Our traditional JKB CK hydraulic brick and block clamp, the go-to crane attachment that started it all off all those years ago.

Robust and powerful clamp design for tackling the most common construction site jobs.

Six tapered, extra-slim vertical beams and three pivot points per clamping arm are combined with a wide upper section to ensure an extra stable grip.

The single bottom beam with short extension sleeves at each end allow the use of a wide variety of EV and DV accessoires.

Find our standard clamp sizes in the product description below. Non-standard clamp dimensions can be discussed.

Download the free JKB brochure and discover all the possibilities our attachments and attachment fittings offer

Why choose JKB:

  • Quality, reliability and safety
  • Innovation and sustainability
  • Expertise and customization

Download brochure JKB Handling

Download brochure
JKB Handling


  • The standard clamp cylinder combined with the clamping arm leverage and black rubber pads that are fitted as standard result in a high gripping force;
  • Load-holding valve prevents a reduction in clamping pressure if there is a drop in control pressure;
  • Two hydraulic hoses with standard JKB 1/2” quick couplers (male);
  • Extra slimline tapered clamping arms and low dead weight through the use of special steel;
  • Easy-to-operate width adjustment via clamping adjustment pins with a large handgrip and conical search edge;
  • A large range of (EV&DV) extensions and accessoires can be fitted to the lower grab beam;
  • Long service life due to low-maintenance construction;
  • Parking mode for upright clamp storage;
  • Suspension suitable for shaft rotators combined with optional JKB lower rotator link;
  • Can be fitted with parallel guides for symmetrical movement of clamping arms;

TypeWidth adjustment (mm)              Length (mm)     Internal height (mm)     Weight (kg)


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