Spring Pins
SoRoTo Spring Pins spare the gears and the drum
The mixing arms of a SoRoTo® Forced Action Mixer is lowered on the output shaft where 4 spring pins are attached (only 2 on older models). The spring pins spare the gear motor and the drum if something gets stuck in the machine. The spring pins break when overloaded.
Spring Pins
Gear Protection Component
Four pins (two on older machines) secure the mixing arms to the output shaft and act as the designated weak point under overload.
Breaks Before the Gears
When the mixer jams — stone trapped, arm locked — the pins break first, protecting the gearbox from more expensive damage.
4 Pins Standard, 2 on Older Machines
Newer SoRoTo® Forced Action Mixers use four spændstifter; older machines use two.
Significantly Cheaper Than Gear Replacement
A deliberately sacrificial component — replacing a broken pin costs a fraction of what gear repair does.
Gear protection
Breaks first so the gears don't
4 pins standard
2 on older machines
Sacrificial design
Intended to be the weak point
Cheaper than gear repair
The right part to break
