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Pneumatic clutches

Up to 30,000 Nm of torque and 120 mm maximum bore diameter.

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A friction or roller clutch featuring torque adjustment even during operation. The device allows for the engagement and disengagement of the driving and driven components via pneumatic or electrical impulse. It ensures low residual torque after disengagement. The torque setting is adjustable by varying the air pressure supply.

  • Simple and precise torque setting;
  • Combined transmission engagement/disengagement and torque limiting functions;
  • High reliability and repeatability of the torque setting;
  • Torque adjustment while in motion via pressure regulation;
  • Complete disconnection ensuring free rotation after disengagement;
  • Low residual torque on disconnected parts;
  • Models available with finished bores;
  • Supplied complete with machined and assembled transmission elements (plate wheels, pulleys, gears, etc.);
  • Available with various rigid or elastic couplings for in-line shaft transmission;
  • Shaft connection options include finished bore, locking assemblies, or other systems;
  • Corrosion-resistant versions available with specific surface treatments.
  • Machines with variable torque cycles;
  • Test benches;
  • Coilers and unwinders;
  • Transmission systems handling varied products;
  • Cut-to-length systems.
  • Engagement/disengagement of different product transmission lines;
  • Tension maintenance for wire/film coils;
  • Torque regulation based on format changes;
  • Gearmotor protection against all types of overload;
  • Complete transmission disengagement when necessary.
Contacts
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Innesto pneumatico a rulli fase

Roller phase pneumatic clutch "DSR/F/AP"

  • Roller transmission with 360° in-phase re-engagement (equidistant 30°, 45°, etc. available on request);
  • Free rotation for extended periods after overload (…/CS version);
  • Suitable for high rotation speeds;
  • Maintenance-free for high reliability;
  • Prepared for microswitch or proximity sensor installation to stop the drive;
  • Torque range: 5 – 30,000 Nm; Max. bore: ø120 mm.
PDF
instruction sheets
Innesto pneumatico a frizione

Friction pneumatic clutch "DSF/TF/AP"

  • Friction-based torque transmission;
  • Functions as a tensioner, brake, or torque limiter;
  • Continuous adjustment of torque setting;
  • Available with special friction linings for specific requirements;
  • Available in …/SI version to stop transmission after an overload;
  • Torque range: 3 – 875 Nm; Max. bore: ø65 mm.
PDF
instruction sheets

Electromechanical switch "EM"

  • Die-cast aluminum housing;
  • Protection rating IP57 (DIN 40050);
  • Available with 1 contact (EM1) or 2 contacts (EM2);
  • Adjustable lever end position;
  • Operating temperature range: -10°C to +85°C;
  • Voltage input options: 1.5A – 250 VAC; 5A – 24 VDC; 0.2A – 250 VDC;
  • Pre-travel: 0.7 mm
  • Over-travel: 4 ÷ 8 mm depending on setting (adjustable range of 6 mm)
PDF