Using a winch type hoist to open and close the gate, according to conventional methods, one hoist is used to open one hole gate. For reasons of conservation or supply, sometimes the following other opening and closing arrangements can also be used. The following is an explanation by the relevant personnel of the gate opening and closing machine on several other methods.

To overcome the weakness of the self weight of the gate body, a balance dragon can sometimes be used to reduce the opening force of the key reinforced concrete flat gate with a larger opening size. Equipped with a balance weight, only when the gate is closed and its own weight still has a considerable margin after overcoming the frictional resistance caused by water pressure and other loads, can it be considered This situation may be encountered in flat roller gates with larger orifice sizes Some flat doors have a higher design water pressure but a smaller required opening head, so it is also possible to consider using a balance weight

The staff of the gate of the opening and closing machine added that the balance weight itself is usually made of reinforced concrete into a beam type component with a rectangular cross-section. Its span is the width of the gate hole, and a protruding strip is made outside the hole width to extend into the side groove of the pier wall, in order to prevent it from swinging during lifting. The counterweight is connected to the door body with a steel wire rope through a turning pulley. When the gate is opened and closed with dual suspension points, its connection point can be located in the middle of the orifice. When the gate is opened and closed with a single lifting point, its connection point can be set within the range of the gate slot on both sides of the orifice.