Wholesalers, agents and mine fleet operators encounter swing stuttering, slow rotation and persistent hydraulic leakage caused by low-standard valve plates, resulting in frequent machine downtime and heavy after-sales losses. This 640306 port plate matches M5X180 swing motors mounted on ZAX330, EX300-5, HD1430, VOLVO360 and SK350-8 for mining and heavy construction. Ultra-precise surface grinding eliminates cross oil leakage, cuts overhaul frequency and all bulk shipments come with complete batch quality certificates.
Item NO.:
640306Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSCompared with low-precision aftermarket parts, it provides superior sealing accuracy, reduced internal leakage, and stable performance under continuous heavy-load operation. Designed for M5X180 hydraulic motor systems, it supports OEM/OEM-equivalent supply, bulk procurement, and long-term compatibility across multiple excavator platforms in mining and construction.
| Parameter Item | Specification Data |
|---|---|
| Product Name | Swing Motor Valve Plate / Port Plate |
| Part Number | 640306 |
| Compatible Equipment | ZAX330, EX300-5, HD1430, VOLVO360, SK350-8 Excavator, M5X180 Swing Motor |
| Product Color | Silver metal base with bronze sealing friction layer |
| Working Ambient Temperature | -22℃ to +58℃ |
| Hydraulic Fluid Operating Temperature | -8℃ to +78℃ |
| Core Function | Distribute high-pressure hydraulic oil flow evenly to guarantee smooth, stable slewing performance of excavator swing drive |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Ensures accurate oil distribution for stable rotation and motor performance in M5X180 systems.
Fits ZAX330, EX300-5, HD1430, VOLVO360, SK350-8 excavator hydraulic motor systems.
Reduces friction loss and maintains stable performance under long-term high-pressure operation.
Suitable for dust-heavy, vibration-intensive, and continuous working environments.
FAQ
Q:What is required before installation?
A:Ensure hydraulic system flushing, clean oil condition, precise alignment, and correct torque tightening for sealing performance.
Q:How to ensure correct model selection?
A: Verify part number 640306 and confirm compatibility with M5X180 hydraulic motor systems across listed excavator models.
Q:Can it operate in mining conditions?
A:Yes, it is engineered for high-load, high-temperature, and dust-intensive environments such as mining, quarrying, and heavy construction operations.
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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