Description
The swing drive assembly on the 6-ton Doosan DH60-7 (and DH60-7 Gold) excavator carries the entire rotating mass of the upper frame, boom, and loaded bucket. Tatan Machinery supplies 100% Brand New complete hydraulic swing motor assemblies (OEM part numbers: 401-00022 / 2401-9286, interchangeable with 401-00455 / 2401-9286A). This is a complete drop-in unit combining the high-pressure axial piston motor head, planetary reduction gearbox, output drive pinion shaft, and integrated relief valve manifold. Backed by our 12-Month Comprehensive Replacement Warranty.
Commercial Product Profile
Wholesale Buyer Protection
Physical Storefront & Showroom Product Display
Tatan Machinery is a verified first-party physical stocking wholesaler of excavator swing drives and hydraulic assemblies. We do not dropship unverified products. Below is our physical showroom swing motor presentation:
Actual shelf display and physical showroom stock at Tatan Machinery facility
Swing Motor Mechanical & Hydraulic Specifications
| Parameter | Engineering Metric |
|---|---|
| Hydraulic Motor Series | M2X63 / MF35 Series Swashplate Axial Piston Motor |
| Reduction Gearbox Type | Integrated Multi-Stage Planetary Gear Slew Reduction Box |
| Rated Circuit Relief Pressure | 20.6 MPa (210 bar / 2,987 PSI) Factory Preset Overload Relief |
| Upperstructure Slew Speed | Approx. 9.5–10.2 RPM Revolutions |
| Parking Brake System | Hydraulically Released, Spring-Applied Wet Multi-Disc Friction Brake |
| Total Assembly Weight | Approx. 52 kg (115 lbs) Complete Assembly with Pinion Shaft |
| Machine Fitment Range | Doosan DH60-7, DH60-7 Gold, DX60 (6.0-Ton Class) |
Field Reality: Why Replacing the Complete Slew Assembly Saves Shop Time
When a 6-ton excavator develops swing play, grinding noises, or drift on hillside trenches, field mechanics frequently replace just the hydraulic motor head seals. In most cases, this fails to solve the root problem:
- Planetary Gearbox Tooth Pitting & Backlash Slop: After thousands of heavy trenching cycles, the planet pinions and ring gear teeth inside the lower reduction box suffer metal fatigue. Installing a new motor head onto an old, loose gearbox results in loud backlash clanking and rapid gear tooth stripping.
- Slew Drift on Slopes from Glazed Brake Discs: When digging on an incline with joysticks centered, the cab slowly creeps downhill. Overheated hydraulic oil glazes the wet friction brake plates, destroying holding torque.
- Anti-Reaction Valve Spring Fatigue (Violent Cab Rebound): When swinging a loaded 0.28m³ bucket and letting go of the lever, the cab bounces backward 15 cm with a harsh metallic shock. The internal cushion valves have failed, damaging the main ring gear teeth.
- Motor Shaft Seal Failure Flooding Gearbox: High case-drain backpressure blows out the lower shaft seal. Hydraulic oil floods down into the slew gearbox, diluting the extreme-pressure grease and forcing black slurry out of the dipstick.
12-Month Comprehensive Replacement Warranty
Every 100% Brand New 401-00022 swing motor supplied by Tatan Machinery includes our full 12-Month Replacement Guarantee:
- Full Major Mechanical Coverage: Cylinder barrel seizure, piston slipper separation, output pinion shaft fracture, and internal brake spring fatigue resulting from manufacturing defects.
- Direct Replacement Support: If any defect occurs under proper maintenance, we dispatch immediate replacement components or complete motor assemblies without lengthy disputes.
Export Heavy-Duty Packaging Protocol & Crating Video
Precision motor rotating groups require clinical protection against airborne moisture and rough ocean handling:
- Threaded Metal Port Plugs: Main working ports, brake release pilot port, and case drain port fitted with heavy-duty metal blanking caps.
- Anti-Corrosion Wax Coating: Output drive pinion teeth and unpainted mounting pilots coated with heavy marine anti-rust wax.
- ISPM 15 Solid Plywood Box with Steel Strapping: The motor is bolted down upright to high-density solid wood base skids inside an export crate.
📹 Live Wooden Crate Packaging & Dispatch Video
Watch our export team crate, bolt down, and band this brand-new 401-00022 swing motor:
✓ Live crating and strapping filmed at Tatan Machinery dispatch dock
Supported Global Logistics & Customs Documentation
Prompt logistics dispatch adapted for urgent machine-down emergencies and trade stock:
- Air Express (3–7 Days Door-to-Door): Handled via DHL Express, FedEx, or air cargo for rapid jobsite recovery.
- Sea Freight Consolidation: Economical LCL shipping for distributors stocking multiple units.
- Tariff-Ready Paperwork: Commercial invoice detailing official HS Code (8412.29 – Hydraulic Motors), packing lists, and Certificate of Origin (COO) upon request.
Daily overseas air express dispatches and containerized freight loading
Buyer Procurement FAQ: Key Decision Factors
Q: Is this 401-00022 swing motor a complete unit with the reduction gearbox, or only the motor head?
A: This is a complete, fully assembled drop-in swing drive assembly. It includes the complete hydraulic axial piston motor head, the multi-stage planetary reduction gearbox, the lower drive pinion shaft, the internal wet parking brake pack, and dual anti-reaction shock relief valves. It is ready to bolt directly onto your DH60-7 revolving deck.
Q: Are your hydraulic pumps and other products brand new as well?
A: Yes. All our hydraulic pumps, main control valves, final drive travel motors, and swing motors are 100% Brand New. Only our heavy diesel engine assemblies on this site are professionally remanufactured with brand-new internal wear components. You can order with absolute confidence in factory-new metallurgical reliability.
Q: My DH60-7 has part number 2401-9286 or 401-00455. How do you confirm fitment?
A: 401-00022, 2401-9286, and 401-00455 are directly interchangeable Doosan/Daewoo OEM part numbers used across DH60-7, DH60-7 Gold, and DX60 production batches. Send your machine’s serial number (PIN) from the cab tag and clear photos of your current motor nameplate to Gavin. We cross-verify the output pinion tooth count and pilot flange diameter in the official Doosan EPC database within 10 minutes.
Q: Can I see live photos and stamped serial numbers of the actual motor before dispatch?
A: Absolutely yes. Transparency is our core commitment. Prior to balance payment and dispatch, we send clear photos and live video of the exact unit assigned to your order. You will see the stamped serial tag, output pinion teeth, sealed steel port plates, and the wooden box packaging process.
Q: What happens if the motor crate is damaged during sea freight, and what customs documentation is supplied?
A: Every shipment from Tatan Machinery is protected by full commercial marine cargo insurance. The motor is bolted down directly onto internal skids within a fumigation-free solid plywood crate. We supply commercial invoices with accurate HS Codes (8412.29), detailed packing lists, and Certificates of Origin for smooth customs clearance at your destination port.
🔗 Frequently Purchased Together with Doosan DH60-7 Swing Motor:
- DIESEL ENGINE:
Doosan DH60-7 Yanmar 4TNV94L Diesel Engine Assembly
Remanufactured - CONTROL VALVE:
Main Control Valve Assembly (401-00058) for Doosan DH60-7
100% Brand New - HYDRAULIC PUMP:
Main Hydraulic Pump Assembly (401-00063) for Doosan DH60-7
100% Brand New - FINAL DRIVE:
Final Drive Travel Motor Assembly for Doosan DH60-7
100% Brand New - BRAND CATALOG:
View All Doosan Excavator & Heavy Equipment Parts Collection
Get Wholesale Factory Quote for Doosan DH60-7 Swing Motor 401-00022
Looking for direct factory pricing, stock availability, or 12-month warranty terms for Doosan DH60-7 swing motors? Contact senior specialist Gavin now!
💡 Fast Quote: Send your machine serial number or current motor nameplate photos for an accurate match within 10 minutes!
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote based on freight destination and configuration.
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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