Electric Door and Gate Operators

Trolley type-ceilling, Wall Mounts, B1-Parting, Sliding Doors Electric Operators

Trolley Type-Ceillling and Jack-Shaft-Wall Mount

Trolley Type-Ceillling and Jack-Shaft-Wall Mount

Sliding Gate
Electric Operators

Swing Gate
Electric Operators

Trafic control barriers
To control of vehicular traffic in private and public parking areas.

Rolling &Fire Doors
Rolling Service Doors & Fire Doors. Jack Shaft - Wall Mount

Different accessories for your needs

Safety Devices
Reverse Systems and Sensor

Entry-Exit Devices
Loop Detectors, Card Reader and more

Operating Controls


Special applications


Model RDO is a newly developed, electric door operator with compact, cylindrical, state-of-the-art design, suitable for rolling curtain doors, rolling grilles and rolling rubber doors. Universal mounting right or left, can be installed horizontally in front of door, curtain or grille, eliminating the need for any sideroom. Ideally suited for installation in underground mine tunnels, subway stations, shopping malls, etc., because of its unique concept and noiseless operation.

Three Button Control:
Momentary contact type for open, close, stop. May be stopped in any position and door moved up or down from that position. Close button can be wired for constant pressure when specified. Control circuit: 24V. A.C. for user's protection, Class II.

Limit Switches:
Rotary type, friction free, oilite bronze cams and precision micro switches, for automatic stopping of door in open or close positions. Easily adjustable externally without tools.

Reversing Contactor:
Heavy duty type.

Planetary gear reducer 40:1 ratio, lubricated and sealed for life. Cast iron alloy housing 1" (2.54cm) output shaft. Door speed: 8" (20cm) per second approx.

3/4 H.P. (560W), 110V. or 220V. single phase, 1 H.P. (746W) 208V., 460V., 550V three phase.

Manual Overload Relay:
For overcurrent and under voltage protection. (Manual reset).

Disc type to prevent door from coasting and locking it in any position.

Chain Hoist:
Equipped with a built-in disconnect device which allows a person to open or close door by hand, from the floor, in the event of power failure, without having to remove the drive roller chain.

Sideroom Required:
See key plan page 16. For position 1 and 3: not required. For position 2 and 4: 21" (53cm).

Primed with rust-proof primer and spray painted in blue hammertone baked enamel.


Three Button Control:
Momentary contact type for open, close, stop. Fully guarded standard duty 250V. A.C. maximum. Screw type terminal. Control circuit 24V. A.C. for user's protection.

Motor Control:
Heavy duty reversing contactor, two sets of three pole contactors on a common frame, mechanically interlocked to prevent simultaneous closure, clapper-type armature with three point suspension, auxiliary contacts, SPDT or DPDT (as required) on each armature. Holding coils 24V. A.C. Contact rating: resistive: 15 amps @ 120V. A.C., 10 amps @ 240V. A.C., 5 amps @ 600 V. A.C.; inductive: 2 H.P. (1493W) max. Terminals: .25" (.63cm) quick connect. Mechanical life: over 10 million cycles.

Electrical Control Cabinet:
Factory pre-wired, made of 14 ga. C.R. steel, pre-formed EEMAC 1 enclosure, size: 8-1/4" x 5-3/4" x 5" (21cm x 15cm x 13cm) with removable cover for easy service and maintenance. Mounted on unit base with four zinc plated steel bolts. Control mounting plate can be removed without dismantling main enclosure.

Planetary gear reducer 40:1 ratio with steel alloy gears, heat treated hardened and ground for greater wear life. High speed taper roller bearings, double lip spring loaded seal to keep lubricant in and dirt out. The reducer housing is cast in design alloy, lubricated and sealed for life. Lubricant temperature: 125oF to -30oF. Output shaft: 1" (2.54cm). Door speed 8" (20cm) per second approx. Maximum lift capacity: 1364 lbs (620kg). Maximum door area: 560 sq. ft. (52m2).

Centrifugally-operated saucer type, spring loaded brake system, will stop motor and door when power is cut-off, preventing door from coasting and secure locking of door in closed position. Brake automatically releases when motor is energized.

Emergency Chain Hoist:
When pulled, will automatically engage the manual mode and door can be opened or closed manually in the event of power failure.

Rated for continuous duty (capacitor start on single phase) 3/4 H.P. (560W) 110V. or 220V. single phase, 1 H.P. (746W) 208V., 460V., 550V., three phase.

Limit Switches:
Rotary type friction free oilite bronze cams, travelling on 3/8" (0.95cm) threaded shaft which rotates on oilite bushings. Cams are adjustable externally by hand, without tools. Cams on their preset travel activate the micro switch to cut power of motor control in both open and close directions. Operating force on limit switch: 4 oz. (113.4g). Maximum contact separation: .020" (.05cm). Limit switch housing of die-cast zinc alloy with transparent polycarbonite cover.

Manual Overload Relay:
Protects motor from overcurrent and under voltage. Manual reset.

25 V.A. Step-Down Transformer:
120V., 240V. A.C. primary to 24V. A.C. secondary, Class II.
208V., 460V., 600V. A.C. primary to 24V. A.C. secondary, Class II.

Unit is factory pre-wired, colour coded and tagged.
Wiring diagrams are enclosed with each operator.
Operator is pre-run and tested before shipment.