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Home Your Search 3 Commercial Door Operators Jackshaft
LJ8900W

LiftMaster Light Duty Jackshaft Door Op. for Sectional Doors

  • Ideal for smaller/lighter commercial doors with light duty cycle requirements
  • MyQ Technology Built-In Wi-Fi Real-Time Alerts
  • Smooth Start/Stop
  • Optional Accesories 877LM Keypad 827LM MyQ Remote LED light 485LM Battery Back-up 841LM Automatic Door Lock 480LMB Alternate Mounting Kit and LC-36A Light Curtain
  • Compatible remotes; 893MAX 891LM 893LM
Installation manualSell sheetBrochureGuide De Produit
LJH-311-3/4

Doorlec 3/4HP 115V 1PH Jackshaft Operator

  • Nema 4/12 now included (11/2025)
Technical information
LJ8950W

LiftMaster Light Duty Commercial Jackshaft Op. for Rolling Doors

  • Ideal for smaller/lighter commercial doors with light duty cycle requirements
  • MyQ Technology Built-In Wi-Fi Real-Time Alerts
  • Smooth Start/Stop
  • Optional Accesories 827LM MyQ Remote LED light 485LM Battery Back-up 841LM Automatic Door Lock 480LMB Alternate Mounting Kit and LC-36A Light Curtain
  • Powerful Add-Ons 811LM and KPW5/KPW250
PRO-J-5053-U-RH

Micanan 1/2HP 575V 3P Jackshaft Monitored ECB N1 Eyes Right Hand

  • On board receiver with antenna
  • Continuous duty industrial motor with overload protection
  • Heavy duty 5L V-belt
  • Adjustable friction clutch
  • Solenoid brake (optional PRO-JB) recommended for large doors
  • 3/4" permanently lubricated & sealed precision ball bearings on pulley shaft
    • .......more details
Pro J Manual Specification Sheet
MJ5011U

LiftMaster Medium-Duty Jackshaft Op 1/2HP 115V

  • The MJ door operator is designed for use on vertical lift sectional doors or small rolling doors and grilles.
  • Maximum recommended duty cycle: 12 cycles per hour
  • Floor level disconnect
  • Adjustable friction clutch
  • Heavy-duty solenoid actuated brake
  • Easily field converted for right or left mounting
    • .......more details
Installation manualSell sheet
GDI-LG910

GDI Jackshaft & Trolley JDMG-LG-2030 Nerma 1 UL325 Photo Eyes Extra

  • Low Headroom at 4-3/4" (Trolley)
  • Dimensions: 11.35" x 4.3" x 4.3"
  • Motor type: Brushless DC
  • Max cyles: Open/Cose per day = 3200
  • One operator can handle all AC voltages - Single phase and three phase
  • No maintenance GearMotor sealed stainless steel bearings no limit switches no belts or hydraulic cylinders to maintain
    • .......more details
HAML-WIRING-HARNESS

GDI Wiring Harness Length Per Foot G3343

  • If over 10' is required
OCS-PANEL

GDI Panel Buttons Open/Close/Stop N1/ N4 G3253

  • Power LED
OPJ-6114-M-N1

Manaras Heavy-Duty Jackshaft Op 1 HP 120V 1PH Monitored ECB w/N1 Photoeyes

  • An industrial operator designed for use on standard high and vertical lift sectional doors
  • Can also be used on rolling doors and grills
  • It incorporates a floor level disconnect mechanism for manual operation
  • 25 cycles per hour 100 cycles per day
  • Continuous-duty single phase capacitor start or 3 phase motor open drip proof
  • Mechanical brake
    • .......more details
JDC7S1BMC

LiftMaster MAXUM Jackshaft DC Commercial Op. w/BBU 700LB

  • Max door height: 40 ft. Max. Sectional doors up to 700 lbs. Rolling steel or insulated doors up to 450 lbs.
  • myQ Compatibility: Setup available for either myQ or myQ Facility
  • Operating Temperature: Without Heater: -4°F (-20°C) – 140°F (60°C). With Heater: -40°F (-40°C) – 140°F (60°C)
  • Heater sold seperately
  • Voltage: 120V/240V (1PH/3PH); 480V (3PH); 208V & 600V (3PH) available with transformer accessory
  • Motor Power: 24VDC
    • .......more details
JDC7S1BMC_Installation-manualJDC7S1BMC_Manuel-installationData sheetFiche TechniqueQuick connect guideGuide de connexion rapideOrdering guideSprocket recommendation
J751L5

LiftMaster Industrial-Duty Jackshaft 3/4 HP 115/230V 1Ph L5

  • Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
  • The operators are typically mounted to the wall when used with smaller sectional overhead doors with a vertical or high lift and mounted to the wall or the front of the hood when used with rolling doors and grilles.
  • J operators are attached to the door jackshaft to indirectly drive the door
  • MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
  • Security+ 2.0® safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you
Installation manualManuel d'installationSell sheetBrochure
MGJ-5011U-RH

LiftMaster Medium-Duty Logic Gear-Reduced Op. 1/2 HP 115V 1Ph Right Hand

  • MGJ is designed for use on rolling grilles and shutters.
  • Maximum recommended duty cycle: 12 cycles per hour.
  • Heavy-duty wormgear-in-oil-bath speed reducer
  • 3-button station for open/close/stop functionality
  • 315 MHz radio receiver is integral to the Medium-Duty Logic board
  • UL325-2010 Monitored Entrapment Capability (provides primary monitored entrapment protection through monitored photo sensors: either CPS-U or CPS-UN4 or a 4-wire monitored edge using the CPS-EI interface)
    • .......more details
Installation manualSell sheet
MGJ-5011U-LH

LiftMaster Medium-Duty Logic Gear-Reduced Op. 1/2 HP 115V 1Ph Left Hand

  • MGJ is designed for use on rolling grilles and shutters.
  • Maximum recommended duty cycle: 12 cycles per hour.
  • Heavy-duty wormgear-in-oil-bath speed reducer
  • 3-button station for open/close/stop functionality
  • 315 MHz radio receiver is integral to the Medium-Duty Logic board
  • UL325-2010 Monitored Entrapment Capability (provides primary monitored entrapment protection through monitored photo sensors: either CPS-U or CPS-UN4 or a 4-wire monitored edge using the CPS-EI interface)
    • .......more details
Installation manualSell sheet
DJ501L5

LiftMaster Industrial- Duty Jackshaft Doorlock 1/2HP 115/230V 1Ph ***No Longer Available

  • Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
  • These operators include a door lock sensor to prevent damage to the door and operator caused by attempts to automatically open a locked door.
  • The operators are typically mounted to the wall when used with smaller sectional overhead doors with vertical or high lift and mounted to the side or the front of the hood when used with rolling doors and grilles.
  • DJ operators are attached to the door jackshaft to indirectly drive the door.
  • MyQ® Technology
  • Security+ 2.0®
    • .......more details
J505L5

LiftMaster Industrial-Duty Jackshaft 1/2 HP 575V 3Ph L5 ***Discontinued

  • Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
  • The operators are typically mounted to the wall when used with smaller sectional overhead doors with a vertical or high lift and mounted to the wall or the front of the hood when used with rolling doors and grilles.
  • J operators are attached to the door jackshaft to indirectly drive the door
  • MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
  • Security+ 2.0® safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you
J753L5

LiftMaster Industrial-Duty Jackshaft 3/4 HP 575V 3Ph L5

  • Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
  • The operators are typically mounted to the wall when used with smaller sectional overhead doors with a vertical or high lift and mounted to the wall or the front of the hood when used with rolling doors and grilles.
  • J operators are attached to the door jackshaft to indirectly drive the door
  • MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
  • Security+ 2.0® safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you
J501L5

LiftMaster Industrial-Duty Jackshaft 1/2 HP 115/230V 1Ph L5

  • Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
  • The operators are typically mounted to the wall when used with smaller sectional overhead doors with a vertical or high lift and mounted to the wall or the front of the hood when used with rolling doors and grilles.
  • J operators are attached to the door jackshaft to indirectly drive the door
  • MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
  • Security+ 2.0® safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you
PRO-J-5053-U-LH

Micanan 1/2HP 575V 3P Jackshaft Monitored ECB N1 Eyes Left Hand

  • On board receiver with antenna
  • Continuous duty industrial motor with overload protection
  • Heavy duty 5L V-belt
  • Adjustable friction clutch
  • Solenoid brake (optional PRO-JB) recommended for large doors
  • 3/4" permanently lubricated & sealed precision ball bearings on pulley shaft
    • .......more details
Specification Sheet
GDI-LG920

GDI Jackshaft & Trolley JDMG-LG-A830 Nema 4 UL325 Photo Eyes Extra

  • Low Headroom at 4-3/4" (Trolley)
  • Dimensions: 11.35" x 4.3" x 4.3"
  • Motor type: Brushless DC
  • Max cyles: Open/Cose per day = 3200
  • One operator can handle all AC voltages - Single phase and three phase
  • No maintenance GearMotor sealed stainless steel bearings no limit switches no belts or hydraulic cylinders to maintain
    • .......more details
LJH-353-1-RH

Doorlec 1 HP 575V 3PH Jackshaft Operator

  • Model LJH lasts an average of 10 million cycles
  • Available with ⅓ HP to 1 HP single-phase or three-phase motor and is equipped with self-adjusting solenoid brake
  • LJH installation is universal regardless of side (left or right)
  • Speed is approximately 1.4 feet per second or about 0.3 meters per second
  • Comes equipped with a manual chain hoist