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Jacton Industry Co.,Ltd.
Contact: Warren Lee
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Screw jacks are transmission products (machine screws or ball screws)

Screw jacks are transmission products (machine screws or ball screws) that make rotary motion using gearbox assemblies (worm gears or bevel gears) and motors. They can be used to push, pull, tension, unlock, tilt, rotate, pull, raise or lower loads ranging from a few kilos to several thousand tons.

screw spindle of screw jack

Screw spindle of screw jack that are properly selected and maintained will reliably lift, position, support or hold industrial loads for years. Incorporating them into mechanized applications is a fairly simple matter once jack designs are understood. The basic components of machine screw jacks are lifting screw, gear set, and thrust bearing.

high travel worm gear jacks

high travel worm gear jacks come in three basic designs – Translating, Keyed for Non-Rotation, and Keyed for Traveling Nut. They can be specified with a choice of four standard screw end conditions, plain end, load pad end, threaded end, or Male clevis end.

screw jack as a lifting device

Translating screw jack as a lifting device is the most commonly specified jacks. With this design a driven worm acts on an internal worm gear, which in turn drives a lifting screw to extend or retract. All that is required for proper function is to restrain the rotation of the lifting screw and apply torque to the input shaft.

heavy duty acme jacks

Heavy duty acme jacks offer precise positioning, uniform lifting speeds and capacity up to 100 tons. Standard model configurations include upright or inverted units with translating or rotating lifting screws. End configurations include top plate, plain, threaded, and clevis ends.

synchronized lift airplane jacks

Synchronized lift airplane jacks with Keyed-for-traveling-nut jacks design, feature a lifting screw keyed to the internal worm gear as a single unit, forcing the lifting screw to rotate, but not translate. A flanged traveling nut, attached to the load, is driven by the rotation of the lifting screw.

worm screw elevator gears and screw rods

Worm screw elevator gears and screw rods are used wherever precisely controlled lifting, lowering, tilting, and slewing movements are required in an efficient and reliable operation. They have self locking function while ball screw jack does not have such function. Machine acme Screw Jacks in several designs including: Translating, Double clevis,

driving mechanism for inverted screw jack

These driving mechanism for inverted screw jack offfers a positive mechanical action, precise positioning and uniform lifting speeds. The standard configurations include, upright or inverted units with translating or rotating lifting screws, with top plates, threaded or clevis end fittings.

worm screw raising lifting mechanism

Worm screw raising lifting mechanism features a precision worm gear set, powerful lead screw, robust housing, two integrated lubrication mechanisms and a comprehensive range of options. Capacity ranges from 5kN to 1000kN as standard; as customised design it can be up to 2000kN. For low duty applications a machine screw jack is generally suitable.

spindel-type lifting gear

This spindel-type lifting gear has low cost and large stock. It offers positive mechanical action, precise positioning, and uniform lifting speeds. The payloads from 1 ton to 120 ton. A total of 9 sizes are available, each in a traveling nut version and a basic screw translating version.

right angle drive for acme screw

Right angle drive for acme screw, The most common jack is the worm gear screw jack, also referred to as machined screw jacks because the acme, or trapezoidal, lead screw is machined. In addition to the low cost and self-locking characteristics, another advantage of worm gear screw jacks,

Acme threaded screw jack

Worm gear acme threaded screw jacks are very good in multiple jack systems, because the torsional deflection of connecting shafts and couplings has little effect on positioning. Under heavy load, worm gear screw jacks are not designed for high use or heavy duty cycle applications. They also suffer from low travel rates or speed and low efficiency.

worm and wormwheel machanism for lifting

We are instrumental in offering an excellent quality worm and wormwheel machanism for lifting. Offered jack is commonly used to lift heavy weights, such as machines or vehicles. As per the industry set norms, this screw jack is manufactured by our experienced team members from premium quality raw material.

Gear drives the screw with trapezoidal thread lifting elevator

Gear drives the screw with trapezoidal thread lifting elevator are the most widely used mechanical actuator for intermittent duty cycles as the actuator incorporates a precision worm gear set in a rugged casting delivering positive, precise actuation.

Elevate Mechanism Screw Adjustment Mechanisms

Conventional Elevate Mechanism Screw Adjustment Mechanisms are the most widely used mechanical actuator for intermittent duty cycles as the actuator incorporates a precision worm gear set in a rugged casting delivering positive, precise actuation.

parrallel screw lift jack jacks

Types of parrallel screw lift jack jacks: There are a few variations of screw jack available depending on the specific application. These variations can be achieved with either a machine screw jack or ball screw jack and are largely chosen based upon the system architecture in to which they are to be fitted:

spindle-type lifting gear with ball screw and flange nut

spindle-type lifting gear with ball screw and flange nut are increasingly becoming the preferred choice of actuation over the equivalent hydraulic or pneumatic systems with advantages including simpler and smaller installation, a cleaner, healthier, quieter environment, lower energy costs with less maintenance.
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