Electric cylinders essentially comprise the CASM linear unit (with a lead screw or ball screw) housed in an extruded casing and a SIMOTICS S-1FK7 servomotor attached to the linear unit by means of an adapter kit.

The motor can be mounted on the linear unit in two different ways:

• Axial mounting – see first picture beneath Overview:
  Motor is attached using an axial adapter kit (containing all the necessary parts including the coupling)
• Parallel mounting – see second picture beneath Overview:
  Motor is attached using a parallel adapter kit (containing all the necessary parts including timing pulley and toothed belt).

Depending on the linear unit and SIMOTICS S-1FK7 motor used, higher forces can be obtained with the axial arrangement option than with the parallel arrangement driven by a toothed belt.

The SIMOTICS S-1FK7 motor is normally attached to the linear unit by the user by means of the appropriate adapter kit, see SKF documentation (link). The adapter kit is included in the scope of supply of the linear unit.

A fully pre-assembled electric cylinder, comprising the CASM linear unit, the SIMOTICS S-1FK7 motor and the adapter, is also available on request. Please refer to the technical specifications or follow the link below:

http://www.skf.com/casm