Trapezoidal Screw may be used individually or in multiple arrangements . there are no “ standard “ travel lengths and each Worm Gear Screw Jack is built to specification .

About Manual Worm Gear Table Lift, we offer models 1ton,  2.5ton  and 5ton screw jack mechanism.

Crank table is an common appliance of Hand-operated Screw Jack. We offer 2.5ton  and 5ton screw jack mechanism now.

screw jack is a gearbox assembly (either worm gear or bevel gear) and a transmission product (lead screw, ball screw or roller screw) which through use of a motor is used to convert rotary into linear motion.

Hand wheel worm gear screw jack is composed of hand wheel or hand crank and a complete set worm gear screw jack with internal worm and worm gear sets, standard hand wheel or hand crank.

The working principle of the hand operated worm gear screw jack is that the worm (also called the input shaft) is manually rotated by the hand wheel. the worm wheel(also called the worm gear) is rotated by the worm, and the trapezoidal lifting screw is moved by the rotating worm wheel.

Hand Operated Screw Jack is composed of hand wheel or hand crank and a worm gear screw jack

Manual Screw Jack is composed of hand wheel or hand crank and a worm gear screw jack.

Manual Screw Jack includes a worm gear screw jack and a handwheel or hand crank. It is suitable for applications where electricity or power generators is inconvenient or dangerous, light weight, low duty cycle, low target cost and short travel length.

Manual Screw Jack is made up of hand wheel or hand crank and a worm gear screw jack. It is suitable for applications where electricity or power generators is inconvenient or dangerous, light weight, low duty cycle, low target cost and short travel length.

Worm Gear screw jack is a kind of basic lifting equipment.

The Crank Handle Screw Jack are ideal solutions for applications where electricity or power generators is inconvenient or dangerous, light weight, low duty cycle, low target cost and short travel length. The working principle of the hand operated worm gear screw jack is that the worm (also called the input shaft) is manually rotated by the hand wheel, the worm wheel is rotated by the worm, and the trapezoidal lifting screw is moved by the rotating worm wheel. The linear motion speed of the worm wheel manual screw jack trapezoidal lifting screw depends on the thread size and the worm gear speed ratio. Hand Operated Screw Jack is composed of hand wheel or hand crank and a worm gear screw jack.It is ideal solutions for applications where electricity or power generators is inconvenient or dangerous.