Technical information Crab range

6 6 H é l i c r a b s p i r a l s t a i r c a s e U s e r m a n u a l This worksite staircase is based on a four standard Multicrab tower. It can be freestanding or erected as part of a scaffold and is ideal for use in tight spaces where the small footprint (1.5 m x 1.5 m) makes it easy to install. There are three main components < 15kg for the Hélicrab staircase which can be easily stacked by hand, without using lifting equipment, and three components for safe erection. No bolts are required. It is 100% compatible with the Crab system to provide almost unlimited combinations of safe and convenient entries and exits at any height at intervals of 0.50 m. The MDS guard rails are fitted as the staircase is erected to provide collective security during erection and dismantling. Hélicrab is designed for safe erection inside a Multicrab tower Compliant with standard NF P 12811-1 Load-bearing capacity compliant with standard NF P 93-521 ( access to a work station) Adjustable baseplate Basic standard Crabétai baseplate Two step flight 3.00 m standard Three step flight 2.45 m diagonal brace 1.50 Ledger 1.72 m diagonal brace Hélicrab MDS guardrail Standard for guardrail Reinforced ledger 1.50 m Panacier Toeboard 0.70 m Panacier 1.50 m 1.50 m 01.01.17