ELECTROMAGNETIC CLUTCHES AND BRAKES

Construction and mode of operation

Electromagnetic clutches and brakes from SUCO are, among other things, notable for straightforward design and ease of installation.

When these clutches and brakes are correctly selected, they are trouble-free, require no maintenance, and are extremely reliable. SUCO clutches are dry running clutches.

In order for them to operate correctly, grease and oil must be kept away from their friction surfaces.

These electromagnetic clutches and brakes can be installed on flanges or shafts. Flange-mounted versions require a suitable flange surface. The magnet component of the shaft-mounted models must be secured against rotation. The torque support must not be rigidly fixed.

Electromagnetic clutches and brakes require a DC power supply. They normally operate on a 24 VDC supply, but can also be supplied for other voltages (6, 12, 48 and 190 VDC). As standard, the power supply is via a 2-core cable 0.4 m long. Other cable lengths and connectors are available on request.

Due to their simple, modular design, electromagnetic clutches and brakes are easy to select.

The standard form of output is an axial drive with a bore and keyway, which passes through a flange. Variants are shown on subsequent pages. Customer-specific versions are available on request. Several examples of customer-specific versions are shown following the standard models.

Fields of application

Among many other applications, SUCO electromagnetic clutches and brakes are used in construction machines, agricultural machinery, machine tools, pumps and compressors, centrifuges, belt conveyors and cleaning machines.

Electromagnetic clutches The stator body (1) contains the field coil (2), which is a copper coil cast in synthetic resin. The clutch is activated by applying a direct current to the field coil. This creates a magnetic field (red), which electromagnetically attracts the armature disc (4) towards the input drive hub (7) with its friction lining (3), and so allows torque to be transmitted from the input side to the output. The axially-located output drive hub (6) separates from the input side when the current is cut off. A return spring (5) ensures that the armature disc separates from the input hub.

Electromagnetic brakes Electromagnetic brakes work in a similar manner. The stator body (1) contains the field coil (2), which is a copper coil cast in synthetic resin. When current is applied, a magnetic field (red) is created, which attracts the armature disc 4 towards the friction lining (3), and so transmits a braking torque to the output hub (6). When the current is cut off, the return spring (5) pulls the armature disc back to its original position.