Spiral expander rollers

Wire profile

T-Profil 5×5 – 1.4571

I-Profil 7×3 – 1.4301

Right-hand or left-hand version

Sample drawing of a standard expander roller

Screw pitch


4 x 12 = 48 mm – 4thread
4 x 24 = 96 mm – 4thread
3 x 12 = 36 mm – 3thread
3 x 24 = 72 mm – 3thread

Radial run-out tolerance up to 0,5 mm
Finishing: polishing
Standard diameters = 80 – 220 mm