Thread rolling machines are efficient machines for chipless processing of threads, splines, etc. In two-roll machines, the rolls rotate in a synchronized motion in the same direction, burnishing the thread or spline on the cylindrical surface. Rolling threads or splines is a more efficient and faster method than cutting them.
Thread rolling machines are efficient machines for chipless processing of threads, splines, etc. In two-roll machines, the rolls rotate in a synchronized motion in the same direction, burnishing the thread or spline on the cylindrical surface. Rolling threads or splines is a more efficient and faster method than cutting them. Two-roll mills are used to make threads in solid materials, while three-roll mills are used to make threads on pipes. The TRM28-6.3A and TRM28-12.5 machines are blind machines and enable threading with the plunge method. The remaining two-roll machines are pass-through devices - they have tilting rolls - which allows making a thread longer than the width of the tools.
| Technical data | Unit | Value |
|---|---|---|
| Maximum rolling force (end of threads) | [KN] | 460 |
| Maximum diameter of radial feed (end of threads) | [mm] | 110 |
| Maximum diameter of the axial feed (end of threads) | [mm] | 60 |
| Maximum pitch of radial feed (end of threads) | [mm] | 12 |
| Maximum axial stroke (end of threads) | [mm] | 8 |
| Outer die diameter | [mm] | 250 |
| Die width | [mm] | 160 |
| Die bore diameter | [mm] | 85 |
| Spindle axis distance | [mm] | 170 - 340 |
| Spindle speed | [rpm/min] | 16 - 90 |
| Spindle tilt angle | [°] | ±8 |
| Rolling - feed value (stepless) | [mm/s] | 5 |
| Rolling - shift / stroke | [mm] | maks. 30 |
| Rolling time | [s] | 0 – 60 |
| Total power | [kW] | 22,6 |
| Box dimensions (LxWxH) | [mm] | 2350x2300x2000 |
| Weight | [kg] | 7000 |