Spiral screw drive can be controlled by the vertical movement of the hoist (gate, weir gate, gate, etc.) or rotational movement (butterfly valve, rotary weir doors, etc.), so as to achieve the valve or gate is opened and closed, its compact body reasonable, open and close force, the whole series, widely used in lifting and regulate water plants, sewage treatment plants, all kinds of water supply and drainage, water and hydropower projects gate, weir gate, mud valves and other equipment. It can be divided into manual (hand plate, hand) and electric (dual flashlight) two forms of control. Spiral screw drive can be controlled by the vertical movement of the hoist (gate, weir gate, gate, etc.) or rotational movement (butterfly valve, rotary weir doors, etc.), so as to achieve the valve or gate is opened and closed, its compact body reasonable, open and close force, the whole series, widely used in lifting and regulate water plants, sewage treatment plants, all kinds of water supply and drainage, water and hydropower projects gate, weir gate, mud valves and other equipment. It can be divided into manual (hand plate, hand) and electric (dual flashlight) two forms of control. Features: 1, flashlight dual hoist screw by screw drive to achieve the gate, weir gate opening and closing. Drive screws are used trapezoidal thread and a plane bearing, with simple installation and maintenance, lightweight and flexible operating characteristics. 2, the electric hoist with positive gear - worm - worm two slow to meet the slow speed torque working condition. 3, the stroke control machine uses decimal counter principle, control error stroke 0.5%, torque control is protected by the worm axial displacement, to protect electrical works. 4, according to the requirements of the environment can be divided into ordinary type, outdoor type, explosion-proof to meet different requirements. 5, opening instructions gear transmission, accurate and reliable, and has an open-close signal lighting instructions. ※ T ※ E ※ L ※ 1 ※ 8 ※ 6 ※ 6 ※ 0 ※ 7 ※ 6 ※ 1 ※ 5 ※ 7 ※ 5 ※※ Q ※ Q ※ 1 ※ 6 ※ 7 ※ 7 ※ 4 ※ 8 ※ 8 ※ 1 ※ 4 ※ 0 ※ because production batch, the specific models, the above picture is only for reference, more price information please contact: Business Contact: Mengjing Li Contact phone: 18660761575 Business Want: zhongmeixiaoli business QQ: 1677488140 E-mail: zhongmeixz @ 163 .co m Address: 69 High-tech Zone, Jining City, Shandong Province torch Road