Operator
Dynamic Closures recommends Commercial Door Operators Model DJ 1/2HP and DHJ 1/2HP from LiftMaster. With a wide range of available options and configurations, these operators will meet and exceed your needs. If you require a different model, voltage, frequency, or if you have questions on accessories and options, feel free to contact us.
Model DJIndustrial-Duty Jackshaft Operator with Internal Door Lock Sensor
Model DJ is an industrial-duty jackshaft operator with an internal door lock sensor. It features a removable hinged electrical box cover, a continuous-duty high-starting torque motor, industrial ball bearings on the output shaft and a universal-mount frame design.
Model DHJIndustrial-Duty Hoist/Jackshaft Operator with Internal Door Lock Sensor
Model DHJ is an industrial-duty hoist/jackshaft operator with an internal door lock sensor. It features a removable hinged electrical box cover, a continuous-duty high-starting torque motor, a universal-mount frame design, industrial ball bearings on the output shaft and an emergency chain hoist with electric interlock.
Safety Features
It is essential to factor in safety when planning your overhead rolling security grille. We have options that are reliable, secure, and ADA-compliant.
Emergency Release
This interior-wall-mounted release is easily accessible and meets ADA requirements. When the pull handle is released, it will disengage the motor from the counterbalance barrel assembly and the door can then be operated manually. Returning the handle resets the grille/closure to normal operation.

Key Switch
This compact design is the standard for the retail industry. Constant contact provides secure operation for your rolling grille. (NEMA 1)

Reverse Sensing Edge
Recommended for motor operated rolling products. Mounted on the bottom bar, the sensing edge will stop and reverse the grille if an obstruction is encountered while it is closing.


Get StartedNeed help choosing a model for your project?
We're here to help, and go far beyond the usual standards. Talk to our team, send us your plans, or browse products on your own time.