BSD electric door operator is suitable for any bi-parting sliding industrial door or fire door up to 700 sq. ft. (65m2) in area. It has two quick disconnect arms, spring loaded, which can be disengaged from floor in case of power failure. Fusible links are provided when used with sliding fire doors.
Three Button Control:
Momentary contact type for open, close, stop. Operator may be stopped in any position and door moved in either direction from that position. Close button can be wired for constant pressure when specified. Control circuit 24V AC for users protection.
Adjustable Automatic Friction Clutch:
Will protect door and operator in case of obstruction.
Rotary type, with oilite bronze cams and precision micro switches for automatic stopping of door in open and closed positions (easily adjustable without tools).
Heavy duty type.
The power unit of this operator utilises a large size V belt (4L) and heavy pulleys for primary reduction, roller chain and steel sprockets for secondary reduction to the output drive shaft. Door operating speed approx. 1.0ft (.3m) per second.
Cast aluminium alloy chain driven carriages, slide in dual heavy steel angle tracks, with full No.41 push and pull roller chain, for smooth and quiet operation. In addition, roller spreaders are provided to support trolleys and prevent chain from rubbing.
Quick Release Door Arms:
Quickly disengage operator from doors at floor level (without tools), for manual operation in the event of power failure.
1/3 HP (248.6W), 1/2 HP (373W), 3/4 HP (559.5W), 1 HP (746W), 120V or 240V single phase, 208V, 230V, 416V, 460V or 600V three phase. 1 HP not recommended on single phase motors.
Manual Overload Relay:
For overcurrent and under voltage protection (can be reset manually).
To prevent door from coasting and for holding in any position.
30″ (75cm) minimum above door track.
/2 opening width plus 3’6″ (90cm) on both sides of door centre line.
Primed with rust-proof primer and spray painted in blue hammertone enamel.