Manaras Models We Service
We work on every current Manaras commercial operator. The tables below summarize the key specifications for each variant so you can identify the unit on your door.
Opera Series Jackshaft Operators
| Model | Mount | HP | Voltage | Key Feature | Max Door Weight |
|---|---|---|---|---|---|
| OMH | Jackshaft | 1/2 | 115/230V | Entry-level medium duty | 400 lb |
| OMJ | Jackshaft | 1/2 | 115/230V | Integrated reversing clutch | Medium commercial |
| OPH | Jackshaft | 3/4 | 115/230V | Hoist-a-Matic® brake | 600 lb |
| OPJ | Jackshaft | 3/4 | 115/230/460V | 1Ø or 3Ø, high torque | 600 lb |
| OSH | Jackshaft | 1 | 115/230/460V | Integral solenoid brake | 900 lb |
| OMT | Jackshaft | 1/2 | 115/230V | Variable speed, high-cycle | High-cycle doors |
Opera Series Trolley Operators
| Model | Drive | HP | Voltage | Key Feature | Max Door Height/Weight |
|---|---|---|---|---|---|
| MSJ | Chain | 1/2 | 115/230V | Standard commercial duty | 14 ft height |
| OTH | Chain | 3/4 | 115/230/460V | 1Ø or 3Ø, higher torque | 600 lb |
| OTBH | Chain | 3/4 | 115/230V | Solenoid brake, position hold | Inclined/unbalanced doors |
MEGA Series Jackshaft Operators
| Model | Mount | HP | Voltage | Key Feature | Max Door Weight |
|---|---|---|---|---|---|
| MEGA 1000 | Jackshaft | 1/2 | 115/230V | Entry-level, 24+ cycles/day | 400 lb |
| MEGA 2000 | Jackshaft | , | , | Mid-range, most common in Vancouver warehouses | , |
Typical Applications
Manaras operators are the standard choice for high-ceiling warehouses, industrial loading docks, and cold-storage facilities throughout BC. Jackshaft models (OMH, OPH, OSH, MEGA series) mount on the torsion shaft, preserving full overhead clearance , critical where overhead cranes, sprinkler lines, or HVAC ductwork occupy ceiling space. Trolley models (MSJ, OTH, OTBH) suit commercial sectional doors up to 14 ft high where ceiling mounting is practical. The OMT high-speed unit is specified for high-frequency docks where cycle time directly impacts throughput.
What Fails on Manaras Operators , And How We Fix It
- Brake wear on OPH, OSH, OTBH: Hoist-a-Matic® and solenoid brakes wear with heavy cycling. We replace brake discs, solenoids, and adjust air gaps to spec.
- Reversing clutch slip on OMJ: The integrated clutch protects the drivetrain but can wear prematurely on misaligned doors. We rebuild or replace the clutch assembly and realign the door.
- Limit switch drift: Vibration on industrial doors shifts mechanical limits. We recalibrate and, where needed, upgrade to non-contact rotary encoders.
- Control board failure: Power surges and moisture kill logic boards. We stock Opera and MEGA control boards and program them on-site.
- Chain and sprocket wear on trolley units: MSJ, OTH, and OTBH chain drives stretch over time. We replace chain, sprockets, and tensioners as a set.
- Gearbox noise and seal leaks: Heavy-duty jackshafts (OPH, OPJ, OSH) see gearbox wear under continuous duty. We reseal or swap gearboxes using OEM parts.
- Wiring and photo-eye issues: Damaged conduit runs and misaligned safety eyes are the most common call-outs , usually fixed in under an hour.
Choosing Between Models
If you are specifying a new operator or replacing a failed unit, the decision comes down to three factors:
- Mounting space: Jackshaft when ceiling clearance is needed; trolley when the ceiling is open and the door is under 14 ft.
- Door weight and cycle count: OMH/MEGA 1000 for doors up to 400 lb at standard cycles. OPH/OPJ/OTH/MEGA 2000 for doors up to 600 lb. OSH for doors up to 900 lb or where drift on power loss is a safety hazard.
- Power supply: Single-phase (115/230V) is standard in most BC commercial buildings. Three-phase (460V) is available on OPJ, OTH, and OSH for larger facilities with 3Ø service.
We quote every project based on the specific door, mounting conditions, and electrical supply , there is no flat-rate pricing for commercial operators.
Parts and Accessories We Stock
Our service trucks carry the highest-failure items for the Opera and MEGA lines: brake assemblies (Hoist-a-Matic® and solenoid), reversing clutches, control boards, limit switch assemblies, chain and sprocket kits, gearbox seals, and photo-eye sets. For less common parts , gearboxes, motor windings, specialty sprockets , we order direct from the Quebec factory with typical lead times of 2 to 3 business days.
Getting Service in Metro Vancouver
We cover Richmond, Vancouver, Burnaby, Surrey, Delta, New Westminster, North Vancouver, West Vancouver, and the surrounding municipalities. Same-day emergency service is available for doors stuck open or closed at loading docks. Preventive maintenance contracts (quarterly or semi-annual) include brake inspection, limit verification, lubrication, and safety-system testing , recommended for high-cycle doors and any site where a failure halts operations.
Call 778-873-7282 to schedule a repair, request a quote on a new operator, or set up a maintenance plan.
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