Description
M5X80 170-9893 Swing Motor Assembly Overview
The M5X80 170-9893 Swing Motor manufactured by Tatan is a heavy-duty axial piston rotary hydraulic motor belonging to our Excavator Swing Motor Assembly classification. Engineered specifically for Caterpillar 312D, 312D L, 313D, 314D CR, and 311D LRR 12-14 ton excavators, swapping a worn or internally leaking motor with this complete M5X80 170-9893 Swing Motor unit resolves turntable drift, sluggish slewing acceleration, and hydraulic chatter under heavy trenching and loading cycles.
Constructed strictly to original Kawasaki M5X80 engineering tolerances, this complete unit integrates an 80 cc axial piston cylinder block, precision-lapped bi-metal valve plate, dual anti-shock crossover relief valves, and an internal multi-disc mechanical parking brake. It delivers immediate hydraulic response and mounts directly to the original Cat 312D reduction gearbox with zero bracket modifications.
Key Attributes & Parameters for M5X80 170-9893 Swing Motor
| Product Category | Swing Motor Assembly | Warranty | 1 Year / 12 Months |
| Specific Motor Model | Kawasaki M5X80 / MFC80 Slewing Motor | Brand Name | Tatan |
| Compatible Equipment | Caterpillar 312D | 312D L | 313D | 314D CR | OEM Part Number | 170-9893 / 333-3071 / 422-9182 |
| Rated Working Pressure | 31.4 – 34.3 MPa (314 – 343 Bar / 4975 PSI) | Braking System | Integrated Multi-Disc Mechanical Brake |
| Crossover Relief Pressure | 26.5 – 28.0 MPa (265 – 280 Bar) Pre-Calibrated | Drive Spline Shaft | Standard Involute Spline for Cat 312D Reducer |
| Machinery Test Report | Provided (100% Bench Torque Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Housing Metallurgy | High-Tensile Nodular Cast Iron Body (60kg) | Place of Origin | Guangdong, China |
| Quality Status | 100% Brand New Swing Motor Assembly | Packaging | Export Reinforced Wooden Box Packaging |
Supported Machinery Brands & Swing Motor Coverage
In addition to Caterpillar, Tatan manufactures replacement complete swing motors, rotary groups, and brake valves for leading machinery brands:
Application Scenarios & Buyer Value
When resolving turntable rotation and drift issues with our M5X80 170-9893 Swing Motor, workshops and equipment contractors secure measurable operational advantages:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Cat 312D Turret Drift Repair | Installing the M5X80 170-9893 Swing Motor restores 100% mechanical holding force immediately, stopping hazardous cab creeping on side inclines under loaded 0.65 m³ bucket conditions. |
| Hydraulic Component Overhaul Centers | Eliminates high-cost trial-and-error rebuilding of scored cylinder blocks, worn brake pistons, and warped valve plates on old core units. |
| Civil Trenching & Municipal Fleets | Restores crisp swing acceleration and smooth deceleration without violent hydraulic shudder during rapid pipe placement and backfilling cycles. |
| International Machinery Importers | Pre-tested, export-grade crated replacement units ready for immediate deployment to regional construction jobsites worldwide. |
M5X80 170-9893 Swing Motor OEM Diagnostic Guide
Use this technical diagnostic guide to identify slewing circuit and braking faults on your Caterpillar 312D excavator:
| Slewing Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Superstructure drifts or creeps when parked on an incline | Worn mechanical parking brake friction discs or fatigued brake return springs failing to clamp the rotating group when pilot pressure drops. | Replace with a complete factory-tested M5X80 170-9893 Swing Motor assembly. |
| 2. Sluggish slewing acceleration or weak rotation breakout torque | High internal oil bypass across scored valve plates and worn piston shoes, dropping motor working pressure below 21.0 MPa. | Inspect pilot control line pressure (3.9 MPa) and replace with a brand new high-torque Tatan swing motor. |
| 3. Violent mechanical shudder or banging noise when stopping swing | Crossover shockless relief valve cartridge jammed with metal contaminants or cracked relief poppet springs under 13-ton inertia. | Flush motor drain gallery, replace hydraulic return filters, and install a pre-calibrated replacement motor. |
| 4. External hydraulic oil leaking past the motor output shaft seal | Excessive casing backpressure (> 0.20 MPa) blowing out the high-pressure shaft seal due to a restricted or pinched case-drain line. | Check and clear case-drain line restrictions and install a new sealed motor unit with dual lip seals. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan swing motor assembly is preservation-oiled, sealed with steel port plugs, wrapped in heavy waterproof film, and bolted inside an export-grade reinforced wooden crate.
✈️ Express Air Courier
Partnered with DHL, FedEx, UPS, and TNT for 3-7 day express door-to-door delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL ocean container shipping for heavy swing drive assemblies and bulk inventory orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with custom high-density foam inserts to prevent shipping shock.
Quality Control & International Certificates
Tatan hydraulic and slewing components are manufactured under ISO 9001 certified quality control systems and strictly comply with CE industrial machinery safety directives.
M5X80 170-9893 Swing Motor FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
Reviews
There are no reviews yet.