The Crosslock CL-75 Rebar Chair is a platform-type self-locking cover block designed to provide accurate and reliable support for double reinforcement slabs. Unlike traditional steel chairs fabricated onsite, which often bend, rotate, or fail to maintain proper spacing, the Crosslock CL-75 ensures that the top steel remains at the correct height throughout concreting.
Why Choose Crosslock CL-75 Rebar Chair?
Perfect for Double Reinforcement
Specially designed for slabs where two layers of reinforcement are required. Placed directly on the shuttering, it supports the top layer of steel (distribution & main bars) with precision.Accurate Cover Height
Keeps the distribution bar at 75mm and the main bar at 85mm above the shuttering. Ideal for slab thickness between 125mm to 135mm (approx. 5 inches).High Load-Bearing Capacity
Made from engineered plastic with excellent strength, capable of handling heavy reinforcement without bending or collapsing.No Rotation or Sagging
Unlike fabricated steel chairs, the Crosslock CL-75 does not rotate or cause sagging of steel. This ensures that even when the bottom layer of steel deflects under load, the top steel remains stable.Uniform Concreting
The large holes in the design allow free flow of concrete, preventing voids and ensuring uniform bonding between reinforcement and concrete.Self-Locking Design
At the crossing of the main bar and ring, the CL-75 locks itself in place, eliminating displacement during concreting.
Applications
Double reinforced slabs
Heavy load-bearing slabs
Raft foundations
Industrial flooring where proper steel placement is critical
Technical Specifications – Crosslock CL-75
Type: Platform-type rebar chair
Cover Height: 75mm (distribution bar), 85mm (main bar)
Suitable Slab Thickness: 125–135mm (approx. 5 inches)
Maximum Bar Diameter: 25mm
Load Capacity: Up to 350kg per chair (3.5kN)
Material: High-strength injection-moulded plastic
✅ With Crosslock CL-75 Rebar Chair, engineers and contractors can eliminate the problems of bending, sagging, and uneven cover associated with steel chairs, stones, or bricks. It ensures structural accuracy, durability, and peace of mind in every concrete pour.
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