The Model LCO75 3/4 HP Deluxe Dual Lamp Garage Door Operator is Linear’s most powerful door operator yet. It can be used in light-duty commercial installations or in residential applications with heavy carriage house style garage doors. The LCO75 has a maximum duty cycle rating of 13 operations per hour; 50 operations per day, far more than other operator designs. The LCO75 can be used with Linear’s belt-drive or chain-drive rail systems in 7-foot, 8-foot, and 10-foot lengths (10-foot rails available in chain-drive only). The rails are pre-assembled and pre-tensioned for quick and simple installation. The standard “T-rails” can be converted to stronger “I-rails” with Linear’s bolt-on Carriage House Conversion Kits CHCR-7/8, CHCR-8, and CHCR-10. The LCO75 includes infrared safety beams, a 3-button Model MCT-3 transmitter, a lighted deluxe wall station with vacation mode radio disable switch and courtesy light control button.


  • All steel frame
  • Noise-reducing technology for quieter operation
  • Commercial grade rail system
  • Easy external limit adjustment
  • Quick release door arm for manual operation
  • Automatic reconnect trolley
  • Standard door speed is approximately 9 inches per second
  • Standard rail and chain assemblies for 8, 10, 12, and 14 foot doors
  • Motor thermal overload protection
  • Torque sensing reversing
  • Solid state control circuitry
  • Deluxe lighted wall station
  • 3-Button MegaCode transmitter
  • Built-in MegaCode format receiver
  • Includes infrared photo eye safety beam
  • Dual courtesy lights

Motor Warranty Lifetime
Belt Warranty Lifetime
Chain Warranty 5 yrs
Mechanical Parts 5 yrs
Electrical Parts 1yr
Max. Door Height 14 ft.
Overall Length with HBT7C/HCT7C 126.5″
Overall Length with HBT8C/HCT8C 141″
Overall Length with HCT10C 161.5″
Overall Length with HCI12 193.8″
Max. Duty Cycle 13 cycles/hour, 50 cycles/day


  • CHCR-1010-foot Carriage House Conversion Rail
  • CHCR-7/87-foot Carriage House Conversion Rail
  • CHCR-88-foot Carriage House Conversion Rail
  • HBT7C7-Foot Belt Drive Rail
  • HBT8C8-Foot Belt Drive T-Rail
  • HCI+22-Foot Chain Drive Extension I-Rail
  • HCI1212-Foot Chain Drive I-Rail
  • HCT10C10-Foot Chain Drive T-Rail
  • HCT7C7-Foot Chain Drive T-Rail
  • HCT8C8-Foot Chain Drive T-Rail
  • ACT-21A1-Channel Key Ring Transmitter
  • ACT-22A3-Channel Key Ring Transmitter
  • ACT-31B1-Channel Block Coded Key Ring Transmitter
  • ACT-31D1-Channel Block Coded Key Ring Transmitter & Prox
  • ACT-34B4-Channel Block Coded Key Ring Transmitter
  • ACT-34D4-Channel Block Coded Key Ring Transmitter & Proximity Tag
  • FT-1Radio Interference Field Tester
  • MCT-11-Channel Visor Transmitter
  • MCT-111-Channel Visor Transmitter
  • MCT-22-Channel Visor Transmitter
  • MCT-33-Channel Visor Transmitter
  • MDR/U1-Channel Plug-in Receiver
  • MDT-1A1-Channel Visor Transmitter
  • MDT-2A3-Channel Visor Transmitter
  • MDT-4A5-Channel Visor Transmitter
  • MDTKKeypad Transmitter
  • MT-1B1-Channel Block Coded Visor Transmitter
  • MT-2B2-Channel Block Coded Visor Transmitter