Facing swing gearbox failure, unstable rotation, or hydraulic torque loss in EX100 excavator fleets? Wholesalers, repair centers, and mining operators need dependable slewing systems to maintain uptime and reduce costly breakdowns. RITO Excavator Swing Reduction Gearbox 4199024 EX100 delivers stable torque conversion and precise hydraulic-to-rotational drive performance for heavy-duty excavator swing operations.
Item NO.:
4199024Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSLong-term earthmoving, road construction and small-scale quarry work quickly wears inferior slewing drive motors, causing unsteady swing speed and costly work suspension for end excavator operators, while distributors face inventory loss from incompatible split repair spare parts. Our heavy-duty one-piece 4199024 swing reduction gearbox assembly is the core rotary power component for Hitachi EX100 hydraulic system overhaul. It features fully OEM interchangeable dimensions with three quality grades to ease stocking pressure and support fast mass export shipment for global machinery dealers.
| Part Number | 4199024 / 4224917 / 9097684 |
|---|---|
| Part Name | Excavator Swing Reduction Gearbox & Rotary Slewing Drive Motor Assembly Unit |
| Compatible Brand | HITACHI |
| Applicable Models | EX100 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 slewing torque to drive excavator upper body rotation for earthmoving, road construction and small quarry excavation operations |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Integrated set combining hydraulic rotary motor body, internal friction components and multi-stage planetary swing reduction gearbox, fully consistent with OEM No.4199024 / 4224917 / 9097684 for Hitachi EX100; no cutting, grinding or separate component matching needed during field replacement.
Quenched alloy steel gear teeth resist frequent impact loads in urban construction sites and small quarries, output stable slewing torque and effectively prevent gear tooth fracture under continuous medium-load operation.
Genuine OEM original, brand new aftermarket and remanufactured overhauled versions are permanently stocked to satisfy differentiated budget demands of wholesalers and professional maintenance workshops.
Internal buffer design relieves sudden hydraulic pressure impact during swing start and stop, suppresses whole-machine vibration, reduces abrasion of internal core parts and extends the full service life of the entire slewing drive system.
FAQ
Q:What core operation standards for installing EX100 swing drive assembly?
A:Thoroughly clear all metal debris and impurities on slewing bearing mounting surface before assembly; fasten all flange bolts evenly following diagonal torque sequence; fill the reduction gearbox with dedicated heavy-load gear oil after installation and complete no-load rotation test before formal construction work.
Q:What information should be submitted to verify compatibility before bulk purchase?
A:Provide excavator model Hitachi EX100 and cross OEM part numbers 4199024 / 4224917 / 9097684; we cross-check full assembly dimensional drawings to avoid mismatched whole units and unnecessary inventory losses.
Q:How does this swing reduction gearbox assembly perform in cold mountain construction sites and high-dust hot quarries?
A:Low-temperature adaptive alloy and high-temperature resistant sealing components maintain stable working performance within -22℃ ~ +58℃; fully sealed gearbox structure blocks mineral dust invasion and reduces internal abrasive wear.
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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