Suitable to unidirectional unlocking door with the width 500mm-1000mm of door leaf and max.weight 15-30kg of door leaf.

Fine oil seal to prevent leakage of oil.

Quality casting aluminum alloy body protected by quality varnish.

Two hydraulic valves control two closing speed independently and hydraulically.

The speed-adjustable closing section is 180 degrees-20 degrees and the force-adjustable locking section 20 degrees -0 degrees.

Max opening angle for two-speed adjustment is 180 degrees.

With locking function(Position at 90 degrees and non-position at 180 degrees)

Normal color:Golden,silver,bronze or any color required.

Price can negotiabled.

Notes:Our company can also provide others model specifications you want.