For DX380, DX380LC, and DX400 excavators operating in heavy construction, quarrying, and mining environments, a reliable swing gearbox is critical for maintaining powerful rotation, smooth positioning, and stable machine productivity. Large excavators require a durable rotary reduction system that can handle high torque loads, repeated slewing cycles, and harsh working conditions. RITO Excavator Swing Gearbox 130426-00018 DX380 DX380LC DX400 Hydraulic Swing Drive Rotary Reduction Assembly Unit provides efficient hydraulic power transmission, stable torque output, and dependable swing performance for heavy-duty excavator applications. The 130426-00018 swing reduction gearbox is commonly associated with Doosan DX380, DX340LC-3, DX350LC-3, and related excavator swing drive systems.
Item NO.:
130426-00018Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockDesigned for professional excavator repair and replacement supply, this hydraulic swing drive reducer assembly delivers consistent rotary power transfer and reliable compatibility for Doosan heavy equipment fleets. It is an OEM-equivalent replacement solution for equipment distributors, maintenance workshops, and fleet operators who need durable swing components to reduce downtime, restore slewing efficiency, and maintain stable operation during continuous heavy-load cycles. The 130426-00018 assembly uses a planetary reduction structure designed for reliable torque conversion and rotary drive performance.
| Part Number | 130426‑00018 / 130426‑00018 |
|---|---|
| Part Name | DX380 DX380LC DX400 Excavator Swing Gearbox Hydraulic Swing Drive Rotary Reduction Assembly Unit |
| Compatible Brand | DOOSAN |
| Applicable Models | DX380, DX380LC, DX400 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 + 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 strong rotary force and smooth speed reduction for DX380 and DX400 excavator upper structure rotation.
Transfers hydraulic motor power through the reduction gearbox to achieve controlled and precise slewing movement.
Built with high-strength internal gear components to withstand vibration, impact loads, and long operating cycles in demanding environments.
Matches 130426-00018 specifications for DX380, DX380LC, and DX400 excavator hydraulic swing drive systems.
FAQ
Q: What are the common symptoms of a DX380 swing gearbox failure?
A: Slow swing speed, reduced rotation force, abnormal gearbox noise, vibration, and unstable upper structure movement may indicate internal gearbox wear.
Q: How does the 130426-00018 rotary reduction assembly improve excavator operation?
A: It reduces hydraulic motor speed while increasing torque output, helping large excavators achieve smoother and more powerful swing movement.
Q: What should customers verify before ordering a DX380 swing gearbox?
A: Buyers should confirm the excavator model, original part number, gearbox configuration, mounting specifications, and working conditions to ensure correct compatibility.
Q: Why do heavy equipment suppliers prefer complete swing drive assemblies?
A: A complete assembly simplifies replacement, reduces maintenance time, and helps restore reliable machine performance with improved installation efficiency.
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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