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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.

Bevel Gearbox Center
The composition of the electric linear actuator
  • March 30,2018.

The Electric linear actuator is a good choice when you need simple, safe and clean movement with accurate and smooth motion control. You may choose actuator systems for adjustments, tilting, pushing, pulling and lifting with thrusts up to 10,000 N.

 

The electric linear actuator has a variety of very different applications. From healthcare to agriculture, comfort furniture, office interior, or industrial automation the number of possibilities is almost endless.

In order to have a better foundation and understanding of how an actuation system works, we will now look at the components that go into manufacturing an electric linear actuator.

 electric linear actuator

A. Front / Rear Clevis - Attachments on the front and rear of the actuator that allow it to be mounted to the application.  

B. Outer Tube - Also known as the cover tube. This extruded aluminum or steel tube protects the outside of the linear actuator and houses all of the inner components of the actuator. 

C. Inner Tube - Also known as the extension tube, drive tube, translating tube or piston. This tube is usually made out of aluminum or steel.  While retracted, the inner tube is where the spindle is located.  This tube is attached to the threaded drive nut and extends and retracts when the nut moves along the rotating spindle.  

D. Spindle - Also known as the lead screw, rotating screw or lifting screw. This part of the linear actuator rotates, extending or retracting the nut/inner tube, which creates a linear motion. Our steel spindle ensures durability and strength. The spindle can be threaded in different ways for various load and speed capabilities.  Additional details of this will be covered in another section.

E. Safety Stop - Located on the end of the spindle, its function is to prevent the inner tube from overextension. 

F. Wiper - A sealing component attached to the end of the outer tube which prevents contaminants like dust and liquids from entering the spindle area of the actuator. It also ensures a proper seal between the inner and outer tubes which influences the IP rating of the linear actuator.

G. Drive Nut - The nut, which can be acme or ball, is attached to the inner tube and travels along the spindle. The nut is the component that allows extension or retraction of the inner tube. It can be made of metal or plastic and is sometimes keyed to prevent inner tube rotation.

H. Limit Switches - Limit switches control the fully extended and retracted position of the inner tube by electrically cutting current to the motor. These switches prevent the actuator from over extending or over retracting. In addition to cutting current, limit switches can also be used as a signal sending device.

I. Gear - A gear is made of steel or plastic and mates with other gears to alter the relation between the speed of a driving mechanism (such as the engine of a vehicle) and the speed of the driven parts (the vehicle’s wheels). The gear connected to a power source, such as the motor, is called the "drive gear".

J. Motor Housing - The motor housing contains all the internal parts to the gear motor without leaving anything exposed for external damage.

K. DC Motor - The DC (Direct Current) motor is where all the power is generated for the electric linear actuator.

 

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