arrow calendar cartcheck checkmark close configure contact danger download external_link facebook globeinfo instagram linkedin logo_claim logout mail menuminus navigation pin play plus rss searchshaft success twitteruserwarning wechat x-twitterxing youku youtube zoom
Change the country selection to see information on the products, services and contact persons that are relevant for your location.


Pneumatic 3-jaw clamping force blocks
Pneumatically actuated 3-jaw clamping force blocks in compact design with high clamping forces. These are available with standard jaw stroke and long stroke.

Advantages – Your benefits

  • 3-jaw clamping force blocks for cylindrical workpieces
    This low-deformation clamping, especially for thin-walled workpieces
  • Force amplification for O.D. clamping via spring force
    Increased clamping force for heavy metal-cutting tasks as well as maintenance of the spring tension during storage
  • Patented monitoring of the base jaw position via dynamic pressure
    Know whether the vise is open or clamped
  • Workpiece presence control through the base jaw
    Enables automated loading of the clamping force block
  • Precision wedge hook clamping force block for top-quality demands
    Allows excellent machining results
  • Square design with ideal external contour
    Ideal for 6-sided machining in two set-ups with great lateral accessibility
  • High efficiency of the wedge hook system
    Process-reliable clamping due to high clamping forces
  • Base jaws with tongue and groove and fine serration as a dual interface as standard
    High flexibility of system jaws
  • Optimal jaw support due to the use of a very long base jaw guidance
    Allows high clamping forces at a long service life
  • All sides of the functional parts are hardened and ground
    Ensures a long service life

Options and special information

  • Hydraulically actuated powerhouses now also available as 3-jaw vises
    The TANDEM product range has always stood for high-performance 2-jaw clamping force blocks. With the KRP3, SCHUNK is now expanding its huge modular system to include a powerful 3-jaw variant. These clamping force blocks allow clamping of cylindrical workpieces with low deformation without using special chuck jaws and a with better force distribution – a compact alternative to conventional clamping devices.
  • The great advantage of these compact clamping devices compared to other clamping devices are the additional equipment variants such as an increase of the clamping force with O.D. clamping, a patented monitoring of the base jaw positions via dynamic pressure or the possibility of air control through the jaw. Another highlight is the compatibility of the most common designs, so that existing KSP3 vises can be replaced 1:1 by the KRP3 vises.