86 13701956981
Email: [email protected]