Drive technology: to meet the highest demands
Engineers around the world rely on our Pfaff-silberblau and Duff-Norton screw jacks for their precision, reliability and durability. Our screw jacks are available in many standard sizes with different lifting speeds and lifting forces from 5 - 2000 kN.
The tasks of our jacks are diverse, for example lifting, lowering, tilting or moving. Our product portfolio reliably covers all common industrial applications and requirements.
Thanks to seawater-resistant materials, special housings and surface coatings, our screw jacks are also ideally suited for use at sea.
Our types of screw jacks:
Videos of screw jacks in use
Screw Jacks CAD Configurator CAD & go:
Our CAD application allows you to access 2D / 3D CAD data of our screw jack technology in various formats. Alternatively, you can transfer CAD data directly into your CAD system via our Click2CAD toolbox. In addition, you will also find many other options of our accessories programme here.
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Advantages of Pfaff-silberblau screw jacks
QUALITY - MADE IN GERMANY: Our lifting elements ensure high availability, safety and precision at the workplace.
- Wide range of applications
- Robust, reliable and powerful
- Functionally accurate and safe design in compliance with the applicable machine guidelines thanks to decades of experience
- Cost-effective, clean and environmentally friendly - excellent alternative to hydraulic and pneumatic
- Simple synchronisation of several lifting elements, optional electrical synchronisation possible
- High safety, lifting elements with options meet all important safety standards (EN1570, EN 280, EN 1756, EN 1493, BGV C1)
- Gearbox in two gear ratios
- Various designs and accessories (couplings, anti-rotation device, etc.) are available for customised individual solutions.
Screw jacks FAQ - Frequently asked questions
What is a machine screw jack and how does it work?
Screw jacks (also known as Worm Gear Screw Jack or Machine Screw Jack) consist of a gearbox (worm or bevel gearbox) and a screw (trapezoidal screw, ball screw), which converts a rotary motion into a linear motion with the support of a motor. Screw jacks can be used to lift, lower, tilt or move loads.
What is the difference between trapezoidal screw and ball screw jacks?
The self-locking trapezoidal screw jack from Pfaff-silberblau is designed in such a way that it is not possible for the nut or screw to move without external force being applied. The self-locking feature ensures a high level of safety due to its fall protection and makes it possible to dispense with a cost-intensive brake in many applications.
The ball screw is not self-locking and has a higher efficiency due to its design. This also allows faster lifting speeds and a higher duty cycle compared to the trapezoidal screw.
Need help selecting the right type of screw jack?
We offer different types of screw jacks, such as axial screw jacks or rotating screw jacks, gearbox designs (cubic screw jack, Stainless screw jacks). They can all be realised with a trapezoidal or ball screw and can be completed with a variety of options and extra features. In our catalogue you will find a Construction aid to help you make your choice, as well as more information on the individual series and their options.
View the catalogue
Would you like to be consulted? Contact one of our technical experts to find the ideal product for your application.
Sales department +49 8233-2121 777 |