Facing swing gearbox failure, unstable rotation, or hydraulic torque loss in EX1100BE ultra-heavy excavators? Mining contractors, wholesalers, and fleet maintenance teams require high-reliability slewing systems to avoid costly downtime and production interruption. RITO Excavator Swing Reduction Gearbox 4237779 EX1100BE delivers stable torque conversion and precise hydraulic-to-rotational transmission for ultra-heavy mining operations.
Item NO.:
4237779Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
| Part Number | 4237779 / 4284142 |
|---|---|
| Part Name | Excavator Swing Reduction Gearbox & Rotary Slewing Drive Motor Assembly Unit |
| Compatible Brand | HITACHI |
| Applicable Models | EX1100BE Super Large Mining 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 | -25℃ to +60℃ |
| Key Function | Convert high-pressure hydraulic power into stable super heavy-duty slewing torque to drive excavator upper body rotation for large open-pit ore excavation, hard rock breaking and massive mineral loading mining operations |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Ensures stable and powerful swing rotation under extreme excavation loads.
Matches 4237779 / 4284142 specifications for EX1100BE systems.
Built for ultra-heavy impact, dust-heavy, and continuous operation environments.
Improves swing efficiency and reduces mechanical energy loss.
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 4237779 / 4284142 and confirm compatibility with EX1100BE 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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