LiftMaster Gearhead Trolley Operator
Gearhead Trolley (GT) style commercial door operators feature lubricated gears and are engineered for heavy-duty, high-cycle industrial applications. Built for reliability and long-lasting performance, these operators are ideal for demanding commercial environments. For optimal results, all LiftMaster Openers and Operators should be purchased through an authorized dealer and professionally installed.
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Connectivity
Stay connected and in control with MyQ® Technology. This system allows you to securely monitor and manage your commercial door operators and facility lighting from your smartphone, tablet, or computer, providing greater convenience and peace of mind.
Key Features
- Real-Time Alerts: Receive status updates via email or push notifications on your mobile device.
- Remote Access: Open, close, and monitor your doors from anywhere.
- Free Mobile App: MyQ® Mobile App is available at no cost, with no annual activation fees.
- Required Equipment: Requires the 828LM MyQ® Internet Gateway to connect to the MyQ Smartphone App.
Performance
Built for durability and high-cycle industrial applications, the LiftMaster Gearhead Trolley Operator delivers reliable, long-lasting performance with minimal maintenance.
Key Features & Benefits
- Dual Voltage Connections: Flexible installation with selectable voltage to meet job-site requirements. Single-Phase: 115V, 230V Three-Phase: 208V, 230V, 460V 575V available as a discrete model
- Control Function Selector Dial: Easily programs 7 wiring types, from constant pressure to close, to Timer-to-Close functionality.
- Continuous-Duty High-Starting Torque Motor: Handles demanding industrial applications; instant reverse and overload protection.
- Motor Removable Without Affecting Limit Switch Settings: Simplifies maintenance and reduces downtime.
- Adjustable Friction Clutch: Protects doors and the operator from damage in case of obstruction.
- Mid-Stop Feature: Allows partial opening to a preprogrammed position for energy and time savings.
- Maximum Run Timer: Stops or reverses the door if closing exceeds the expected time, preventing damage.
- Delay-On-Reverse Circuit: Reduces wear by preventing abrupt reversals.
- 3-Button Control Station with Maintenance Alert System (MAS): Provides open/close/stop functions and notifies when routine maintenance is required.
Durability & Build Quality
- Available in ½, ¾, 1, and 1½ HP; single- or three-phase, capacitor start on single-phase.
- Factory preset to C2 wiring: momentary contact to open/stop, constant contact to close.
- Heavy-duty gear system: first-stage 10:1 gears in oil bath, 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.
- Standard brake; #41 trolley roller chain included.
- NEMA 1 electrical box, 11-gauge steel frame with durable powder coat finish; all sprockets drilled and pinned to shafts.
Warranty
- Comes with a two-year warranty for reliable performance and peace of mind.
Safety and Security
Protecting users and your facility is a top priority with the LiftMaster Gearhead Trolley Operator.
Key Features
- UL 325 Compliance: All commercial door operators meet UL 325 standards, requiring either constant pressure to close or a primary external monitored entrapment protection device.
- Security+ 2.0™: Provides enhanced security by sending a new code with every click, ensuring the door opens only for authorized users.
- Timer-To-Close: Automatically closes the commercial door after a preset time, offering added security and peace of mind.
- Emergency Disconnect: Allows the operator to be disconnected for manual door operation in emergencies, ensuring safety and accessibility.
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What is the LiftMaster Gearhead Trolley Operator used for?
The LiftMaster Gearhead Trolley Operator is built for heavy‑duty commercial and industrial door applications, providing durable, mechanically driven operation for high‑cycle usage.
How does a gearhead trolley operator differ from other operator types?
Unlike belt or chain drives, gearhead trolley operators use lubricated gears, offering robust mechanical durability and reliable performance—ideal for environments with frequent use and demanding conditions.
Can the Gearhead Trolley Operator handle high‑traffic usage?
Yes — it’s engineered for high‑cycle operation, making it suitable for facilities with constant door movement such as warehouses, loading docks, and industrial access points.
Is professional installation required for this operator?
Yes, LiftMaster recommends that all openers and operators be purchased through an authorized dealer and professionally installed to ensure safety, compliance, and optimal performance.
What safety features are included with the Gearhead Trolley Operator?
The operator complies with UL 325 safety standards and can be paired with safety devices such as photo eyes and entrapment protection to help prevent accidental closure on people or objects.
Can the Gearhead Trolley Operator be used with remote monitoring systems?
Yes when integrated with MyQ® Technology and the 828LM MyQ Internet Gateway, you can monitor and control the operator remotely using the MyQ mobile app on a smartphone, tablet, or computer.
What maintenance does the Gearhead Trolley Operator require?
Routine maintenance, such as inspecting moving parts, lubricating gears (as recommended), and checking alignment, helps ensure long‑lasting performance, especially in high‑traffic settings.