Microspeed Units

crane hoist manufacturer

  • Application of microspeed unit in a chain drive system
  • Microspeed unit
  • Application of microspeed unit in a chain drive system
  • Microspeed unit
Microspeed units differ from drives with speed stages and variable-speed drive systems. They are a combination of two or more brake motors linked by a mechanical gearbox. (The brake of the main motor is designed as a friction coupling, the brake of the creep speed motor acts either directly or via the gearbox of the complete drive). A number of speeds or whole ranges of speeds can be achieved by using pole-changing, slip-ring or DC motors and even further microspeed motors.
 
Benefits
  • Large speed ratios of up to 500:1 are possible.
  • Precise stopping with creep speed motor for rapid positioning. High repeat positioning accuracy.
  • Higher switching frequency compared to pole-changing motors.
  • Creep speed is constant and virtually independent of the load.