Overhead Door

The overhead door has a uniform cooling and warming effect according to the change in outer environment temperature. The door is variously used in large-scale factories, fire stations, and the like, and is an automatic door widely used according to the scale.


  • The material of door is rigid by being charged with zinc color steel sheet and poly urethane, and is semi-permanently used.
  • Contamination-resistant and corrosion-resistant
  • Luxurious exterior (forming comfortable building environment)
  • Excellent security effect

Component part

  • Motor (BOC-750)

    • Motor horsepower (KW): 0.25 / 0.75
    • Semi-permanent service life secured
    • Applying 3-phase AC motor and strong worm reducer
    • Door fall prevention function when spring is damaged
    • Applying motor direct-coupled type
    • Applicable to various door types (Standard / Vertical / High-lift)
    • Preventing slipping / maximizing motor efficiency
    • Strong manual chain function
    • Usable regardless of door size
    • Securing durability of manual chain (applying die casting pulley)
    • Automatically breaking current when manual chain operates / preventing accident
  • Controller (BOC-750S)

    • Various inverter control function
    • Perfect location control function
    • Applying single-phase 220V / various interlock function
    • Securing instrument durability
    • Providing various safety functions

Product component part

  • U-type truss wind pressure bar

  • various types of bearings


  • Sight glass

  • Spring

  • Spring corn

  • Botton hinge

  • Gasket

  • Hinge

  • Drum

  • Bracket


Product Specification

Division Specification Remarks
DOOR SIZE Minimum (WxH)1.5mx1.5m, maximum (WxH)11.7mx6m -
Panel inner⁄outer part aluminum polyurethane charged -
Panel thickness 40mm, 50mm, 75mm, 100mm -
Skylight Available of lighting and watching with double acryl -
Noise 15~20dB -
MOTOR power 3-phase, 220V, 0.4~0.75KW, 60HZ(optional) -
Control power Single phase AC220V, DC24V, 60HZ -