Torque Limiters

The more comprehensive the automation of machines and installationsa, the safer their operational functions needs to be. Blockages or overloads should never be cause for the destruction of operationally important components.  Stoppages must be kept to a minimum so that the production process continues as quickly as possible and without costly repairs.

RINGSPANN torque limiters are mechanical safety devices which disconnect the output from the input when a preset limit value has been reached. Thus they protect against damage and stoppage times caused by overload. 

Catalogue

  Catalogue No.45: Torque Limiter ( 2000 kByte)

Devices

Positive locking  - ratcheting

SIKUMAT with screw faces

+ Re-engagement automatically
+ high consistency of torque limiting over operating period
+ torque range  6 ...335 Nm
+ speed range 0...1500 1/min
+ high robustnesst

SIKUMAT with balls

+ Re-engagement automatically
+ high consistency of torque limiting over operating period
+ torque range 2,5 ...1800 Nm
+ speed range 0...3300 1/min
+ medium robustness

SIKUMAT with balls - backlash free

+ backlash free in both directions of rotation
+ Re-engagement automatically
+ Simple and backlash free fastening onto shaft with integral cone clamping
+ high consistency of torque limiting over operating period
+ torque range 5 ...740 Nm
+ speed range 0...4000 1/min
+ medium robustness

SIKUMAT with single rollers

+ Re-engagment synchronously after 360° automatically
+ high consistency of torque limiting over operating period
+ torque 5 ...1800 Nm
+ speed 0...1000 1/min
+ medium robustness

SIKUMAT with double rollers

+ Re-engagment synchronously after 360° automatically
+ very high consistency of torque limiting over operating period
+ torque range  7 ...10000 Nm
+ speed range 0...1500 1/min
+ medium robustness

SIKUMAT with balls  - backlash free, synchronous 

+ backlash free in both directions of rotation 
+ Re-engagment synchronously after 360° automatically
+ Simple and backlash free fastening onto shaft with integral cone clamping
+ high consistency of torque limiting over operating period
+ torque range 5 ...740 Nm
+ speed range 0...4000 1/min
+ medium robustness

Positive locking - disengaging 

SIKUMAT with single rollers

+ Re-engagment manually
+ high consistency of torque limiting over operating period
+ torque range  5 ...1800 Nm
+ speed range 0...5000 1/min
+ medium robustness

SIKUMAT with double rollers 

+ Re-engagment synchronously after 360° automatically
+ very high consistency of torque limiting over operating period
+ torque range  8 ...10000 Nm
+ speed range  0...4250 1/min
+ medium robustness

Positive locking - non disengaging 

Non disengaging - SIKUMAT with single rollers

+ output is fully driven even in case of overload, 
+ a limit sensor indicates the overload 
+ high consistency of torque limiting over operating period
+ torque range  5 ...1800 Nm
+ speed range 0...4000 1/min
+ medium robustness

Friction locking - slipping

RIMOSTAT- Torque limiter

+ output is driven with preset limit torque in case of overload, 
+ medium consistency of torque limiting over operating period
+ torque range  2 ...6000 Nm
+ speed range 0...13000 1/min
+ medium robustness

Belleville-spring Torque limiter

+ output is driven with preset limit torque in case of overload, 
+ low consistency of torque limiting over operating period
+ torque range 5 ...1800 Nm
+ sped range 0...4000 1/min
+ low robustness
+ low cost