GREATER STRENGTH STARTS WITH THE THREAD
Industry-specific axial thread rolling systems – for the production of precise, strenth- and surface-optimised threads on high-strength tension wires in railway sleepers.
APPLICATION
- Tension bolt – Thread M10.3 × 1.5 (special profile), length 60 mm
- Ribbed steel – tensile strength approx. 1.700 N/mm²
- The thread rolls are specifically designed for this application
YOUR ADVANTAGES
- Increased output thanks to thread rollers specifically designed for this application
- High productivity and long tool life
- Optimized cost-effectiveness
- Process-reliable series production
- Sustainable, chip-free technology
- Increased component strength
- Low workpiece costs
THE THREAD ROLLS ARE SPECIALLY DESIGNED FOR THIS APPLICATION
- High-precision thread rolls
- Precise dimensional and profile accuracy
- Consistent thread quality
- High reproducibility
Another example of the use of threads on tension wires in railroad ties:
Axial rolling system RR22-2
When precision, efficiency, and reliability come together, real success stories emerge. Thanks to newly designed thread rollers, we are increasing output to around 45,000 parts per roller set—while simultaneously reducing tooling costs and maximizing process reliability. The result: greater performance, greater stability, and a noticeable advantage in production.
Solution
Application:
- Tension bolt, M10.2 × 1.5 special profile, length: 60 mm
Material:
- Rebar steel
(tensile strength ca. 1300-1700 N/mm2)
Current process:
- Thread rolling
- 30,000 pieces per set of rolls
Customer request:
- Tool life improvement
Solution
- Changeover to axial rolling system RR22-2
- To optimize the tool life, the thread rolls were specially designed for the application
- Rolling speed 25 m/min
- Speed 780 rpm
- Processing time 3.15 seconds
Customer Benefit
Process:
- Increase in output due to the newly designed thread rolls to approx. 45,000 per set of rolls
- Increased process reliability
Cost reduction:
- Lower tooling costs