Thread rolling mills are efficient machines for machining threads, splines, etc. In two-roll machines, the rolls rotate in a synchronized motion in the same direction, burnishing a thread or a spline on a cylindrical surface. Rolling threads or splines is more efficient and faster than cutting. Two-roll mills are used to make threads in solid materials, while three-roll mills are used to make threads on pipes. The machines TRM28-6,3A and TRM28-12,5 are blind machines and allow for making the thread with the plunge method. The remaining two-roll machines are through-feed devices - they have tilting rollers - which enables the thread to be made longer than the width of the tools.
Thread rolling mills are efficient machines for machining threads, splines, etc. In two-roll machines, the rolls rotate in a synchronized motion in the same direction, burnishing a thread or a spline on a cylindrical surface. Rolling threads or splines is more efficient and faster than cutting. Two-roll mills are used to make threads in solid materials, while three-roll mills are used to make threads on pipes. The machines TRM28-6,3A and TRM28-12,5 are blind machines and allow for making the thread with the plunge method. The remaining two-roll machines are through-feed devices - they have tilting rollers - which enables the thread to be made longer than the width of the tools.
| Technical data | Unit | Value |
|---|---|---|
| Maximum rolling force (end of threads) | [KN] | 125 |
| Maximum diameter of radial feed (end of threads) | [mm] | 60 |
| Maximum diameter of the axial feed (end of threads) | [mm] | 0 |
| Maximum pitch of radial feed (end of threads) | [mm] | 5 |
| Maximum axial stroke (end of threads) | [mm] | 0 |
| Outer die diameter | [mm] | 170 |
| Die width | [mm] | 150 |
| Die bore diameter | [mm] | 54 |
| Spindle axis distance | [mm] | 130 - 230 |
| Spindle speed | [rpm/min] | 16 - 63 |
| Spindle tilt angle | [°] | 0 |
| Rolling - feed value (stepless) | [mm/s] | 5 |
| Rolling - shift / stroke | [mm] | maks. 20 |
| Rolling time | [s] | 0 – 60 |
| Total power | [kW] | 5,2 |
| Box dimensions (LxWxH) | [mm] | 1620x1260x1510 |
| Weight | [kg] | 2000 |