For R150-9VS, R150, and R160 excavators operating in construction, quarrying, and earthmoving environments, a reliable swing drive system is essential for maintaining smooth rotation, accurate positioning, and efficient machine productivity. Continuous excavation cycles require a durable planetary reduction assembly capable of delivering stable torque output and dependable performance under demanding conditions. RITO Excavator Swing Drive Unit 39Q4-12100 R150-9VS R150 R160 Hydraulic Swing Gearbox Planetary Rotary Reducer provides efficient hydraulic power transmission, smooth speed reduction, and reliable slewing operation for Hyundai excavator swing systems. The 39Q4-12100 swing gearbox is commonly listed for Hyundai R150-9 swing gearbox applications.
Item NO.:
39Q4-12100Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockDesigned for excavator repair and replacement supply, this hydraulic swing drive reducer assembly delivers consistent rotary power transfer and reliable compatibility for Hyundai excavator fleets. It is an OEM-equivalent replacement solution for equipment distributors, maintenance workshops, and machine owners who need durable swing components to reduce downtime, restore slewing efficiency, and maintain stable operation during continuous working cycles. The planetary reduction structure helps convert hydraulic motor power into controlled rotary movement with improved torque output and smoother upper structure rotation.
| Part Number | 39Q4‑12100 / 39Q4‑12100 |
|---|---|
| Part Name | R150‑9VS R150 R160 Excavator Swing Drive Unit Hydraulic Swing Gearbox Planetary Rotary Reducer |
| Compatible Brand | HYUNDAI |
| Applicable Models | R150‑9VS, R150, R160 Medium Construction Excavator |
| Application | Hydraulic drive system for excavator upper body slewing; widely applied in municipal engineering, highway construction, pipeline laying and bulk material stacking work |
| Material | High‑strength forged alloy steel + medium‑load wear‑resistant bronze friction parts |
| Product Color | Matte anti‑rust industrial metallic gray |
| Working Temperature | -22℃ ~ +58℃ |
| Key Function | Convert hydraulic pressure into stable slewing torque to drive upper carriage rotation for infrastructure and earthmoving projects |
| Condition | 100% New, Aftermarket / OEM Equivalent Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Provides smooth speed reduction and reliable torque output for R150-9VS, R150, and R160 excavator upper structure rotation.
Converts hydraulic motor power through the reducer system to achieve smooth and controlled slewing movement.
Built with high-strength internal gears and transmission components to withstand vibration, repeated loads, and long operating cycles in demanding jobsite environments.
Matches 39Q4-12100 specifications for Hyundai R150-9VS, R150, and R160 excavator hydraulic swing drive systems.
FAQ
Q: What problems can occur when an R150 swing gearbox is damaged?
A: Slow swing speed, weak rotation force, abnormal gearbox noise, vibration, and unstable upper structure movement may indicate internal gearbox wear.
Q: How does the 39Q4-12100 planetary reducer support excavator operation?
A: It reduces hydraulic motor speed while increasing torque output, allowing smoother and more controlled excavator rotation.
Q: What details should customers provide before ordering a Hyundai swing drive unit?
A: Buyers should confirm the excavator model, original part number, gearbox type, mounting specifications, and working conditions.
Q: Why choose a complete swing drive assembly instead of individual gearbox components?
A: A complete unit simplifies installation, reduces repair time, and helps restore reliable swing system performance more efficiently.
Q: What quality options are available?
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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