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- Sany Genuine Swing Reducer GS27D25F-G1H1N Sany Material Code: JSJ004713521
- Product Details
- Company Details
Product Specification
|
|
|
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| Supply Ability |
1-10000pcs |
Packaging Details |
Wooden Case Packaging |
| Payment Terms |
T/T,Western Union |
Delivery Time |
In Stock |
| Brand Name |
Sany |
Model Number |
JSJ004713521 / 60201948 |
| Place of Origin |
China |
| |
Detailed Product Specification for Genuine Sany Swing Reducer GS27D25F-G1H1N
Brand: SANY SOOT, Genuine Sany Transmission Swing Reducer Assembly
Sany Internal Material Code: JSJ004713521
In Stock, Packed in Wooden Case, Quotation Available in US Dollars & Negotiable
Main Supply Scope: One-stop supply of swing reducers and swing motor assemblies for all medium-large and super-large Sany excavators
1. Model Code Explanation
- GS: Swing Reducer (Upper Structure Swing Drive Reducer)
- 27: Torque series code, matched with swing output torque configuration for 25-ton class equipment
- D: Two-stage planetary reduction structure
- 25: Basic reduction ratio identification
- F-G1H1N: Custom suffix for structural version, mounting flange, brake configuration and oil seal interface, designed to fit original installation positions of SY485/SY500/SY550
2. Applicable Models & Replacement Information
Original matched models: Sany large mining excavators SY485, SY500, SY550
Replacement part: Direct interchangeable substitute for old part No. 60201948, original motor-reducer assembly model M5X250CHB-10A-15A/275
Interchange advantages: Fully consistent mounting holes, connection dimensions, oil port layout and brake parameters. No hole modification or pipeline refitting required for direct overall replacement and assembly.
3. Core Technical Parameters
| Parameter Item |
Technical Specification |
| Structure Type |
Two-stage planetary gear swing reducer (with built-in swing brake) |
| Rated Output Torque |
27200 N·m |
| Peak Output Torque |
31500 N·m |
| Total Reduction Ratio |
25.1 |
| Maximum Input Speed |
1150 r/min |
| Net Weight of Assembly |
198 kg |
| Input Mounting Dimension |
Matches output spline of M5X250 series swing motor |
| Lower Mounting Flange |
Bolt hole layout for complete machine connection fully interchangeable with 60201948 |
| Brake Structure |
Multi-disc wet normally closed swing parking brake, hydraulically actuated for release |
| Brake Locking Function |
Locks upper structure after shutdown to prevent unintended rotation, swinging and drift |
| Lubrication Mode |
Built-in oil bath lubrication, pre-drilled screw holes for oil filling, oil draining and oil level inspection |
4. Internal Layered Structure & Material Analysis
1. Input Sun Gear & Spline Shaft (Inner Driving Component)
Made of 20CrMnTi alloy steel with overall carburizing and quenching treatment; tooth surface hardness reaches HRC58–62 with precision gear grinding. It withstands impact loads from frequent forward and reverse rotation and resists repeated torsional wear of splines, adapting to high-frequency start-stop working conditions of swing motors.
2. Intermediate Two-Stage Planetary Transmission Components (Planet Gears, Planet Carrier, Pin Shafts)
- Planet Gear: Adopts gradient carburizing strengthening process, resisting tooth surface pitting and tooth breakage, and greatly improving fatigue strength under high-intensity rotary operation in mining scenarios.
- Planet Carrier: Integrally forged and quenched & tempered with strong torsional rigidity, resisting distortion under frequent start-stop cycles.
- Equipped with high-precision heavy-duty needle roller bearings with factory-pre-set clearances, ensuring smooth rotation, low noise and slight vibration.
3. Swing Parking Brake Assembly
- Friction Plate: Copper-based sintered wear-resistant material featuring stable friction coefficient, high temperature resistance and anti-slip performance.
- Counter Steel Plate: Quenched, tempered and precision ground for rapid brake response.
- Preloaded disc spring structure: Automatically locks the swing mechanism when hydraulic oil supply is cut off and releases braking force under oil pressure, avoiding boom swinging and upper structure deflection during parking.
4. Outer Housing & Internal Ring Gear Structure
The housing is made of quenched & tempered cast steel with precision finishing, resisting extrusion and collision damage. The internal ring gear is subject to overall induction quenching to extend tooth surface wear resistance, suitable for heavy-duty frequent swing operation in earthmoving and mining environments.
5. Complete Sealing System
Combined structure of main oil seal and dust seal effectively blocks intrusion of dust, rainwater and muddy water, preventing gear oil emulsification and internal & external oil leakage inside the reducer, and extending service life of gears and bearings.
5. Structural Matching & Replacement Advantages
- Direct replacement for assembly No. 60201948 and M5X250CHB-10A-15A/275; flange size, spline specification, oil port position and mounting holes are 1:1 identical with zero modification needed for replacement.
- Genuine Sany transmission spare part; material code JSJ004713521 is compatible with Sany complete machine system ledgers, meeting compliance requirements for after-sales maintenance and whole-machine assembly.
- Optimized gear heat treatment for heavy-load swing conditions of SY485/SY500/SY550 large excavators, resisting impacts from frequent start-stop and reducing risks of gear tooth breakage and abnormal noise.
- Built-in swing damping structure mitigates start-stop impact, lowering overall swing vibration and impact noise of the machine.
- Modular design allows separate disassembly, maintenance and replacement of planetary gears, brake plates, oil seals and bearings to cut maintenance costs.
- Pre-assembled, inspected and debugged before delivery; the whole assembly can be directly installed on equipment to shorten downtime for repair.
6. Core Product Advantages
- Genuine SANY SOOT original quality with strong dimensional compatibility, the preferred upgrade replacement for old M5X250CHB assemblies.
- Stable brake locking performance eliminating risks of unintended swing on slopes and boom swinging during loading operations.
- Upgraded sealing structure reduces water ingress and oil leakage on harsh construction sites, with lower failure rate than generic aftermarket spare parts.
- Besides this model, we supply full-spec swing reducers and swing motor assemblies for small, medium, large and super-large Sany excavators in bulk, supporting bulk export orders, whole-machine matching, maintenance and retail orders.
7. Common Faults & Root Causes
- Insufficient swing power & slow rotation speed: Excessive clearance caused by internal gear wear, motor internal leakage, valve plate abrasion
- Spontaneous rotation after shutdown & brake failure: Thinned worn brake friction plates, seized brake piston, abnormal pressure in brake oil circuit
- Abnormal swing noise & severe vibration: Broken/missing gear teeth, excessive backlash of planet carrier, severe spline wear
- Oil seepage & leakage on reducer housing: Aged & damaged oil seals, blocked breather valve, excessive oil level, leakage from casting pinholes on housing
8. Full Set of Matching Swing System Spare Parts (One-stop Supply)
M5X250 swing motor assembly, swing reducer repair kit, brake friction plate kit, dedicated gear oil, upper & lower oil seal kit, loose planetary gear components, bearings & pin shafts, swing joint, slewing ring gear, swing hose fittings
Company Details
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Trading Company,Distributor/Wholesaler,Manufacturer,Agent,Importer,Exporter
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Total Annual:
8000000-22000000
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