- On sale!

The purpose of the rotations expander is unversal. It can both be used as a training tool or as a warm up tool. It works on the principal of the interplay between centrifugal force and mass inertia. The faster the disc is accelerated and slowed down again, the bigger the applied force is. This way the aluminium disc can produce forces of 10 kg or more on the handgrip. It has ash wood handles for an optimum hold.
Antworks Rotant Linear (Ash Wood) – Centrifugal Power Trainer
SHORT STORY
Legend has it a forest-dwelling Viking once swung a sacred wheel of iron to awaken his arms before battle. The Rotant Linear echoes that ritual—simple, powerful, and designed to fire up your grip before you send.
QUICK SPECS
Weight: 150 g aluminium disc + ash wood handles
Dimensions & Material: Ash-wood handles; anodised aluminium disc with eight holes
Mechanism: Generates centrifugal resistance via rapid back-and-forth rotations—disc can reach 3,000–5,000 rpm
Resistance: Produces up to 20 kg force on handles depending on user input
Portability: Pocket-sized, ideal for pre-climb warm-ups and forearm activation
WHY CLIMBERS LOVE IT
Climbers praise its pocket-ready design and the visceral feedback it delivers—rotating disc resistance mimics real climbing tension. Whether woken-up pump or targeted shoulder warm-up, it’s compact yet effective. Built with quality materials and durable mechanics, it’s become a trusted companion for post-office pump and pre-send prep alike.
Skål to centrifugal fire, warm muscles, and gear that primes you like ancient warriors!
Product Features