Facing swing instability, hydraulic pressure loss, or rotary drive wear in EX1100-3 fleets? For mining contractors, heavy equipment wholesalers, and large-scale maintenance teams, downtime in ultra-large excavators leads to significant operational loss. RITO Excavator Upper Swing Drive 4334727 EX1100-3 delivers stable torque output and efficient hydraulic-to-rotational conversion for reliable heavy-duty swing performance.
Item NO.:
4334727Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSCompared with standard aftermarket swing drives, it improves gear engagement precision, reduces internal backlash, and maintains stable performance under extreme mining workloads. Designed for OEM/OEM-equivalent supply, it supports bulk procurement and consistent compatibility across large mining, quarrying, and earthmoving operations.
| Part Number | 4334726 / 4389833 / 4405479 |
|---|---|
| Part Name | Excavator Upper Swing Drive & Slewing Rotary Motor Unit Assembly Swing Drive Motor |
| Compatible Brand | HITACHI |
| Applicable Models | EX1100-3 Super Large Mining Excavator |
| Application | Upper body slewing rotary hydraulic drive system for ultra-large open-pit mining excavators |
| Material | Extra thick high-strength alloy steel + oversized heavy wear-resistant bronze friction accessories |
| Product Color | Matte anti-rust industrial metallic gray |
| Working Temperature | -22℃ to +58℃ |
| Key Function | Convert ultra-high-pressure heavy hydraulic power into stable super heavy slewing torque to drive giant excavator upper body rotation for mountain stripping, mass hard rock excavation and ultra-large aggregate loading mining projects |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Reinforced extra-thick wooden export case / Heavy-duty carton / Neutral packing / Customized mine-grade export package |
Ensures reliable swing rotation under extreme load conditions.
Improves energy transfer from hydraulic system to rotary motion.
Built for continuous operation in harsh, high-impact environments.
Matches 4334727 / 4389833 / 4405479 specifications for EX1100-3 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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