Facing swing instability, hydraulic inefficiency, or rotary drive wear in EX220-3 fleets? Wholesalers, mining contractors, and repair centers need reliable upper swing systems to maintain uptime and avoid costly machine downtime. RITO Excavator Upper Swing Drive 4255503 EX220-3 delivers stable torque output and precise hydraulic-to-rotational conversion for heavy-duty excavator operations.
Item NO.:
4255503Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
| Part Number | 4255503 / 9111267 |
|---|---|
| Part Name | Excavator Upper Swing Drive & Slewing Rotary Motor Unit Assembly |
| Compatible Brand | HITACHI |
| Applicable Models | EX220-3 Excavator |
| Application | Excavator upper body slewing rotary hydraulic drive system |
| Material | High-strength alloy steel + wear-resistant bronze friction accessories |
| Product Color | Matte anti-rust industrial metallic gray |
| Working Temperature | -22℃ to +58℃ |
| Key Function | Convert high-pressure hydraulic power into stable medium-heavy slewing torque to drive excavator upper body rotation for municipal earthmoving, road construction and small quarry excavation operations |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Ensures smooth and powerful rotation for EX220-3 excavator operation cycles.
Matches 4255503 / 9111267 specifications for EX220-3 systems.
Built for high-load, dust-heavy, and continuous working environments.
Improves swing response and reduces energy loss during operation.
FAQ
Q:What must be checked before installation?
A:Ensure hydraulic system flushing, correct alignment, clean oil condition, and proper torque tightening before assembly.
Q:How to ensure correct model selection?
A:Verify part numbers 4255503 / 9111267 and confirm compatibility with EX220-3 swing systems.
Q:Can it operate in mining conditions?
A:Yes, it is engineered for high-load, high-impact, and dust-heavy environments such as mining, quarrying, and large-scale excavation 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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