Manaras MGT Industrial Gearhead Trolley
The MGT is Manaras’s heavy-duty industrial gearhead trolley — a worm-gear machine with a drum-band solenoid brake, built for wide industrial sectional doors up to 40 feet.
The worm gear is what separates it from a belt-and-chain trolley. A 20:1 oil-bath worm reducer delivers torque at low speed without the reduction stack a lighter trolley needs, and it holds load better on a door that is not perfectly balanced.
Specifications
| Specification | Value |
|---|---|
| Model code | MGT |
| Type | Heavy-duty industrial gearhead trolley, solenoid brake |
| Horsepower | 1/2, 3/4, 1 and 1-1/2 HP |
| Gear reduction | 20:1 worm gear, oil bath |
| Output speed | 90 rpm (1/2 and 3/4 HP) · 66 rpm (1 and 1-1/2 HP) |
| Door width | Up to 40 ft |
| Drive | #41 chain |
| Brake | Drum-band solenoid brake |
| Enclosure | Nema 1 |
| Mounting | Ceiling, indoor only |
A note on this model’s cycle rating
Manaras publishes two different duty figures for this operator. Its website and the 2016 selection guide list 25 cycles per hour and more than 80 cycles per day, while the 2024-dated specification sheet lists 30 cycles per hour and more than 100 cycles per day. Both are genuine Manaras documents. The likeliest explanation is that the website has not been refreshed since the 2024 catalogue revision, but that is our reading, not a statement from Manaras.
We quote the 2024 sheet figure above and confirm the duty rating with Manaras before specifying the unit for a door. If your application sits near the limit, that confirmation is the whole ball game — ask us to get it in writing.
Reading the speed and horsepower together
The output speed changes with the motor, and that is the decision that matters on a wide door. At 1/2 and 3/4 HP the output is 90 rpm; at 1 and 1-1/2 HP it drops to 66 rpm. The larger motor is not simply faster — it trades speed for torque.
On a 40-foot door the honest question is not how quickly it opens but whether it opens smoothly and stops where it should every time. A wide door that slams or racks is a door that will need track and hardware work long before the operator wears out.
MGT or OTBH?
Both are trolleys with a solenoid brake, and they cover different ground.
- OTBH — heavy-duty commercial trolley, 25 cycles/hour and 80/day, 6.25 inches
of headroom, doors to 12 feet standard and 30 feet maximum.
- MGT — industrial worm-gear trolley, doors to 40 feet, up to 1-1/2 HP.
Pick the OTBH for a standard-lift sectional door in a commercial building where headroom is tight. Pick the MGT when the door is genuinely wide or heavy enough that a belt-driven trolley is working at its limit.
Key features
- 20:1 oil-bath worm gear reducer.
- Drum-band solenoid brake.
- #41 drive chain.
- Nema 1 enclosure; indoor ceiling mounting.
Authorized Manaras dealer in Metro Vancouver
CCGDS is an authorized Manaras dealer. On this line that matters more than usual, because Manaras does not sell a finished part number off a shelf — horsepower, voltage, frequency and enclosure are selected through the Operator Codes ordering system when the unit is built. Getting that string right the first time is the difference between a unit that drops in and one that goes back.
Manaras publishes no list pricing anywhere; every specification sheet directs the reader to inside sales. We quote from the current sheet for your opening rather than from a number found on a reseller page.
Installation, service and repair across the Lower Mainland
We install, service and repair Manaras commercial operators in Richmond, Vancouver, Burnaby, Surrey, Delta, New Westminster, Coquitlam, Langley and North Vancouver. Typical work: commissioning and limit setup on a new install, diagnosing a control board or input fault, replacing worn drive components, and adding safety devices — photo eyes, sensing edges, light curtains — to an operator already in service.
Call (604) 206-5727 to have a unit specified for your opening, or to book service on one you already run.