• We design and manufacture high-performing screw jacks for all industry sectors.

    Explore our PDFs, CAD models and power calculator to understand your requirements, and then speak directly to our design team to discuss your system.

    Go to Screw Jacks >
  • We create bespoke linear actuators when you can’t source an off-the-shelf solution.

    When you have a specialist need for accurate and repeatable performance in moving, rotating or positioning load, our engineers can develop a solution.

    Go to Linear Actuators >
  • Benefit from direct access to our design engineers when procuring your high-quality components.

    When working with us, we put our engineering know-how at your disposal to ensure the optimum outcome for you.

    Start an informed conversation >

Screw Jacks

Electro-mechanical lifting simplified

UK manufactured screw jacks engineered for duability, efficiency and power. Our engineers are on hand to guide your procurement.

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Linear Actuators

Load capacity up to 500kN

Bespoke linear actuators for when you cannot source an off-the-shelf solution. We can accommodate many special design requirements.

Find out more >

Modular Cubic Screw Jacks

Bespoke systems

Our in-house components and system building software help you efficiently create the modular screw jack system you require.

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Cubic Accessories

Capability to design and manufacture a wide range of accessories to complement your modular screw jack system.

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Cubic Bevel Gearboxes

Hollow and solid shaft designs offer you the connection flexibility you need when changing direction or powering multiple screw jacks from one motor.

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  • Who We Are
    Design Engineers

    We design and create unique solutions that no-one else will. Take advantage of our bespoke design and manufacturing service to meet any durability, power, or efficiency demands at the right price.

    Find out more
  • A Heritage
    of Precision

    Kelston has been making precision gears for over 40 years. For the past five, we have specialised in screw jack systems. Today, everything we do is designed to make it easier for you to get precisely what you need.

    Find out more
  • Manufacturing
    Specialists

    Our sophisticated in-house manufacturing facility houses a wide range of machining, finishing and assembly processes. Everything we need to manufacture our full range of screw jacks, gearboxes and linear actuators.

    Find out more

Knowledge Base

  • Screw Thread Terminology

    Screw Thread Terminology

    A screw thread is a helical groove formed on an internal or external diametrical surface and is described by various terms including pitch, root, crest, flank and major diameter. These terms are described here.

  • Worm and Wheel

    Worm and Wheel

    Worm Drives are used when the axis of rotation of a shaft must change direction. Being low-cost, potentially self-locking and providing high gear reductions, Worm Drives provide an effective means of decreasing speed whilst increasing torque.

  • Screw Jack Calculation - Power

    Screw Jack Calculation - Power

    Kelston has created an online System Builder for customers to quickly and easily determine an appropriate screw jack system.

  • Screw Threads & Mechanical Advantage

    Screw Threads & Mechanical Advantage

    A screw is a mechanical system that converts rotational motion in to linear motion. In other worlds it converts rotational force (torque ) in to a linear force. Here the resultant axial force due to an input torque is calculated from first principles.

  • Electromechanical vs. Hydraulics

    Electromechanical vs. Hydraulics

    Mechanical screw jacks and linear actuators are increasingly becoming the preferred choice of actuation over the equivalent hydraulic or pneumatic systems.

  • Bevel Gear Sets

    Bevel Gear Sets

    Bevel gears are used when the axis of rotation of a shaft must change direction. Providing a highly efficient and durable means of gear reduction, Bevel Gear sets have many uses.

  • Screw Jack Working Principle

    Screw Jack Working Principle

    Screw Jacks are found wherever there is a need to lift, position and hold load. A Screw Jack (also known as a Jack Screw, a Worm Screw Jack, a Machine Screw Jack or a Lead Screw Jack) is a devise used to convert rotational motion into linear motion.

Customer Quotes

  • Customer

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    A Customer

    Engineer, Percussive Maintenance Ltd

  • Customer

    Bacon ipsum dolor amet strip steak fatback pork ham tongue pastrami cupim pork belly meatball buffalo tenderloin bacon. Alcatra shank pig bacon cupim sausage. Burgdoggen short ribs venison fatback, hamburger tongue sausage strip steak. Meatball meatloaf t-bone shank doner strip steak pork chop landjaeger hamburger alcatra kielbasa buffalo.

    A Customer

    Engineer, Percussive Maintenance Ltd

  • Customer

    Bacon ipsum dolor amet strip steak fatback pork ham tongue pastrami cupim pork belly meatball buffalo tenderloin bacon. Alcatra shank pig bacon cupim sausage. Burgdoggen short ribs venison fatback, hamburger tongue sausage strip steak. Meatball meatloaf t-bone shank doner strip steak pork chop landjaeger hamburger alcatra kielbasa buffalo.

    A Customer

    Engineer, Percussive Maintenance Ltd

  • Customer

    Bacon ipsum dolor amet strip steak fatback pork ham tongue pastrami cupim pork belly meatball buffalo tenderloin bacon. Alcatra shank pig bacon cupim sausage. Burgdoggen short ribs venison fatback, hamburger tongue sausage strip steak. Meatball meatloaf t-bone shank doner strip steak pork chop landjaeger hamburger alcatra kielbasa buffalo.

    A Customer

    Engineer, Percussive Maintenance Ltd

  • Customer

    Bacon ipsum dolor amet strip steak fatback pork ham tongue pastrami cupim pork belly meatball buffalo tenderloin bacon. Alcatra shank pig bacon cupim sausage. Burgdoggen short ribs venison fatback, hamburger tongue sausage strip steak. Meatball meatloaf t-bone shank doner strip steak pork chop landjaeger hamburger alcatra kielbasa buffalo.

    A Customer

    Engineer, Percussive Maintenance Ltd

  • Customer

    Bacon ipsum dolor amet strip steak fatback pork ham tongue pastrami cupim pork belly meatball buffalo tenderloin bacon. Alcatra shank pig bacon cupim sausage. Burgdoggen short ribs venison fatback, hamburger tongue sausage strip steak. Meatball meatloaf t-bone shank doner strip steak pork chop landjaeger hamburger alcatra kielbasa buffalo.

    A Customer

    Engineer, Percussive Maintenance Ltd

Specialising in screw jacks and custom-purpose linear actuators, Kelston Actuation's legacy of precision manufacturing stretches back more than 40 years


Info

Tel.: +44 (0) 117 947 3100
Email: sales@kelstonactuation.com


BUSINESS HOURS (UK)
Mon to Thu 07:30 - 17:00
Fri 07:30 - 16:00


COMPANY ADDRESS Kelston Actuation
Limited Unit 2, Unicorn Business Park
Whitby Road, Brislington, Bristol, BS4 4EX

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