Description
Doosan DH215-9 Swing Motor Assembly Overview
The Doosan DH215-9 Swing Motor Assembly (OEM Part Numbers: 401-00057, 401-00057A, 2274-6012, 2274-6015) manufactured by Tatan is a heavy-duty hydraulic rotating device belonging to our Excavator Swing Motor Assembly classification. Designed specifically for Doosan DH215-9, DH220-9, DH225-9, DX215-9, and DX225LC-9 20-to-22 ton excavators, replacing your worn swing device with a Tatan complete DH215-9 swing motor assembly eliminates upper-structure drifting, weak rotation torque, and gear grinding noise instantly.
Built strictly according to original OEM specifications, this complete swing device integrates a high-torque axial piston motor, planetary reduction gear set, and spring-applied hydraulic release parking brake, ensuring 100% direct bolt-on fitment with swing bearing ring gears and hydraulic pilot lines. Every unit undergoes strict hydraulic pressure testing and rotational torque checks on specialized bench test stands before dispatch to guarantee zero oil leakage and immediate operational readiness for earthmoving, digging, and quarry mining projects.
Key Specifications for Doosan DH215-9 Swing Motor Assembly
| Product Category | Excavator Swing Motor Assembly | Warranty | 1 Year / 12 Months |
| Specific Motor Model | Doosan DH215-9 Hydraulic Swing Motor | Brand Name | Tatan |
| Compatible Equipment | Doosan DH215-9 | DH220-9 | DX225 | OEM Part Number | 401-00057 / 2274-6012 |
| Max Relief Pressure | 28.0 – 31.4 MPa (280 – 314 bar) | Reduction Ratio | High-Torque Planetary Gear Reduction |
| Parking Brake Type | Hydraulic Released Spring Applied Mechanical Brake | Valves Built-In | Anti-Rebound & Cushion Relief Valves |
| Machinery Test Report | Provided (100% Bench Pressure Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Quality Status | 100% Brand New Assembly | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Swing Motor Coverage
In addition to Doosan, Tatan manufactures replacement complete hydraulic swing motors and reduction gearboxes for leading excavator brands:
Application Scenarios & Buyer Value
When upgrading or replacing your 20-ton excavator hydraulic swing system with our Doosan DH215-9 Swing Motor Assembly, buyers achieve maximum operational precision and rotation stability:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Doosan DH215-9 / DX225 Swing Device Replacement | Complete swing motor swap eliminates upper-structure drift on slopes and restores fast swing torque. |
| Hydraulic Repair Workshops | Eliminates tedious brake disc replacement, planetary gear fitting, and seal honing; saves mechanic labor hours. |
| Excavator Parts Distributors & Stockists | High-demand 20-ton excavator swing motor ready for immediate local resale to plant hire fleets and mining networks. |
| Rental Fleet Maintenance | Extends 20-ton excavator working lifespan and ensures zero hydraulic swing safety hazards on site. |
Doosan DH215-9 Swing Motor Assembly OEM Diagnostic Guide
Use this OEM manual hydraulic diagnostic guide to troubleshoot operational swing motor symptoms on your Doosan DH215-9:
| Hydraulic/Mechanical Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Upper structure drifting on slope / Swing brake slip | Worn mechanical brake friction discs or internal swing motor piston cylinder oil bypass (>28.0 MPa drop). | Install Tatan new DH215-9 swing motor assembly; check pilot brake release pressure line. |
| 2. Slow rotating speed & weak swing torque under bucket load | Relief valve pressure spring fatigue, worn bimetallic valve plate, or pilot relief valve contamination. | Flush swing pilot oil lines, adjust relief valve pressure, or swap to a new DH215-9 complete swing motor. |
| 3. Loud metallic grinding noise in swing gearbox | Planetary gear tooth wear or needle bearing collapse due to insufficient gear oil lubrication. | Replace with Tatan new complete swing motor and gearbox assembly; refill with SAE 80W-90 gear oil. |
| 4. Hydraulic oil leaking into swing bearing ring pit | Damaged lower drive shaft oil seal or blown casing drain seal from high backpressure (>0.2 MPa). | Replace lower shaft seal with high-pressure NOK seal, clear casing drain return line, or install complete assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan Doosan DH215-9 hydraulic swing motor undergoes anti-rust oiling, waterproof plastic sealing, and solid export wooden box packaging.
✈️ Express Air Courier
Partnered with DHL, FedEx, UPS, and TNT for express door-to-door delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL ocean container shipping for heavy swing motors and bulk orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with thick shockproof foam lining for maximum safety.
Quality Control & International Certificates
Tatan hydraulic swing motors are manufactured under ISO 9001 quality management systems and strictly comply with CE safety standards.
Doosan DH215-9 Swing Motor Assembly FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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