Experiencing weak swing response, hydraulic instability, or gearbox wear in EX300H-2 machinery fleets? For wholesalers, mining contractors, and maintenance teams, unplanned downtime directly impacts productivity and cost control. RITO Swing Device Assembly 4294479 EX300H-2 M2X210 provides stable rotational output and reliable hydraulic energy conversion for demanding excavator swing operations.
Item NO.:
4294479Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
| Part Number | 4294479, Motor Model M2X210 |
|---|---|
| Part Name | Excavator Swing Device Assembly, Swing Reduction Gearbox & Slewing Drive Motor Unit |
| Compatible Brand | HITACHI |
| Applicable Models | EX300H-2 Heavy-Duty Excavator, M2X210 Slewing Rotary Motor |
| 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 heavy slewing torque to drive excavator upper body rotation for heavy earthmoving, hard rock excavation and aggregate loading construction operations |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Maintains smooth swing control even under fluctuating load conditions.
Reduces backlash and improves mechanical precision for EX300H-2 systems.
Designed for continuous operation in mining and heavy excavation sites.
Improves hydraulic-to-mechanical conversion efficiency and response speed.
FAQ
Q: Why does the EX300H-2 swing system lose rotational power under heavy load?
A: It is usually related to internal gear wear, pressure drop in the hydraulic circuit, or reduced pump efficiency.
Q: What pre-installation checks are essential for a 4294479 swing device assembly?
A: Confirm hydraulic line cleanliness, verify mounting accuracy, and ensure system pressure remains within rated specification.
Q: What indicates early-stage failure in a swing reduction gearbox?
A: Early signs include intermittent noise, delayed response, and uneven torque delivery during rotation.
Q: How do working conditions influence the durability of M2X210 swing drive components?
A: Continuous overload, abrasive dust environments, and poor hydraulic filtration significantly accelerate component 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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