OMJ Models & Specifications
| Specification | Detail |
|---|---|
| Drive Type | Jackshaft (wall-mount) |
| Motor | ½ HP, 115V, Single Phase |
| Duty Cycle | 12 cycles/hour · 50 cycles/day |
| Manual Release | Standard disconnect (no Hoist-a-Matic®) |
| Origin | Made in Canada |
Where the OMJ Fits Best
The OMJ shares the same Canadian-made motor and electronics platform as the OMH but omits the Hoist-a-Matic® lifting mechanism. It’s the practical choice for light commercial sectional doors where an overhead chain hoist already handles manual operation during power outages, or where manual override simply isn’t required. You get identical reliability at a lower upfront cost.
Common Failures & How We Repair Them
- Standard disconnect wear: The manual release cable and handle can bind or fray over time. We replace the full disconnect assembly with OEM parts.
- Motor thermal overload: Exceeding the 12-cycle/hour rating trips the internal protector. We verify duty cycle, adjust limits, and replace the motor if windings are damaged.
- Control board faults: Power surges or moisture can damage the shared OMH/OMH logic board. We swap boards on-site and reprogram travel limits.
- Drive shaft & sprocket wear: Chain tension issues accelerate sprocket tooth wear. We realign, tension, and replace sprockets and chain as a set.
Because we service what we sell, our Richmond shop keeps OMJ-specific disconnect kits, logic boards, and motor packs on the shelf , most repairs complete in a single visit.
Choosing Between OMJ and OMH
If your door already has an overhead chain hoist for emergency operation, the OMJ saves money without sacrificing motor performance. If you need the integrated Hoist-a-Matic® so staff can manually raise the door from floor level during an outage, step up to the OMH. We’ll walk the site, confirm the hoist setup, and quote the right model per project.
Parts & Accessories We Stock
- OMJ/OMH logic boards
- Standard disconnect cable & handle kits
- ½ HP 115V single-phase motor packs
- Drive sprockets & roller chain
- Photo-eye sets & safety edge kits
Get OMJ Service Across the Lower Mainland
We install and repair the Manaras OMJ in Richmond, Vancouver, Burnaby, Surrey, and the entire Lower Mainland. Call 778-873-7282 for a project quote or emergency service.
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