Power Post Claw Grip
The Power Post Claw Grip is a hardened steel anti-slip attachment weighing 1 kg (code 74441) that fits to the base of a Combisafe Power Post when friction erection is used. Friction erection holds a post in position by compression between two surfaces. The risk with this method is that the base of the post slides sideways on the lower contact surface before full compression is achieved. The Claw Grip's hardened steel teeth bite into the surface at the base contact point, preventing lateral slip during tightening and throughout the service life of the installation.
In edge protection scaffolding applications where the Power Post is used against concrete slab edges, the lower contact is typically a concrete surface that may be slightly damp, dusty, or have surface laitance. These conditions reduce the friction coefficient below the level needed to prevent slip during compression. The Claw Grip addresses this by providing a mechanical grip that is independent of surface friction, giving a consistent anti-slip performance across a range of concrete surface conditions.
The weather-resistant construction of the Claw Grip maintains grip tooth performance in the wet conditions typical of UK construction sites. The product is designed to be used with the Power Post Foot, which provides load distribution at the base, and the full Power Post system. Altrad Generation supplies the Power Post Claw Grip through its UK and Ireland branch network.
Key features and benefits
Hardened steel teeth provide mechanical anti-slip grip at the Power Post base contact during friction erection
1 kg unit (code 74441) adds minimal weight to the Power Post assembly
Prevents lateral base slip on concrete surfaces affected by dampness, dust, or surface laitance
Anti-slip performance is independent of surface friction coefficient, giving consistent results across surface conditions
Weather-resistant construction maintains grip tooth performance in wet UK site conditions
Designed for use with the Power Post Foot for complete base load distribution and anti-slip protection
Supports compliance with site safety requirements for friction-erection edge protection systems
Available through Altrad Generation's UK and Ireland branch network
Frequently asked questions
Q: What is friction erection in edge protection?
A: Friction erection is a method of installing edge protection posts by compressing the post between two structural surfaces until the friction force generated by the compression load holds the post in position. The Combisafe Power Post uses this method, with the compression thread tightened via the hex head to expand the post length. The Claw Grip is fitted at the base contact point to provide additional anti-slip security where the surface friction alone is insufficient to prevent lateral movement during installation.
Q: Why does a Power Post need a claw grip?
A: During friction erection, the base of the Power Post is in contact with a lower surface while the compression thread is tightened. Before full compression is reached, the base contact force is lower than at the end of the tightening process, which means the base is more likely to slide laterally on the surface. The Claw Grip's hardened steel teeth engage the lower surface mechanically as soon as the post is placed, providing anti-slip resistance from the start of the tightening sequence. This reduces the risk of the post shifting during installation.
Q: How do you prevent scaffold posts from slipping?
A: For friction-erection Power Posts, the Claw Grip is the primary anti-slip measure at the base contact. The Claw Grip is paired with the Power Post Foot for load distribution on concrete slab edges. The compression level should be set and then re-checked after the slab has started to relax, using the visible load indicator through the mesh barrier to confirm that compression is maintained. Regular inspection of the compression setting at each scaffold inspection is part of the maintenance requirements for friction-erection edge protection systems.
Get in touch with us
To purchase the Power Post Claw Grip, contact your nearest Altrad Generation branch. Our teams across the UK and Ireland provide advice on the full Power Post system and ensure your site has the correct components for safe friction-erection edge protection.
