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Commercial Electric Openers

Light Duty

Chamberlain LiftMaster model 3900 JACKSHAFT,

  • 24V system
  • ultra quiet wall mount opener rated up to 10 cycles per hour
  • safety sensor for interruption
  • cable tension monitor to eliminate cable throw
  • single button control station (no remote)
  • 2 year warranty on parts
  • lifetime warranty on motor

Medium Duty

Chamberlain LiftMaster model MH, operator is designed for use on small rolling doors, grilles and industrial sectional doors with high or vertical lift.

  • maximum recommended duty cycle: 12 cycles per hour.
  • shaft mount operator available in 1/2HP model in 115V
  • floor level chain hoist and electrical interlock for emergency manual door operation
  • first-stage heavy duty 4L V-Belt, second and third stages
  • adjustable friction clutch, #48 chain
  • 2 year warranty

Industrial Duty

Chamberlain LiftMaster model H, continuous-duty door operator is designed for use on rolling doors, grilles and industrial sectional doors with vertical or high lift.

  • shaft mount operator available in 1/2HP models in 115V or 575V
  • floor level chain hoist and electrical interlock for emergency manual door operation. heavy-duty 5L V-Belt
  • PosiLock mechanical holding break
  • adjustable friction clutch, #50 drive chain
  • 2 year warranty.

Additional Chamberlain accessories are available upon request. Please contact a sales representative today to discuss all options available.