For R220LC-9, R220, and R225 excavators operating in construction, quarrying, and earthmoving applications, a reliable swing reduction gearbox is essential for maintaining smooth upper structure rotation, strong torque output, and stable machine productivity. Continuous excavation operations require a durable planetary reduction system capable of handling repeated swing cycles and demanding working conditions. RITO Swing Reduction Gearbox 39Q6-12100 R220LC-9 R220 R225 Excavator Hydraulic Swing Drive Planetary Reducer Unit provides efficient hydraulic power transmission, stable torque conversion, and dependable rotary performance for Hyundai excavator swing systems. The 39Q6-12100 swing reduction gearbox belongs to the hydraulic swing drive category used for Hyundai R220-series excavator applications.
Item NO.:
39Q6-12100Order(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 medium excavator fleets. It is an OEM-equivalent replacement solution for equipment distributors, maintenance workshops, and fleet operators who require 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 while improving torque output and swing stability.
| Part Number | 39Q6‑12100 / 39Q6‑12100 |
|---|---|
| Part Name | R220LC‑9 R220 R225 Excavator Swing Reduction Gearbox Hydraulic Swing Drive Planetary Reducer Unit |
| Compatible Brand | HYUNDAI |
| Applicable Models | R220LC‑9, R220, R225 Medium‑Heavy Duty Construction Excavator |
| Application | Hydraulic drive system for excavator upper body slewing; widely applied in municipal engineering, highway construction, quarry excavation and bulk material stacking work |
| Material | High‑strength forged alloy steel + medium‑heavy‑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 R220LC-9, R220, and R225 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, impact loads, and long operating cycles in demanding working environments.
Matches 39Q6-12100 specifications for Hyundai R220LC-9, R220, and R225 excavator hydraulic swing drive systems.
FAQ
Q: What problems may indicate a damaged R220 swing reduction gearbox?
A: Slow swing response, reduced rotation torque, abnormal gearbox noise, vibration, and unstable upper structure movement may indicate internal wear.
Q: How does the 39Q6-12100 planetary reducer improve excavator performance?
A: It reduces hydraulic motor speed while increasing output torque, helping the excavator achieve smoother and more controlled swing operation.
Q: What information should buyers confirm before ordering a Hyundai swing gearbox?
A: Customers should verify the excavator model, original part number, gearbox specifications, mounting dimensions, and working environment.
Q: Why choose a complete planetary swing reducer assembly for replacement?
A: A complete unit simplifies installation, reduces maintenance 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
This RITO Excavator Drive Shaft PTO Shaft R300LC-9SZ R300LC-9S R320LC-9S R330LC-9S is a key transmission component for Hyundai excavators, responsible for transferring engine power to the hydraulic pump. It ensures stable torque transmission, smooth power delivery, and reliable operation in demanding construction environments.
View More
This RITO 31N8-27210 Right Joystick Control Handle Assembly is a key control component for Hyundai R320LC-7A, R330LC-7A, and R300LC-7 excavators, designed to transmit precise pilot control signals to the hydraulic system. It ensures smooth operation, accurate response, and stable control of the arm, bucket, and travel functions in construction environments.
View More
This RITO XJBN-00649 Hydraulic Spool Valve is a critical internal component for the main control valve of Hyundai R320LC-7A and R330LC-7A excavators, designed to precisely regulate hydraulic oil flow and direction within the system. It ensures accurate control response, smooth operation, and stable performance in construction environments.
View More
This RITO XJBN-00650 Hydraulic Spool Valve is a critical internal component for the main control valve of Hyundai R320LC-7A and R330LC-7A excavators, designed to precisely regulate hydraulic oil flow and direction within the system. It ensures accurate control response, smooth operation, and stable performance in demanding construction environments.
View More
This RITO R210-7YLF Hydraulic Main Relief Valve is a critical safety component for Hyundai R210-7, R215-7, and R220-7 excavators, designed to regulate and limit maximum hydraulic pressure within the system. It protects key components from overload, ensuring stable pressure control, smooth operation, and reliable performance in construction environments.
View More
This RITO 31N6-17740 Negacon Valve Assembly is a key hydraulic control component for Hyundai R210-7, R215-7, R220-7, and R320LC-7A excavators, designed to regulate negative flow signals and coordinate pump output with system demand. It ensures smooth multi-function operation, optimized power distribution, and improved fuel efficiency in construction environments.
View More
Excessive axial play and metal-on-metal friction in excavator joints lead to catastrophic pin wear and structural misalignment. Standard washers often fail under the intense vibration of mining sites. The XKAQ-00214 eliminates these gaps, preventing the costly bore repairs that paralyze your R210LC-7 fleet.
View More
Excavator planetary failure forces costly teardowns. XKAQ-00400 eliminates loose pocket wear & cracked bridges seen in weak carriers. Direct-fit for Hyundai R330-9 final drives. Reduce rework claims now.
View MoreLeave A Message
Scan to wechat :
