| ✓ Part Number 14279931 |
✓ Compatible Models SR285RW/SR205C10/ SR285RC/ SR265C10 | ✓ Availability In Stock |
✓ Quality OEM / Genuine / Aftermarket |
✓ Delivery Worldwide Shipping |
Reducer Assembly 14279931 is a heavy‑duty drive transmission component for SANY rotary drilling rig SR360HC10, SR235W, SR235S and SR405RH10. It converts high‑speed, low‑torque hydraulic motor power into low‑speed, high‑torque output to drive drill‑related mechanisms under tough piling‑construction working conditions.
| Category | Specification |
|---|---|
| Product Name | Reducer Assembly |
| Part Number | 14279931 |
| Cross Reference | Not Available |
| Component Type | Planetary Gear Reducer Unit |
| Application System | Drive Transmission System |
| Compatible Equipment | SANY SR360HC10, SR235W, SR235S, SR405RH10 Rotary Drilling Rig |
| Equipment Type | Rotary Drilling Rig |
| Main Function | Reduce rotational speed and amplify output torque for drive mechanisms |
| Supply Options | Original / OEM / Replacement Aftermarket |
| Condition | Brand New |
| Inspection | Dimensional check, gear meshing test, torque sampling inspection before shipment |
This Reducer Assembly 14279931 is compatible with SANY SR360HC10, SR235W, SR235S, SR405RH10 rotary drilling rig.
If your machine model is not listed, please provide part number, machine serial number and clear photos of the old reducer and its mounting location, so our technical team can double‑check fitment before you place an order.
| SR360HC10 | SR235W | SR235S | SR405RH10 |
To ensure you get the exact‑matching Reducer Assembly, please provide the information below:
Our technical staff will complete compatibility verification and send you a formal confirmation

Averdyn provides genuine, OEM‑standard and premium aftermarket SANY rotary‑drill transmission spare parts. We carry out strict pre‑shipment quality inspection, offer competitive prices, professional parts‑matching support and stable international logistics. We help equipment dealers, repair workshops and construction fleet operators minimize machine downtime.

Reducer Assembly 14279931 is a core complete gearbox unit of the drive transmission system on selected SANY rotary drilling rigs. Inside this assembly, precision‑machined planetary gears, bearings and sealing parts work together to slow down hydraulic motor rotation and generate enough torque for drilling operations.
Rotary rigs frequently work on hard rock, gravel and muddy job sites with heavy shock loads. A reliable reducer assembly keeps drive movement smooth and protects upstream hydraulic motors from overload damage. This replacement gearbox unit follows original dimensional and mounting specifications. It can serve as an ideal spare part for scheduled overhaul or emergency breakdown repair, available for single‑unit purchase and bulk wholesale for fleet maintenance projects.
This product is commonly searched by international buyers with these synonyms: Reducer Assembly Gearbox Assembly Drive Reducer Unit Rotary drill rig gear reducer SANY rotary drilling rig reducer Replacement reducer assembly Aftermarket gearbox assembly Genuine reducer unit 14279931 spare part

We offer genuine, OEM, and high-quality aftermarket options with fast worldwide shipping. Simply provide your part number or machine model, and our experienced team will help verify compatibility and recommend the correct replacement.
| ✔ OEM Quality | ✔ Fast Worldwide Shipping | ✔ Technical Support | ✔ Secure Packaging | ✔ Export Experience |
Averdyn also supplies matched transmission and hydraulic spare parts: reducer seal kits, bearing sets, hydraulic drive motor, filter elements and other rotary‑rig maintenance components.
| Spacer Sleeve | Wear Pad | Boom Pin | Hydraulic Cylinder | Seal Kit |
Three quality grades are available for selection: Genuine original spare parts, OEM‑standard replacement assemblies and heavy‑duty aftermarket repair parts. Please state your quality requirements so we can confirm available inventory.
Customers may choose genuine, OEM or aftermarket versions with different price levels and lead‑time arrangements, whether you buy one single unit or large‑volume fleet orders.
It lowers the rotating speed from the hydraulic drive motor and greatly increases output torque. It delivers sufficient driving power for rig working mechanisms while absorbing part of impact loads during drilling.
Submit part number 14279931, your full rotary‑drill model, machine serial number and photos of the old reducer and its installation area. Our engineering team will verify fitment.
This reducer assembly fits four rotary‑drill models: ‑ SR360HC10 ‑ SR235W ‑ SR235S ‑ SR405RH10 It is not suitable for other unlisted excavator or port‑machinery models.
Typical warning signs include abnormal grinding or knocking noise, insufficient output torque, slow mechanism movement, oil leakage from gearbox seals, excessive vibration and mechanism jamming.
Follow the official SANY service manual for maintenance cycles. Units operating in high‑impact, hard‑rock drilling environments need more frequent inspection. Overhaul or full replacement is required once serious gear damage or persistent oil leakage occurs.
In‑stock items can be dispatched quickly. The final lead time depends on your order quantity, destination country and selected shipping solution.
Yes, worldwide delivery is supported. We can arrange express, air freight, sea freight and railway shipping services according to your requirements.
To ensure you receive the correct replacement part, please provide any of the following information:
Part Number 14279931
Machine Model SR360HC10 / SR235W / SR235S / SR405RH10
Serial Number Machine S/N
Product Photo Old part photo
Our technical team will verify compatibility before shipment to help ensure you receive the correct replacement part.
To ensure you receive the correct replacement part, please provide any of the following information:
|
📦
Part Number
14279931
|
🚜
Machine Model
SR285RW/SR205C10/ SR285RC/ SR265C10
|
🔢
Serial Number
Machine S/N
|
📷
Product Photo
Old part photo
|
Our technical team will verify compatibility before shipment to help ensure you receive the correct replacement part.
| 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 |
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