Stainless steel motor

The stainless-steel motor is the all-rounder of our motor product portfolio. Its high resistance against acids and chemicals makes it extremely robust even when used with aggressive substances, for example for cleaning or for sterilisation with hydrogen peroxide for hygienic applications. As it is waterproof according to protection class IP68, it can be operated underwater or in wet or dusty environments. It is classified with clean room class ISO 1 according to DIN 14644 and thus is applicable in all clean rooms. ATEX-certified by TÜV Süd with certificate II 2 G Ex h IIC T5 Gb X / II 2 D Ex h IIIC T100°C Db X, it is operable safely in all explosive areas of ATEX zone 1.

Our motors are operable in anti-clockwise and clockwise rotation and are resilient to standstill. Of course, they are oil- and silicone-free as standard.

Extremely efficient and high-performance, our radial piston motors provide high torques while consuming only a minimum of compressed air, making it the pioneering drive technology for the future. Our motors save energy and costs of up to 90% compared to other drives such as the vane motor.



For the food, pharmaceutical of healthcare industry, chemical- and acid-resistant, sterilizable with hydrogen peroxide.


Waterproof for an application with water and underwater.

ATEX safety

Certified with ATEX certificate II 2 G Ex h IIC T5 Gb X / II 2 D Ex h IIIC T100°C Db X by TÜV Süd.

Clean room class 1

Clean room classification 1 according to DIN 14644 optional.

Exemplary applications:

  • Food processing machines
  • Packaging machines
  • Filling plants and lines, breweries
  • Backery machines
  • Chocolate stirring machines
  • Milk collection technology
  • Milk processing
  • Machines in dusty environments like for example flour dust
  • Mills and bulk material transport systems

Options & accessories

Mounting angle

Motor with mounting angle for a quick mounting.

Mounting flange

For an uncomplicated and quick installation.

Bearing flange

Integrated bearing flange for high radial load.
Antriebswelle glatt oder mit Passfeder für Druckluftmotor-1

Drive shafts

Drive shaft smooth, feather key, customer-specific shaft optional.

Rev counter

Premounted inductive proximity switch with recording of 20 switching signals per revolution of motor.
Wartungseinheit für Druckluftmotoren

Maintenance unit

For supply air treatment for a long service life.


Our motors can be equipped with 3:1, 9:1 and 1:2 transmission.
Luftanschluss 90° für Druckluftmotor-1

Air connection 90°

Our motors are available with a 90° air connection made of stainless steel


Integrated orifice for speed limitation as overload protection.

Customised solutions

Due to our long-term experience, we are your reliable partner for customised solutions.


PTM Drive and stirring technology Brochure
Product brochure for download:
CAD files for download:

Assembly guide for download:

Overview compressed air motors

Learn more about our product portfolio of compressed air motors:

Leistungsstarke und energieeffiziente Druckluftmotoren-1

Please contact us:

If you would like to be advised on our products, our experts will gladly take care of your request:
+49 8134 / 25 797 0