Drive types

Properties and advantages of our torque motors

The torque motor equalises the speed differences between the travel drive and the reel drive without the need for a slip coupling. The motor can be operated for winding cables both when the system is at a standstill and when it is working in reverse (during cable unwinding). The heat which develops during the operation is dissipated via the housing surface or via external fans. The motors are equipped with holding brakes. Torque motors work as cage motors or slip ring motors with or without an external fan. Slip ring types require an additional resistor unit.

Performance and application fields of our torque motors:

Electrical connection: Simple (motor)
Torque control: -
Control options: -
High rotation: -
Rotation speed: max. 300 rpm
Moment of inertia: low
Low environmental temperature: standard up to -25° C, (lower than -25° with heating unit)
High environmental temperature: standard up to +40° C, higher temp. with additional deduction
Industrial/ outdoor environment: suitable
Ports:   suitable
Ship/Sea: suitable
Price/Performance: +

Torque control with frequency inverter drives

Our motorised cable reels with variable torque drives are used in particular for plants with long travel distances (i.e. gantry cranes), and proportionate small cable cross-sections (medium voltage cables). Our frequency inverter drive achieves precise speed and torque control of three-phase-current asynchronous motors or servomotors. Due to the constant pull on the cable, pulling forces can be minimised. Consequently, frequency inverter drives enable a longer cable lifetime as well as increased reliability of the whole cable reel system, especially for highly dynamic processes.

  • Horizontal cable payout with cable lengths up to 1000 m possible
  • Speed up to 200 m/min
  • Spiral winding cable reels, outer diameter 2500 – 9,500 mmAntrieb über Kegelradgetriebe und Drehstrom-Asychronmotoren
  • Drive via bevel gearbox and three-phase motorsAusgangsleistung zwischen 1.5 kW und 22 kW
  • Power outputs ranging from 1.5 kW to 22 kW
  • Slip ring body and cable type for low voltage up to 1 kV and medium voltage between 1 kV – 25 kV
  • Optional with fibre optic rotary joints for optical data transfer

 

Performance and application fields of our frequency inverter drives:

Electrical connection: simple (motor + fan)
Torque control: yes
Control options: yes
High rotation: +++
Rotation speed: max. 1450 rpm
Performance/ moment of torque: 0,75 kW (5 Nm) to 9,2 kW (60 Nm)
Moment of inertia: low
Low environmental temperature: standard up to -25° C, lower temp. with additional deduction
High environmental temperature: standard up to +40° C, higher temperatures up to +50° C with additional deduction
Industrial/ outdoor environment: suitable
Ports: suitable
Ship/Sea: less suitable
Price/Performance: +++

Properties and advantages of our hydraulic drives

Motorised cable reels with powerful hydraulic drives allow quick vertical stroke movements of up to 240 m/min as well as a maximum torque. Therefore, they are ideally suited as a reliable energy supply for spreaders and grippers, for example on mobile port cranes or for bridging great distances in the mining industry and for material handling. Both the motor and the holding brake are hydraulically powered, preferably via the hydraulic system that is attached to the driving device.

 

Performance and application fields of hydraulic drives:

Electrical connection: -
Torque control: -
Control options: by customer
High rotation: +++
Rotation speed: max. 3000 rpm
Performance/ moment of torque: up to 22 kW
Moment of inertia: low
Low environmental temperature: standard up to -25° C
High environmental temperature: standard up to +40° C, higher temp. up to +50° C with additional deduction
Industrial/ outdoor environment: suitable
Ports: suitable
Ship/Sea: suitable
Price/Performance: ++

Magnetic couplings in sizes 1.8 to 88

  • No wear of the magnet parts because of the contact-free and current-free magnetic coupling
  • Option of mechanically adjusting the torque of the permanent magnetic coupling by adjusting the air gap
  • Permanent magnetic coupling designed for 100% operational availability between -20 and +40 degrees Celsius
  • In order to prevent the cable from being moved when the drive is switched off, a return stop is fitted between the permanent magnetic coupling and the drive motor

 

Performance and application fields of our magnetic couplings:

Electrical connection: simple (motor)
Torque control: -
Control options: -
High rotation: ++
Rotation speed: max. 950 rpm
Performance/ moment of torque: 1,8 to 25 Nm
Moment of inertia: high
Low environmental temperature: standard up to -40° C (lower than -25° C with heating unit)
High environmental temperature: standard up to +40° C
Industrial/ outdoor environment: suitable

Ports:

suitable
Ship/Sea: suitable
Price/Performance: ++

Turbo couplings sizes 274 + 366

  • For cable and wire reels with vertical payout
  • Reels with a turbo coupling are especially suited for high travelling speeds which cannot be achieved with other, commonly available drive types
  • Suitable for port and on-board operation (e.g. on-deck version) acc. to the regulations of the ship classification societies
  • Used together with a commonly available, standard rotary current cage motor (IEC) or a direct current motor
  • Drive and turbo coupling are designed for continuous operation S1 (100% operating time)
  • The cable pull is almost constant across the entire winding length and only changes very slightly during unwinding, which means that the deposited cable is treated very gently
  • The torque that is required for pulling the cable can be changed easily by adjusting the oil filling in the turbo coupling
  • Cable unwinding is possible to both sides
  • An installed electrical spring-actuated brake prevents the line from unwinding itself when the system is switched off
  • If the device is blocked for whatever reason, the 100% slip of the coupling ensures that the cable is not subjected to any greater strain than in its regular operating state

 

Performance and application fields of our turbo couplings:

Electrical connection: simple (motor + brake)
Torque control: -
Control options: -
High rotation: +
Rotation speed: max. 750 rpm
Performance/ moment of torque: 20 Nm (274) to 30 Nm (366)
Moment of inertia: high
Low environmental temperature: standard up to -20° C
High environmental temperature: standard up to +40° C
Industrial/ outdoor environment: suitable
Ports: suitable
Ship/Sea: suitable
Price/Performance: ++