Specifications of the HDM model (Manual)
- Suitable for applications up to 20 feet in width or height
- Self-supporting steel mounting angle
- Knock-away double angle steel bottom bar for 10lb/ft with rubber loop
- Manual chain hoist
- Counterbalance spring assembly cycle rating of 50,000
Specifications of the HDE model (Economy)
- Suitable for applications up to 20 feet in width or height
- Self-supporting steel mounting angle
- Knock-away double angle steel bottom bar for 10lb/ft with rubber loop
- Frame mounted thru-beam photoelectric sensor
- Heavy duty gear operator with push button controls open, close, stop
- Door speed of up to 18 inches per second
- Counterbalance spring assembly cycle rating of 100,000