The crane cabs of the larger models are mounted at heights of over 30 metres. For this reason, a lift comes as standard to give a fast and safe passage to the operating cab. A display in the crane cab shows load and radius data. The crane can also be controlled using the remote control. This gives the crane operator a very precise control of the machines at all times.
The CLT spring driven cable reel supplies both power and signals to the lift ensuring reliable and safe operative conditions. The concept of the new Cavotec Alfo CLT reels is to provide a modular system that retains all the quality and reliability of a standard spring driven cable reel. The Alfo CLT reel is really the first product available in components. At least four single components are necessary to get a spring operating cable reel: drum body, drum walls, slipring body and connecting flange.
Built from modular components, the Cavotec Alfo CLT spring reels allow a great number of combinations covering most common requirements. The spring reels are strong and well designed in order to guarantee the highest reliability even in difficult applications. All reels are equipped with two, totally sealed bearings which are lubricated for life.
Moreover, Cavotec Alfo has been the first manufacturer to build its sliprings in a totally sealed and modular unit, fully separated from the mechanical parts. Protection of sliprings and reel is IP65/66.
?Massimo Rustioni of Cavotec Alfo explains: “In this case the modular design allows for easy storage and thanks to the innovative design of the reels, replacing just one part is extremely easy. That reel does work exactly as a standard spring reel. The installation flange fits to the same as a standard reel – a replacement of that system is also very easy.”
The springs are made of special high-grade steel which guarantees a long lifetime. Every spring is mounted inside a spring housing in order to avoid friction and wear. The slipring assembly is mounted in a solid glass fibre reinforced plastic housing that can withstand corrosion and mechanical wear. The housing is designed to minimise condensation and to guarantee complete water tightness through glands and seals.
Corrosion protection is also an important feature of Cavotec Alfo reels. All steel plates and parts are either hot dip galvanised or have a polyester coating.
Cavotec Alfo offers, as an option, all external parts such as screws, nuts and bolts in stainless steel. Warranty according to the general delivery conditions of the electric industry for products and services is guaranteed.
Cavotec’s CLT spring driven reel, as used by Spierings Cavotec CLT
