CLOSING MECHANISM: FAST CLOSING
Base material: Aluminum.Heavy duty commercial use.
Min. door width: 31-1/2".Max. door width: 37-3/8".Door thickness: 1-1/2" - 2-3/8".Cycle testing: 500,000 opening cycles.Multi-power, power adjustable 1-4, 2-5, 3-6.Adjustable back-check and delay-action.Delay closing angle is for adjusting closing speed from 180-30 degrees.Buffered closing angle is for adjusting closing speed from 30-10 degrees.Strong-force closing angle is for adjusting closing speed from 10-0 degrees.