The central rotary joint serves as the core hydraulic transmission component of the excavator’s swing system, enabling continuous 360-degree rotation of the upper structure while maintaining stable hydraulic oil flow. It efficiently transfers hydraulic power to the boom, arm, bucket, and swing circuits, ensuring smooth, reliable, and efficient machine operation under demanding conditions.
| Category | Specification |
|---|---|
| Product Name | SANY Excavator Rotary Joint |
| Part Number | 60173157 |
| Component Type | Swing |
| Application System | Rotary device |
| Compatible Machine | SY285 SY305 SY335 SY365 SY375 Excavators |
| Function | Hydraulic Transmission、Continuous Rotation、Pressure Stability、Leak Prevention |
| Material | steel |
| Installation Position | Fixed Undercarriage / Swing Bearing |
| Condition | New |
| Replacement Type | Original / OEM / Aftermarket Optional |
| Package | Standard protective packaging |
| Availability | In stock / Fast delivery |
SANY Excavator Central Rotary Joint – Smooth Rotation, Maximum
Reliabilityngineered for precise and stable hydraulic performance, this central rotary joint delivers continuous 360-degree rotation, stable hydraulic flow, and long service life under demanding operating conditions. Available in genuine and premium OEM options with precise fitment and strict quality testing. Fast global delivery, competitive pricing, and reliable supply support your excavator’s uptime and operational efficiency.

Manufactured with high-strength alloy materials and precision-engineered internal components, this central rotary joint ensures smooth 360-degree rotation, stable hydraulic flow, and long service life. It efficiently transfers hydraulic oil between the fixed undercarriage and rotating upper structure, enabling reliable operation of the boom, arm, bucket, and swing functions. Designed for precise system matching, it maintains optimal performance under demanding working condition

With clear warranty terms and responsive technical support, we offer full assistance from product selection to after-sales service, giving customers greater confidence and peace of mind throughout the product lifecycle.
| Comparison Item | Original Parts (Genuine) | OEM Parts |
|---|---|---|
| Source | Supplied by original equipment manufacturer or authorized channels | Produced by OEM factories following original specifications |
| Design Standard | 100% original design and drawings | Developed based on original structure and parameters |
| Compatibility | Perfect match with the specified machine model | Fully compatible with corresponding models |
| Quality Control | Strict factory-level quality inspection | Controlled production and inspection to OEM standards |
| Performance Stability | Consistent and reliable in long-term operation | Stable performance for daily and heavy-duty use |
| Service Life | Designed for maximum service life | Optimized balance between durability and cost |
| Cost Level | Higher cost due to brand and authorization | More cost-effective solution |
| Availability | Limited stock, longer lead time in some cases | Flexible supply with faster delivery |
| Application Scenarios | High-demand, warranty-sensitive projects | Maintenance, replacement, and cost-controlled projects |
| Warranty & Support | Official warranty from original manufacturer | Supplier-backed warranty and technical support |
| Customer Choice | Best for customers requiring original certification | Ideal for customers seeking quality + cost balance |
| Picture | Type | Part Number | Application | ||
|---|---|---|---|---|---|
| Sany Excavator Central Rotary Joint 60211869 | 60211869 | SY205、 SY215、 SY225 、SY235 、SY245 | |||
| Sany Excavator Central Rotary Joint A229900001758 | A229900001758 | SY205、 SY215、 SY225 、SY235 、SY245 | |||
|
Sany Excavator Central Rotary Joint A229900004501 | A229900004501 | SY55 SY65 SY75 | ||
|
Sany Excavator Center Swivel Joint A229900004512 | A229900004512 | SY135 | ||
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