All PTM-actuators are based on the rackand pinion principle, picture 2.
This fact is responsible for small dimensions.
For different mounting alternatives all PTMactuators can be mounted on three or four
mounting surfaces.
Rotation angles more than 185° are
available.
Our progressive working end position
damping starts working just about 10°
before reaching the end position by
throttling the exhaust air automatically. This
guarantees reaching the exact end position.
This excludes bouncing in the end position
even during air pressure variation.
A technically necessary backlash of 0,5° is
unvoidable at Mini-Actuators with rack-and
pinion principle.
Main characteristics of our actuators are
small dimensions, low weight and long
lifetime. The power transmission is placed
in the centerline of the rack piston to
guarantee a very long lifetime. There are
PTM-actuators which were returned for
repair only after 13 years of continuous
running.
The smallest Pneumatic Mini Actuator DA
0020 with rotation angle of 95° and a torque
of 20 Ncm, has the dimensions of only
20x20x43 mm and a weight of 0,050 kg.
These small dimensions and weights allow
you to increase the performance-weight
ratio of your robot or other applications.
