search button

RHX® Heavy Duty Commercial Operator 

rmx operator
The UL 325 2010 compliant RHX® heavy duty commercial operators from Overhead Door Corporation provide easy and reliable operation for the most stringent applications. This functionality comes from many innovative, state-of-the-art performance features.

Additional accessories for the RHX operator are sold separately.


A wide variety of mounting options are available to fit any application including:
Sectional doors: Standard trolley, side mount trolley, and dual trolley applications. Side mount and center mount chain couple or direct couple to the door shaft with hoist. Hoist models are left or right-hand adjustable in the field. All models come standard with the DC brake system.
Rolling steel doors: With hoist, front of hood, top of hood, bench mount and wall mount applications. Hoist models are left or right-hand adjustable in the field. All models come standard with the DC brake system.

Continuous duty motor available in 1/2, 3/4, 1 and 3 horsepower, single or three-phase. Totally enclosed non-ventilated (TENV) construction and totally enclosed fan cooled (TEFC) construction units are available as options. 3 horsepower models come standard with (TEFC) construction.

On board radio receiver
This standard feature can add radio functionality to every job with no additional cost for the receiver. Stores up to 250 CodeDodger® transmitters including the commercial dual frequency cycling versions.

Drive reduction
Primary reduction is worm gear running in oil bath. Secondary reduction is by chain and sprocket.

Mechanical brake system
24V DC disc brake. Fewer mechanical parts for improved reliability.

Clutch (standard with trolley; optional with hoist)
Adjustable disc-type helps protect door and operator from major damage should the door meet an obstruction. (Included in 14 and 26 RPM direct couple mounting kits)

Cycle counter
LCD (Liquid Crystal Display) clearly indicates the exact number of cycles logged for easy maintenance support.

Trolley rail assembly
High strength 2 inch rolled angle for added strength and durability.

RHX® operator features a 2-year limited warranty. See installation manual for complete limitations and details.

Easy limit setting with LimitLock®
An electro/mechanical limit sensor that makes it easy to set and maintain limits.

Voltage freedom with Voltamatic®
One unit for single phase voltages (115/208/230V), one unit for three phase voltages (208/230/460V) and one unit for three phase 575V.

Extra door system durability with Progressive Braking*
DC brake system brings the door to a soft stop for less wear and tear on the system.
* Patents # 6,737,823 and 6,388,412



RHX® Trolley – Sectional Door
- standard, side mount or dual trolley

RHX® Hoist – Sectional Door
- side mount, center mount, chain or direct couple

RHX® Hoist – Rolling Steel
- front of hood, top of hood, bench mount or wall mount

All RHX® Heavy Duty models available in:
1/2, 3/4, and 1 HP:
Single phase 115/208/230V
Three phase 208/230/460V
Three phase 575V
RHX® 3 HP:
Three phase 208/230/460V
Three phase 575V

Direct coupling (optional on sectional doors only)
Provides fast, easy installation and prevents chain slacking. Available as on optional kit for sectional side/center mount and hoist units. For sectional, options include:

14 RPM kit
26 RPM kit

Adjustable shaft
Output shaft of the optional direct coupling kits can be moved from one side to the other, providing flexible installation options.

NEMA 4/4X operators
Available for wet, dusty and corrosive environments.

New CodeDodger® commercial dual frequency cycling transmitters
Available in 1, 2, 3, 4-button and Open/Close/Stop versions. Automatically operates at both 315 and 390 Mhz every time a button is pressed.

Support Documents

Initial Set Up Programming | Standard or Heavy Duty Commercial Operator

Reversing Device Set Up on Commercial Door Operators

How to Add or Remove Transmitters on Commercial Door Operators

Share This Web Page: