For DH370-7, DH370, and DH380 excavators operating in heavy construction, quarrying, and mining-related applications, a reliable swing gearbox is essential for maintaining powerful rotation, smooth positioning, and continuous machine productivity. Large excavators require a durable planetary reduction system capable of handling high torque loads, repeated swing cycles, and harsh working conditions. RITO 404-00094 DH370-7 DH370 DH380 Excavator Swing Gearbox Hydraulic Swing Drive Planetary Reduction Unit Assembly provides stable torque transmission, efficient hydraulic power reduction, and dependable rotary performance for heavy-duty excavator operations. The 404-00094 swing reduction gearbox is commonly associated with Doosan DH370-7 and related large excavator swing drive applications.
Item NO.:
404-00094Order(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 assembly delivers consistent 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 machine performance during continuous heavy-load operation. The 404-00094 swing gearbox features planetary reduction components designed for reliable rotary speed reduction and torque amplification.
| Part Number | 404‑00094 / 404‑00094 |
|---|---|
| Part Name | DH370‑7 DH370 DH380 Excavator Swing Gearbox Hydraulic Swing Drive Planetary Reduction Unit Assembly |
| Compatible Brand | DOOSAN |
| Applicable Models | DH370‑7, DH370, DH380 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 torque output and smooth speed reduction for DH370 series 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 404-00094 specifications for DH370-7, DH370, and DH380 excavator hydraulic swing drive systems.
FAQ
Q: What are the common signs of a DH370 swing gearbox needing replacement?
A: Slow swing speed, reduced rotation force, abnormal gearbox noise, vibration, and unstable upper structure movement may indicate internal wear.
Q: How does the 404-00094 planetary reduction unit 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 buyers confirm before ordering a DH370 swing gearbox assembly?
A: Customers should verify the excavator model, original part number, gearbox structure, mounting specifications, and working conditions.
Q: Why choose a complete swing reduction gearbox instead of repairing separate components?
A: A complete assembly 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
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