High-quality clamps for precise and flexible clamping in the 28 mm system

Flexible, robust and easy to operate

Our clamps for the tried-and-tested 28 mm hole pattern system offer you maximum stability and flexibility when clamping a wide variety of workpieces. Thanks to their robust design and precise fit, they guarantee secure fixing - ideal for fixture construction, series production and everyday workshop use.

The 28 mm system enables the clamps to be positioned quickly and precisely thanks to horizontally adjustable round tubes and secure fixing using adjusting rings. Our  pipe clamps are available in different angles of inclination (45°, 90°, 180°) and therefore enable versatile clamping solutions. In addition, fast tension clamp with ratchet mechanism ensure customised force adjustment and efficient working.

The range is complemented by practical accessories such as clamping bridges, which expand your clamping options and make handling easier.

Product features and advantages of our clamps:

  • Quick and easy adjustment: The horizontal round tube enables the clamp to be adjusted quickly, while the vertical round tube with a length of 300 mm ensures precise positioning. 
  • Secure fixing: An adjusting ring reliably fixes the vertical tube in the system holes for a stable hold during work.
  • Versatile angle of inclination: Our pipe clamps are available in 45°, 90° and 180° inclinations for powerful clamping of components at precisely the desired angle.
  • Robust design: All models are equipped with a 40 mm diameter disc head (cross) that optimally transfers the force to the workpiece. In addition, all clamps have a reinforced material thickness and optimised geometry, which means that even the highest loads are reliably absorbed.
  • Flexibility: The 90° pipe clamps can be rotated continuously through 360°, allowing completely free positioning. In addition, the 45° and 180° pipe clamps can be completely dismantled and can therefore be used optimally in all system bores of the tools. 
  • Efficient working with pipe clamps: Our pipe clamps offer an individually adjustable clamping force thanks to the ratchet system and enable workpieces to be fixed quickly.

Pipe clamps

Pipe clamps are indispensable clamping tools for the 28 mm HISWeld welding table system and offer maximum stability in professional metalworking and welding technology. They enable fast, flexible and secure fixing of workpieces directly on the welding table.

The robust round tube of the clamp can be easily and precisely adjusted horizontally, while the vertical round tube (300 mm long) ensures a particularly stable clamping position. The vertical tube is reliably fixed in the system holes using an adjusting ring.

Thanks to their high clamping force and accuracy of fit, the 28 mm pipe clamps are ideal for demanding applications - from heavy components and large structures to complex welding projects where absolute precision is required.

New from Q4/2025: Our new pipe clamps are equipped with an optimised 2K-ERGO handle, which ensures even greater ergonomics, comfort and precise clamping force - perfect for professional use in metalworking, welding technology and everyday workshop work.


rohrschraubzwinge-180-grad

Pipe clamp 180° 
Item no. HIS28Z3000

The 180° pipe clamp enables components to be clamped precisely and powerfully at a 180° angle to the system bore. The horizontal round tube can be easily adjusted, while the vertical round tube (300 mm long) is securely fixed using an adjusting ring. The clamping force can be individually adjusted using the ratchet - for fast and precise work.

  • Width: 300 mm
  • Height: 300 mm 
  • Spindle length: 80 mm
  • Angle: 180°
  • Plate head: ø 40 mm (cross)

rohrschraubzwinge-45-frad

Pipe clamp 45° 
Item no. HIS28Z3045

The 45° pipe clamp enables precise and powerful clamping of components at a 45° angle to the system bore. The round tube design allows it to be positioned flexibly, while the vertical round tube (300 mm long) is held securely in place with an adjusting ring. It therefore offers a reliable solution for precise work in the 28 mm system.

  • Width: 300 mm
  • Height: 300 mm 
  • Spindle length: 80 mm 
  • Inclination: 45°
  • Disc head: ø 40 mm (cross)



rohrschraubzwinge-90-grad

Pipe clamp 90° 
Item no. HIS28Z3090

The 90° pipe clamp enables components to be clamped precisely and powerfully at a 90° angle to the system bore. It can be rotated continuously through 360° and can therefore be positioned freely. The vertical round tube (300 mm long) is securely fixed in the system holes using an adjusting ring - for flexible and reliable clamping solutions.

  • Width: 300 mm 
  • Height: 80 mm 
  • Spindle length: 80 mm 
  • Inclination: 90°
  • Disc head: ø 40 mm (cross)



Fast Tension Clamp

HISWeld Schnellspannzwingen 180

With the fast tension clamp 180° 
Item no. HIS28SZ100

the workpieces can be clamped quickly and powerfully. The force can be individually adjusted using the ratchet mechanism. The vertical round tube has a length of 280 mm. A set collar is used to fix the vertical tube in the system holes.

  • Width: 150 mm 
  • Height: 300 mm 
  • Inclination: 90°



HISWeld Schnellspannzwinge mit Grundplatte

The fast tension clamp with base plate 
Item no. HIS28SZ200

is a vertical clamp with a base plate that can be used universally in 28 mm holes and is fixed in place using quick-release bolts. This enables faster and easier work.




Accessories for clamps

spannbrücke für schraubzwinge

Clamping bridge for screw clamp 
Item no. HIS28SP2

The clamping bridge for screw clamps enables components to be clamped and fixed across corners. Thanks to the two clamping points, several components can be fixed at the same time - even on uneven surfaces or with different component heights.

The clamping bridge can be used universally and can be combined with all pipe clamps. Simply remove the clamping disc and attach the bridge - quick, easy and stable.

In our gallery you will find sample images and additional information on the clamping bridge - discover how versatile this accessory can be in practice.


New design. More ergonomic. Significantly stronger clamps.

Pipe clamps for 16 mm and 28 mm systems - now with optimised stability and maximum precision

spannbrücke für schraubzwinge

Our pipe clamps in the 16 mm and 28 mm system will have a completely revised design from Q4/2025. The new 2K-ERGO handle ensures greater ergonomics, maximum ease of use and precise clamping force - even during intensive use. 

All models have been standardised as part of the relaunch and will be available in a consistent design in future. The optimised handle shape enables safe handling, while the integrated hexagon socket ensures powerful clamping and releasing.

Another quality feature is the reinforced tube thickness: it increases the stability of the clamps and makes them even more resistant to the highest loads. This makes the pipe screw clamps ideal for professional use.


 Particularly practical: the clamps are height-adjustable and can therefore be used flexibly in both the 16 mm and 28 mm systems.

 In our gallery you will find an overview of all the latest new products and design updates for pipe clamps.

During development and production, we place the highest value on quality, stability and durability. The material thickness used is designed to easily compete with any premium supplier on the market - for maximum reliability in metal processing, welding technology and workshops.