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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.

Hand-operated Translating Screw Jack 5ton
  • Product Origin:

    Dezhou
  • Item No.:

    SWL5
  • Shipping Port:

    Tianjin/Qingdao
  • Color:

    Customized
  • Lead Time:

    within 15 days after payment received

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.

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  • Product Details
  • Photo

1. Manual Screw Jack Picture and Descriptions


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. 

hand-operated screw jack

2.Manual Screw Jack Features


The hand crank screw jack has a disadvantage that is the travel speed is slow and the maximum travel length of the handwheel or handwheel per revolution is 1 to 1.5 mm. However, manual bevel gear jacks are the ideal solution for slower walking speeds with internal bevel helical gear pairs up to 12mm stroke length with one handwheel or crank per revolution. When you need a hand crank screw jack with high speed,a bevel gear jack is the best choice.


3.Manual Acme Screw Jack 5ton Main Parameters

 max. lifting force: 50kN, 

screw thread size Tr40*7,

ratio 6:1/24:1

Drawing for reference


4. Do you like to know more about the manual screw jack? Pls see the following video.


Manual screw jack applications 


screw jack system

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manual screw jacks for lifting
Worm gear screw jack manual screw jack

Manual 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.

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Hand wheel Worm Gear Screw Jack

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.

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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.

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Manual trapezoidal screw jack with handwheel

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.

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Trapezoidal Screw Jack with Hand Wheel

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

Hand Operated Screw Jack for Crank Table
Hand Operated Screw Jack for Crank Table

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. Our Jack's Advantages: -Self-locking ability -Can be driven directly by hand wheel -Can be customized according user's demand -Compact configuration, small size, lightweight -Convenient installation, flexible operation -High reliability and stability -2 / 3 /4 /8 sets etc. screw jacks to linkage to use  Please see a short video about hand operated screw jack for crank table below,

Hand Crank Table Lift  Screw Jack Mechanism
Hand Crank Table Lift Screw Jack Mechanism

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.

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Double worm enclosed housing slewing drive

Dual worm slewing drive is designed with two worms drive at the same time. It is more tooth contacting and double output torque than single worm SE Series.

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Worm Gear Screw jacks with Anti-rotation Device

When you need to lift an article and only like to lift up and down without rotation, anti-rotation screw jack is a right choice.

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Mini Size High Precision Screw Jack

SJB ball screw jack lift has 13 models,dynamic load from 11kN to 111kN.

acme screw lift jacks
Screw Jacks SJA Series

Trapezoidal acme screw jacks are popular among daily use. Its features are that  it is simple to maintain, low noise, and can work normally at high / low temperature, corrosion / explosion harsh environment,

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High Accuracy Low Noise Worm Machine Screw Jack Screw Lift

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

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