Facing swing instability, hydraulic lag, or rotary drive wear in EX400-5 fleets? For mining contractors, wholesalers, and heavy equipment maintenance teams, downtime in large excavators leads to significant productivity loss and higher operating costs. RITO EX400-5 Hydraulic Rotary Motor 4334276 delivers stable torque output and efficient hydraulic-to-rotational conversion for reliable heavy-duty swing performance.
Item NO.:
4334276Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSCompared with standard aftermarket rotary motors, it improves internal gear stability, reduces mechanical loss, and ensures consistent operation under continuous mining cycles. Designed for OEM/OEM-equivalent supply, it supports bulk procurement and stable compatibility across mining, quarrying, and large-scale earthmoving applications.
| Part Number | 4334276 / 9133435 / 9138912 |
|---|---|
| Part Name | Excavator Hydraulic Rotary Motor & Rotary Slewing Drive Device Assembly Swing Drive Motor |
| Compatible Brand | HITACHI |
| Applicable Models | EX400-5 Heavy Mining Excavator |
| Application | Large mining excavator upper body slewing rotary hydraulic drive system |
| Material | Thick high-strength alloy steel + heavy-duty wear-resistant bronze friction accessories |
| Product Color | Matte anti-rust industrial metallic gray |
| Working Temperature | -22℃ to +58℃ |
| Key Function | Convert high-pressure heavy hydraulic power into stable ultra-heavy slewing torque to drive excavator upper body rotation for mountain stripping, hard rock excavation and large aggregate loading mining projects |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Thick Wooden Case/Reinforced Export Carton/Neutral Packing / Customized Package |
Ensures smooth swing operation under extreme load conditions.
Improves energy transfer from hydraulic pressure to rotary motion.
Built for continuous mining and harsh working environments.
Matches 4334276 / 9133435 / 9138912 specifications for EX400-5 systems.
FAQ
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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