YSLA Bersatu Sdn. Bhd. partners with Danobat to deliver advanced underfloor wheel lathe (UWL) solutions for efficient and precise wheel reprofiling of railway rolling stock.
Danobat underfloor wheel lathes are designed to restore wheel profiles without the need to remove wheelsets from the vehicle, significantly reducing downtime and improving maintenance efficiency. These systems are widely adopted in modern railway depots to ensure optimal wheel condition, safety, and ride quality.
Overview of Solutions
Danobat UWL systems provide high-precision machining directly on installed wheelsets, enabling fast and cost-effective maintenance operations. The systems are suitable for a wide range of rolling stock, including metro trains, light rail vehicles, passenger coaches, and locomotives.
Key Features & Capabilities
- In-Situ Wheel Reprofiling:
Eliminates the need to dismantle wheelsets, reducing maintenance time - High Precision Machining:
Ensures accurate wheel profile restoration for improved performance and safety - Automated Operation:
Advanced control systems for efficient and consistent machining processes - Reduced Downtime:
Minimizes service interruption and increases fleet availability - Flexible Configuration:
Adaptable to different track gauges and depot layouts





BENEFITS
- UWL range for all vehicle types:
- Tram
- Metro
- Commuter
- High Speed
- Locomotive
- Fully automatic machining process
- Smart machining: reduces cycle time, increases the process reliability and safety and extends the life of the wheels within a railway fleet.
- Conceived to operate with only one operator
- Ease of use: User-friendly interface for an intuitive operation that assists the operator and helps in optimizing machining processes.
- Optimized layout and pit configuration
- Designed for best ergonomics and ease of maintenance.
TECHNICAL DATA
| DLR | DHD | DHD+ | ||
| WHEELSET CHARACTERISTICS | ||||
| Track gauge | mm | 1000 to 1676 | 1000 to 1676 | 1000 to 1676 |
| in | 39.5 to 66 | 39.5 to 66 | 39.5 to 66 | |
| Wheel Ø | mm | 350 to 1250 | 350 to 1250 | 350 to 1250 |
| in | 14 to 49.5 | 14 to 49.5 | 14 to 49.5 | |
| Profile width | mm | 75 to 150 | 75 to 150 | 75 to 150 |
| in | 2.95 to 6 | 2.95 to 6 | 2.95 to 6 | |
| MACHINE CHARACTERISTICS | ||||
| Main drive power | kW | 4×9 | 2×30 | 2×30 |
| hp | 5×12 | 3×40 | 3×40 | |
| Chip section | mm2 | 6 | 10 | 10 |
| in2 | 0.009 | 0.015 | 0.015 | |
| MACHINE ARQUITECTURE | ||||
| Single | — | √ | √ | √ |
| Tandem | — | √ | √ | √ |
| Variable track gauge | — | √ | √ | √ |
EQUIPMENT
Clamping Solutions
A) Externally mounted axle-boxes
B) Internally mounted axle-boxes
C) Between Centres

Turning
1) Wheel Profile
2) Internal faces
3) External faces
4) Wheel mounted brake-disc facing
5) Axle mounted brake-disc facing
6) Wear grooves

