For the calcium silicate block industry, JKB has developed a special clamp that can handle a large quantity of calcium silicate elements in one go. These clamps are generally mounted on heavy forklift trucks that are able to be driven safely with such quantities and weights.

The size of the clamp used depends on the size of the curing trolleys on which these elements leave the autoclave. As a rule the clamping length ranges from 1,800 to 2,400 mm and can pick up weights of between 3,000 and 6,000 kg. The operations typically continue 24 hours a day so it is important that the clamp is capable of withstanding such intense use.

Our JKB HK KZS calcium silicate block clamps are robustly constructed, with each clamp arm comprising eight or more vertical beams and five or more large pivot points.
The slimline design of the rotation shaft with oil feedthrough ensures optimum vision between the clamp and the crane arm. Hydraulic centre of gravity positioning is fitted as standard to allow picking up half a pack at one end of the clamp. This moves the centre of gravity back under the rotation axis, so the load is more stable and therefore safer to transport.

Benefits of the HK KZS calcium silicate block clamp:

  • Robust construction
  • One clamping cylinder can be disengaged when picking up partial packs.
  • Extremely stable clamping
  • Clear view of the clamp and surroundings through the clamp structure.

Download the JKB brochure for free and contact one of our sales specialists for more information

Why choose JKB:

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

Download brochure JKB Handling

Download brochure
JKB Handling


There are various ways of attaching the clamp to the forklift, each with its own advantages. It can be attached using:

  • FEM/ISO crane arm
  • Integrated crane arm

Depending on the selected suspension, we can increase the functionality of the clamp still further to allow:

  • Rotating
  • Side shifting
  • Telescoping

Capacity: 4,500 – 6,000 kg
Max operating pressure: 140 bar / 14 MPa

Blok56 - Webdesign & Grafisch ontwerp ×

Blok56, one design agency for all your visual communication needs. From logo design to complete corporate identity, (product) photography, virtual tours, and of course, your website or online store.

Ready to start a project? Get in touch with us, and let's build your brand together!


Emmasingel 56, 6001 BD Weert

Phone:+31 (0) 495 623 646
Scroll naar boven