موتور : 6355 دانکر آلمان dunker
( 2 سال گارانتی بی قید و شرط )
Triggering
A door operator may be triggered in various ways
Approach Sensor (such as a radar sensor) – the door opens when a user approaches it
Pushbutton – the door opens when a user presses a button
Access control – the door opens whe犀利士
n an access control system determines the user isauthorized to go through
Automatically (in the case of elevators)
A trigger from any of the above requests that the door be opened (or reopened if it wasclosing)
Technology
The operator is placed in the space above the sliding door
An electric motor, geared down to get a lower speed and a higher torque, drives a pulley at one end of a belt. The door is clamped to the belt. To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs
Historically, elevator doors were opened by a set of mechanical linkages; the motor, geareddown, would rotate linked arms, which in turn would drive the door
Types
There are several types of sliding doors, these are
Standard sliding door (single wing or double wings)
Telescopic sliding door (two wings or four wings)
Circular sliding door (segment circular, semi-circular or full circular)
Sliding folding door (two wings or four wings)
Hermetic sliding door (single wing or double wings)
All glass sliding door (single wing or double wings)
Clean room sliding door (single wing or double wings)