Wire sheathing line + the SZ process for the construction industry

SAMP, a leader in wire and cable manufacturing solutions, has developed an innovative wire sheathing line that incorporates the SZ stranding process, specifically designed for the construction industry.

This patented system has been engineered for in-line sheathing of pre-assembled cables with various thermoplastic materials using the SZ group and enables high-speed manufacture of flexible cables. Designed with a dedicated extrusion group, cables are stranded at the point of extrusion; conductors and filler are then separated by a fine layer of plastic material, meaning that traditional talc powdering stations are no longer required. A submerged torsion-locker caterpillar keeps the cabling in place as the plastic sheath cools immediately after the extrusion group. It is therefore possible to keep the pitch and still produce at surprisingly high speed.

Process types

• Co-extrusion: simultaneously filling and sheathing
• Tandem extrusion: two extrusion groups, one for filling and one for sheathing

Line types

• BS B1: SZ group, co-extrusion filling/sheathing system
• BS B2: SZ group, 2 tandem extruders for tandem filling/sheathing and filling+sheathing+skin
• BS B3: SZ group with patented system and 2 tandem filling/sheathing extruders

Technical features and advantages

• Reduction of production times by incorporation of 2 processes (laying-up and sheathing)
• Production flexibility that allows using different materials
• Non-stop production without the need for reel changeover 
• Different pulling elements like dual capstans and caterpillar
• Wide range of solutions for pay-off/take-up
• Automatic double coilers
• Conductor types: solid (Class 1), stranded (Class 2), bunched (Class 5)
• Conductor sections: 0.5 to 16.0 mm²
• Maximum wire diameter: 30 mm
• Number of wires: up to 7 wires of 6 mm² each
• Filling materials: EPDM
• Sheathing materials: PVC, PE, HFFR
• Maximum speed: 400 m/min

For more information or to request a product catalog of the wire sheathing line with SZ stranding process for the construction industry, we invite you to contact SAMP via the references provided.