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Screw Jacks used for Hydro Gate Sluice Gates
Electric motorized screw jack are used for rivers, canals, power station sluice gate lifting projects, which uses electric motor driven instead of human power starting with a simple manual operation screw jacks. Motorized Single unit, pair units...multiple units or tandem screw jack arrangements with kinds of motors for gates. Here are some key points for this application: 1.For selecting sui...
Apr 03 , 2018 view more
Screw Lift Motor Choosing
Screw lifts are found everywhere in production life, especially in some working platforms. Worm gear screw lift can be used alone or with more than one reducer or steering box linkage. It Can be manually adjusted, also can be used motor or other power driven. Please choose a good motor with good cooling performance when you choose motors for screw lifts. Because the elevator needs to work co...
Feb 01 , 2018 view more
Screw Size Selection for Screw lifter
There are some important parameters for Screw lift selection : lifting load (KN), screw stroke (mm) and lifting speed (m / min). Lifting load and screw stroke are both important to lift screw size selection. For example: For two worm gear screw lifts with same load 200KN, travel respectively 100mm and 1000mm, usually we can choose 0.5T (screw diameter 18) or 1T (screw diameter 20) screw lift...
Mar 21 , 2018 view more
Screw Jack Lifting Speed Control
As a worm screw lift manufacturer , we often receive calls from customers to inquire about the speed of the lift. How do you make the screw jack complete the stroke in the specified time? The main factors determining the speed of the screw jack are the input speed, speed ratio and pitch. Usually, we have two kinds of jacks, which are fast and slow. The high speed ratio is 6:1, and the slow s...
Jan 17 , 2018 view more
Self-locking and back-driving conditions
Trapezoidal screw jack has self-locking function which means when the rotational force on the screw is removed, it will remain motionless where it was left and will not rotate backwards, regardless of how much load it is supporting. Self-locking function is very important for some applications. Self-locking and back-driving conditions are defined in the following 4 situations: 1)Static self-l...
Jan 05 , 2018 view more
Slewing Drive Self-locking
Slewing drive is widely used in solar energy field, wind power generation, shipbuilding, tower crane and other construction machinery, can withstand greater axial force, radial force and tipping torque, can drive the turntable or bracket for horizontal and pitch angle rotation. Slewing drive can be installed in -40 ° to 80 ° environment, working efficiency of 35% to 40%. Self-locking is an importa...
Dec 02 , 2015 view more

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