LiftMaster Gearhead Slide Door Operator
GSD (Gearhead Sliding) operators are designed for heavy industrial, high-cycle sliding doors. Using lubricated gears, they provide reliable operation for single or bi-parting doors, similar to GT-style operators. All LiftMaster Openers and Operators should be purchased through a Dealer and professionally installed.
BY:
Connectivity
- MyQ® Technology allows secure monitoring and control of your sliding door operator and lights via smartphone, tablet, or computer.
- Receive email or push notifications to stay updated on your door’s status.
- MyQ Mobile App is free with no annual activation fees.
- Requires 828LM MyQ Internet Gateway to connect to the MyQ Smartphone App.
Performance
- Dual Voltage Connections allow selection of the required voltage within the phase to meet job-site requirements:
- Single-Phase: 115V and 230V
- 3-Phase: 208V, 230V, 460V
- 575V available as a discrete model (no field-selectable voltage)
- Heavy-Duty Worm Gear-In-Oil Gear Reducer for high-cycle, heavy industrial performance.
- Control Function Selector Dial allows easy programming of 7 wiring types, including constant pressure to close and Timer-to-Close.
- Continuous-Duty High-Starting Torque Motor for demanding industrial applications.
- The motor is removable without affecting the limit switch settings for easier maintenance.
- The adjustable friction clutch protects the door and operator from obstructions.
- Mid-Stop allows partial opening of the door to a preprogrammed position for energy and time savings.
- The Maximum Run Timer reverses or stops the door if the closing time exceeds the expected timeframe.
- Delay-On-Reverse Circuit reduces abrupt reversals, minimizing wear on the door and operator.
- 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and maintenance notifications.
- Continuous-duty high-starting torque motor with instant reverse and overload protection; available in 1/2, 3/4, 1, and 1-1/2 HP, single- or three-phase. Capacitor start on single-phase.
- Factory preset to C2 wiring: momentary contact to open and stop, constant contact to close.
- 5V DC NEC Class 2.
- 10:1 first-stage heavy-duty gears running in oil bath with cast iron housing; #41 chain second stage; #41 output chain on trolley.
- Sealed roller bearings in gear reducer; flange-mount industrial ball bearings on drive shaft.
- Brake standard on all GSD operators.
- NEMA 1 electrical box; heavy-duty 11-gauge steel frame with durable powder coat; all reduction sprockets drilled and pinned to shafts.
- #41 Trolley Roller Chain standard on all GSD operators.
- Two-year warranty.
Safety & Security
- UL 325 Compliance – All commercial door operators must be equipped with a constant pressure to close or equipped with a primary external monitored entrapment protection device.
- Security+ 2.0™ – Sends a new code with every click so the door opens only for authorized users, enhancing facility security.
- Timer-To-Close – Automatically closes the commercial door after a set period, providing added security and peace of mind.
- Emergency Disconnect – Allows manual operation by disconnecting the operator from the door in case of an emergency.
What Our
Customers Are Saying
Discover the largest garage door showroom in Houston! Stop by, meet our team, and explore the many styles and options we have on display.
What is a Gearhead Slide Door Operator (GSD)?
A GSD operator is a commercial door operator with lubricated gears, ideal for heavy industrial, high-cycle sliding doors, including single and bi-parting doors.
Can I operate the door manually during a power outage?
Yes, the operator includes an emergency disconnect that allows manual operation when needed.
What connectivity options are available?
MyQ® Technology allows you to monitor and control your door via smartphone, tablet, or computer. Alerts can be sent as push notifications or email.
Does the operator support different voltages?
Yes, dual voltage connections allow installation flexibility: Single-Phase (115V, 230V) and 3-Phase (208V, 230V, 460V).
How do I select the correct control function?
The Control Function Selector Dial enables easy programming of 7 wiring types, including constant pressure to close and Timer-to-Close.
Is the operator suitable for high-cycle industrial use?
Yes, it features a continuous-duty high-starting torque motor, heavy-duty worm gear-in-oil reducer, and industrial-grade components for high-cycle applications.
What safety features are included?
Includes UL 325 compliance, Security+ 2.0™, Timer-to-Close, and Emergency Disconnect for safe operation.