Mechanical Screw Jack is a device which lifts vehicle so that maintenance can be performed. The range of jack is 05 ton to 75 ton capacity (calculated on center load basis). Mechanical screw jack is the most common type and uses a mechanical screw mechanism to lift the motor vehicle.
Jack is one of the crucial part for lifting purpose, also used as basic vehicle-maintenance package in automobile. Automobile jacks come in two main varieties mechanical screw jack and hydraulic bottle jack. A mechanical screw jack is the most common type and uses a mechanical screw mechanism to lift the motor vehicle.
A mechanical jack is a device which lifts heavy equipment using low human efforts in the most effective way. This is the most common form of jack which lifts vehicles so that maintenance can be performed.
Mechanical Jacks usually use mechanical advantage to allow a human to lift a vehicle by manual force alone. When the upper cap / nut is rotated anti-clockwise the screw (threaded RAM) starts lifting upwards moving the object to certain height and its clockwise function brings the object down to its actual position. Mechanical Jack is also used as a supporting jack with hydraulic jack. For the longer life of mechanical jack a hole is provided in the nut / cap which is used to provide grease to the bearing fitted in the nut / cap so that the jack.