Catamaran crossbeam Z840

Overview
The Z840 is a new-generation crossbeam designed specifically for modern catamarans. Engineered in CAD for weld-free assembly and fully machined on 5-axis CNC equipment, it combines optimized profiles and components to reduce weight while increasing structural performance.

Technical information

• Product name: Z840
• Dimensions: 240 mm x 140 mm
• Moment of inertia (long): 1229 cm4
• Moment of inertia (lat): 620 cm4
• Weight: 8.7 kg/m
• Manufacturing: CAD-designed for assembly without welding; fully machined on 5-axis CNC

Materials

• Beam profiles and chainplate extrusions: 6005A T6 aluminium alloy
• Stainless steel components: AISI 316 grade
• Only the forestay attachment, beam tie-rod, trampoline sliders and beam-to-chainplate connection pins are made of stainless steel to limit galvanic interaction

Key features

• Profiles optimized to minimise chafe points; tie-rod end fittings and chainplates integrated into the beam
• Anti-slip grooves on the upper surface for safer deck operations
• Beam dolphin striker produced from thick round tubing to reduce sail chafing
• Design focus on reduced electrolytic corrosion between aluminium and stainless steel
• Supplied with traceability labels