Main roller and guide rollers are installed on the both sides of the gate leaf.
The weight of water pressure received by the gate leaf is delivered to the roller rail in the guide frame and at the same time opening and closing occurs during water pressure.
It has less friction in comparison with slide gate leaf and opening and closing is facilitated, so it is used widely from small sluices to large sluices.

It conducts opening/closing up and down around a trunnion pin in the center.
As the trunnion pin supports the weight of water pressure, weight of opening and closing occurring due to the weight of water pressure lessens.
Circular skin plate is aesthetically excellent.

Weight of water pressure is delivered through contact of the gate leaf and a side of the guide frame.
The weight of opening and closing increases due to friction resistance as opening and closing manipulation results in contact of sides.
Therefore, it is used for relatively small sluices including manipulation with low water level difference and manipulation with water pressure balance.

There are mechanical type and hydraulic type wrenches.
mechanical type wrench uses reducer to generate great power from small power.
Depending on how the generated power is delivered, it is divided into wire rope winch type, rack type, and spindle type.
Hydraulic type is a hoist that uses a hydraulic pump to generate large operating forces with small power.

There are mechanical type and hydraulic type conduction gates.
mechanical type conduction gate uses reducer to generate great power from small power.
Wire rope winch type delivers power to wire rope for opening and closing.
Hydraulic type is a hoist that uses a hydraulic pump to generate large operating forces with small power.
Hydraulic formula has backing support and side-drive method depending on the actuation method