Residential
Electric Door and Gate Operators

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

Waterproof
Trolley Type-Ceillling and Jack-Shaft-Wall Mount

Explosion-proof
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

Accessories
Different accessories for your needs

Safety Devices
Reverse Systems and Sensor

Entry-Exit Devices
Loop Detectors, Card Reader and more

Operating Controls
 

Modifications
 

Special applications
 
 

GENERAL INFORMATION

GHX Jackshaft Worm Gear electric door operator has been designed primarily to operate large industrial type doors such as rolling curtains, multiplex, multiblade, vertical lift or any upward acting door in hazardous locations where flammable vapours, combustible dusts, or ignitable fibres or flyings may be present in the air in quantities sufficient to produce an explosion.

Explosion Proof Three Button Control:
Momentary contact type for up, down, stop. Operator may be stopped in any position and door moved up or down from that position. Down button can be wired for constant pressure when specified. Control circuit 24V AC for users protection.

Reduction:
Worm gear reducer, single stage, running in an oil bath, 40:1 ratio, C flange design, alloy cast iron housing, No. 50 roller chain and sprockets from operator shaft to door shaft. Door speed: 7" (18cm) per second approx.

Adjustable Automatic Friction Clutch:
Will protect door and operator in case of obstruction (optional at extra cost).

Chain Hoist:
Equipped with a disconnect device which allows a person to disengage the operator from the door and operate the chain hoist from the floor by hand in the event of power failure without having to remove the drive roller chain. Limit switches will not go out of adjustment when hoist is used.

Explosion Proof Limit Switches:
Rotary type, friction free with oilite bronze cams and precision micro switches, for automatic stopping of door in up and down positions, easily adjustable without tools.

Reversing Contactor:
Heavy duty type.

Explosion Proof Safety Interlock:
Electrical interlock switch automatically cuts off control circuit power in operator when chain hoist is in operation.

Mounting:
Left and right hand (must specify). Right hand shown.

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

Explosion Proof Motors:
3/4 HP (559.5W), 1 HP (746W), 1-1/2 HP (1119W) or 2 HP (1492W), 120V or 240V single phase, 208V, 230V, 416V, 460V or 600V three phase. 2 HP (1492W) not recommended on single phase motors. C.S.A. and U.L. approved.

Sideroom Required:
20" (50cm) minimum.

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



SPECIFICATIONS


Three Button Control:
Momentary contact type for open, close and stop, fully guarded, standard duty, 600V AC maximum. Screw type terminals. Explosion proof type for hazardous locations. Cast aluminium alloy housing for 7 D, 9 E, F, G, Class I, Group D, Class II, Group E, F and G, Class III, Division I and 2 areas. C.S.A. and U.L. approved.

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, coils 24V AC. Load contact amps resistive @ 120V AC 15 amps, @ 240V AC 10 amps, @ 600 V AC 5 amps. Terminals .250" (.625cm) quick connect; mechanical life 10 million cycles.

Reduction:
Worm gear reducer, single stage, running in an oil bath with 40:1 ratio, "C" flange design, alloy cast iron housing. Hardened and ground steel worm and alloy bronze gear for greater wear life. High speed taper roller bearings, double lip spring loaded seals to keep lubricant in and dirt out, alloy shafting hardened and ground for greater strength. Input RPM 1750, maximum 2 HP (1492W), output torque 1380in/lbs; overhung load 1100 lbs., output shaft dia 1", speed 44 RPM, door speed 7" (18cm) per second approx.

Explosion Proof Limit Switches:
Rotary type friction free oilite bronze cams, grooved and lock guided in a spring loaded formed galvanised steel plate. Cams are fitted on 5/8" d. x 10-3/4" I. (2.05cm x 26.88cm) C.R. steel shaft with N.F. threads which rotates in lubricated high speed ballbearings. Cams on their preset travel activate the micro switches to cut power of motor control in both open and close directions of door. Operating force on limit switches 4 oz. (113.4g) maximum, contact separation .020" (.05cm); terminations .250" (.625cm) quick connect.

Unit Chassis:
Heavy steel channel frame assembly reinforced with steel gusset plates, bolted together for greater strength.

Electrical Control Cabinet:
Made from cast aluminium alloy, explosion proof type for hazardous locations. Classifications 7 D, 9 E, F, G, Class I, Group D, Class II, Group E, F and G, Class III, Division I and 2 areas. C.S.A. and U.L. approved. Size 10" x 8" x 6" (25cm x 20cm x 15cm) interior dimensions, enclosing all electrical components. Factory pre-wired and mounted to unit chassis with four zinc plated bolts. Electrical wiring from motor to this cabinet are concealed by means of explosion proof fittings, junction boxes, unions, and flexible conduits. All C.S.A. and U.L. approved. Removable cover for easy service and maintenance.

Manual Overload Relay:
Protects operator from overcurrent and under voltage; can be reset manually.

35VA step-down transformer:
120V AC primary to 24V AC secondary. 240V AC primary to 24V AC secondary. 208V, 230V, 416V, 460V, 600V AC primary to 24V AC secondary.

Emergency Chain Hoist:
Combined with a floor operated disconnect which when pulled will disconnect the electrically driven solenoid brake and engage the chain hoist for manual operation in the event of power failure, without having to remove the main drive chain. Assembly consists of one grooved aluminium pocket wheel, lever arm, one coupling, 1/8" (.31cm) D. pull cable, 7/16" (11.1mm) D. bright polish chain, wall chain keeper and disconnect arm.

Explosion Proof Safety Electrical Interlock:
When chain hoist is in operation a normally "ON" toggle switch cuts the power line of operator control automatically. This safety electrical interlock will protect operator and door when power is restored and push button station is pressed accidentally.

Explosion Proof Motors:
Rated for continuous duty (capacitor starting on single phase models) 3/4 H.P. (559.5W), 1 H.P. (746W), 1-1/2 H.P. (1119W) or 2 H.P. (1492W), 120V or 240V single phase, 208V, 230V, 416V, 460V or 600V three phase, 1725 RPM, ballbearings permanently lubricated. Frame rigid type 56C, 5/8" (2.05cm) or 7/8" (2.22cm) shaft diameter. 2 H.P. (1492W) not recommended on single phase motors. Other voltages available on request. For hazardous locations. C.S.A. and U.L. approved.

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