Smooth, Adjustable Torque for Tension Control and Test Rigs
Merobel, in France, makes electromagnetic powder (EMP) brakes and clutches, permanent-magnet torque limiters and the electronics that control them – leaders in wire, cable and web tension control and in torque simulation on test rigs. Norman G Clark supplies and supports Merobel in Australia.
Not sure what you need? Call (03) 9116 9200 and talk it through with our team.
Solutions
What Do You Need to Do?
Wire & cable. Pay-offs, take-ups and winding of wire, cable and fibre.
Converting & printing. Unwinds and rewinds for paper, film and foil.
Packaging. Film and label tension on packaging machines.
Test rigs. Automotive and aeronautics torque simulation.
Hold Tension as a Roll Unwinds
A brake on the unwind keeps wire, film or paper taut as the roll gets smaller.
Control Speed and Torque Separately
A clutch on the rewind or in a drive line slips at a set torque.
Limit Torque Without Power
A permanent-magnet limiter slips at a set torque – no supply needed.
Load a Test Rig
Simulate variable torque on automotive and aerospace test benches.
The range
Merobel Products
Load a test rig
EMP Brakes
Electromagnetic powder brakes in 10 sizes, with fins, fans or water cooling.
2 – 1,000 Nm
Load a test rig
EMP Clutches
Powder clutches for drives where slip speed and torque must be set separately.
2 – 1,000 Nm
Limit torque without power
Torque Limiters
Permanent-magnet slip limiters – smooth, repeatable and no power supply.
0.06 – 85 Nm
How it works
How an EMP Brake Works
Torque you set with current.
Torque from Magnetic Powder
Between the rotor and the housing is a gap filled with fine magnetic powder. When current flows in the coil, the powder lines up along the magnetic field and binds the two together; the more current, the more torque. With no current the powder is loose and only a small residual torque remains.
Torque depends on current, not speed, so it can be set precisely and held while the unit slips continuously – which is what keeps tension steady as a roll changes size.
Why Merobel, through Norman G Clark
Tension Control Specialists
Wide Range
10 sizes from 2 to 1,000 Nm, with up to five cooling versions each.
Linear Control
Torque follows current – easy to control from a simple supply or tension controller.
Smooth and Quiet
No friction surfaces to grab or chatter, even at very low speed.
Local Support
Norman G Clark helps size the brake and cooling – call (03) 9116 9200.
Literature
Catalogues and Data Sheets
Catalogues
- EMP brakes catalogue
Through-bore brakes, sizes 20 to 10001 · PDF, 2.1 MB - EMP clutches catalogue
Through-bore clutches, EAT and ERAT · PDF, 1.3 MB - Torque limiters catalogue
LC permanent-magnet torque limiters · PDF, 413 KB
Talk to Us About Your Application
Tell us about the job – the machine, the conditions and what it has to do – and we’ll help you choose the right Merobel product.