Stranding Lines

Rigid Stranding Machine


Designed to produce low relaxation pre-stressed concrete (L.R.P.C.) strand under all the international standards
From 6.3 mm (1/4”) to 28.6 mm (1-1/8”) strand diameter range
Possibility to produce, with a dedicated kit, galvanized wire strand
Bow skip strander:
DIN1120 or DIN1250 spools
From 1+2 to 1+6 wires
Possibility to install an additional 12 wires planetary or tubular strander to have 1+6+12 wires
Nappoo have high quality tensioning-cum-brake system of the spools to allow perfectly controlled back tension on wires for high quality strands
Thermo-mechanical stabilization:
Double Sets of Double wheeled units of pulling capstans, up to 50 tons pull, with load cell feedback
Induction movable furnace (from 6.,000 to 9,500 kg/h)
High efficiency cooling tank
Double synchronizing unit
Double spool take-up/pay-off:
the first working as take-up of the low relaxation line
the second working as pay-off to collect strand on final package
Layer winder:
single or double position
constant speed at 400 m/min
Possibility to add a sheathing process, for the production of PE coated PC Strand, bonded or unbonded


Projects Handled


Happy Customers


Years of Experience


Take your business to the next level with us at Nappoo, where our professionals would be glad to help you at every step.