Escalators

Some key standard features of A2 family of escalator:

Truss
The truss of the SE family of escalator is of welded structural steel construction designed to carry safely the passenger and mechanism loadings. To prevent hidden corrosion, all load bearing members of the truss comprises of open steel profile.

Step
The step is made of one piece die-cast aluminium alloy with closely spaced cleats designed to provide a secure foothold. Yellow colour plastic step demarcation lines are fitted on the sides and rear of each step. Sound deadening material is coated at the back of the steps for quiet operation.

Handrail
The handrail is a continuous band design manufactured of vulcanised rubber, factory spliced, with a multi-ply fabric core and steel cord reinforcement. The rubber composition used ensures that the handrail surface remains smooth and intact throughout its entire service life. The internal gliding surface has nylon webbing to minimise friction and wear.

Drive machine
The motor is a three phase squirrel cage AC induction motor specifically developed for escalator service.
The gear unit is worm gear type composed of precision steel worm and bronze worm gear. Gears and bearings are lubricated by an oil bath inside an oil tight housing. The reduction gear unit is connected to the step band main drive shaft by a duplex roller chain.

Brake
The brake is designed to automatically stop the escalator whenever power is interrupted. To minimise wear and harsh braking, the control system monitors the speed of the step band and applies the brake only when it comes to a complete stop.

Automatic announcement system
To ensure safer riding for passengers particularly visually impaired or handicapped, CD quality voice announcement system automatically broadcasts guidance and alert messages.

A variety of optional faetures are available to enhance and extend the functionality:

Automatic start / stop
Automatic detects approaching passengers and controls the escalator to run only when needed, thus allowing maximum energy efficiency and equipment lifetime.

Motor energy control
Motor energy controller continuously monitors motor loading conditions and regulates the power feed into the motor. Motor energy control can achieve up to 30% energy saving during light or no load condition.

Lighting
To provide better illumination, skirt and comb lighting can be fitted to all SE escalators. Under handrail lighting can be fitted to SET escalators only.

Skirt dress guard
To further enhance passenger safety, dress guards can be fitted to the skirt panels, which keep passengers away from the step gap and prevent accidental trapping of dresses and shoes.