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electric worm gear screw jacks
Motorized Electric Screw Jack Actuators Price

Electric screw jack actuators  is a basis jack-up part, accomplish the functions such as lifting, drop, push and inverting through worm gear drives screw.

electric worm gear screw jack lift
Two-set Linkage Screw Jack System

Two-set linkage screw jack system can be "L", I and T configuration.  It usually consists bevel gearbox, screw jack, electric motor, gear reducer, hand wheel, pillow block bearing, jaw coupling, line shafting.

 Automatic Screw Jack Lift System
Good Performance Screw Jack Lift System

Screw jack lift system structures include miter gearboxes, screw jacks, electric motor or gear reducer, hand wheel, pillow block bearings, jaw couplings and line shaftings.  Screw Jack System Features: 1. Heavy duty, self-locking, positioning precision, uniform lifting speed, fully synchronization, easy installation, easy operation 2. Two screw jacks system, three screw jacks system..forty screw jacks system. 3. Extremely high capacity requirements of need very precise up or down control. It's of high mechanical, they are an excellent choice when hydraulic, pneumatic or chain systems are prohibitive choices. 4. Widely used in wood working machines, plastics processing machines, textile machines, assembly equipment in the automobile and aircraft industries, food and beverage production equipment as well as packaging machines.

acme ball screw jacks screw lift
Four-set Linkage Screw Jacks System

Four-set linkage screw jack system can be  I and T configuration, transmission efficiency can be 85% .

worm screw jack lift table
High Efficiency Worm Gear Screw Jack Systems

Screw jack lift system structures include miter gearboxes, screw jacks, electric motor or gear reducer, hand wheel, pillow block bearings, jaw couplings and line shaftings.

SE enclosed housing slewing drive
Slewing Drive for Aerial platform

Slewing drives are powered with hourglass worm technology for maximum gear torque and the smoothest rotation.

Worm Gear Slewing Drive
Slewing Drive WE Series

WE Series Slewing drive is combined by the curved tooth slewing ring and worm, gear and worms are more touch supply larger torque.

spiral bevel gear unit
HD Series Spiral Bevel Gearbox

HD Series spiral bevel gearbox is hexahedron,which can fit different direction mounting.

worm gear ball and acme screw jacks
Worm Gear Screw Jack with reducer and motor

Screw jack is used in applications where linear motion is required. Lifting of any load, pushing or pulling of mechanical equipment, adjusting of tight clearances of mechanical parts can be done by screw jacks.

Spiral Gear screw jack
High-speed Lifting Bevel Gear Screw Jack

High-speed lifting bevel gear screw jacks are partly completed machines and intended for installation in complete machines or to be used for assembly with a totality of machinery to create systems.The bevel gear transmission makes high lifting speeds and a high duty cycle possible.

acme mechanical screw jacks lifts
Trapezoidal Machine Screw Jacks 5Ton

Worm Gear Machine Screws Jacks are common worm gear screw jacks,can be upright or inverted,with anti-rotation or self-locking functions.

high efficiency electric lift cylinder
Energy Saving Electric Linear Actuator with DC Motor

An Electric Linear Actuator is an actuator that creates motion in a straight line, in contrast to the circular motion of a conventional electric motor.

right angle bevel gearboxes
T Series Bevel Spiral Gearbox

T series bevel gearbox is standardized with many varieties. The deceleration ratio is 1:1, 1.5:1, 2:1, 2.5:1 and 3:1, which are all actual transmission ratios.

Acme Screw Linear Actuator
ACME Screw Linear Actuator with AC Motor

A Electric Linear Actuator is a mechanical device that converts energy (power from air, electricity or liquid) to create motion in a straight line.

ball screw electric cylinder
Ball screw lifting electric linear actuator

An electric linear actuator is a device that converts the rotational motion of a motor into linear motion – that is push and pull movements.

Screw Jack Knowledge
Screw Jack Alignment Is Very Important for Installation
  • August 16,2017.
On Aug.9th, we talked about how to install the screw jack.Now l’ll talk something more about the installation. That is about screw jack alignment .

Screw jack has the ability to turn rotary motion into tremendous linear force, within a compact envelope, is one of the miracles of mechanics.However, properly integrating a screw jack into a specific piece of machinery is no small feat. Beyond the actual selection of the appropriate size and configuration the mounting of a screw jack takes special care.


Screw jacks can take very little side load. Therefore any side forces, either from weight or misalignment, must be minimized or eliminated. This is usually accomplished by guiding the load with rails, rollers or linear bearings of some type. It keeps the load moving in the intended direction without undue strain on the nut, or internal threads in the case of a traversing spindle, from something other than the axial load it needs to move.

Aligning the guides to the jack (or vice versa), therefore, becomes one of the critical exercises in mounting screw jacks, or any other linear actuator for that matter. Otherwise it’s like trying to screw in a bolt that isn’t centered to the thread of a nut.  It doesn’t want to go in without extreme force and usually results in thread damage.

A potential problem with this is that the boot is usually attached to a separate support structure. These structures have tolerances, and if they are welds rather than the processing frame, then they can be extensive. Even so, it is their own problem to install the machining frame accurately.

The key here is to understand the challenge of creating a design that allows the socket and load guidelines to be designed for parallelism and angle. Afterwards, the ability to perform design in the store is a real-world problem faced by many assembly technicians.

In order to get the best overall system design, we need to consider parallelism, angularity, type of guide system, mounting surfaces, distance between supports, lift distance, and all the tolerances.  Everything will fall into place much easier after we think about all enough.

Lude Transmission is a worm gear screw jack supplier for 16 years,it has trapezoidal screw jack,ball screw jack,stainless screw jack and bevel gear screw jack. OEM and small order are acceptable.  If you have any need for screw jacks,just feel free to contact us.

types of screw jack


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