The Niehoff D631 is a high-performance double-twist bunching machine
designed for the production of copper strands and the stranding of
insulated wires. By 2014, this model was well-established for its
"Eco-Bow" energy-saving design and high precision in spooling.
Production Performance
- Max. Production Speed: 300 m/min
- Max. Number of Twists: 6,500 twists/min
- Cross Section Range (Cu soft): 0.09 – 6.0 mm²
- Lay Length (Infinitely Variable): 6 – 100 mm
- Twist Direction: S or Z
Spool & Winding Dimensions
- Max. Spool Flange Diameter: 630 mm
- Total Spool Width: 475 mm
- Max. Spool Capacity: approx. 750 kg
- Core Diameter: 224 mm – 250 mm
- Bore Diameter: 56 mm
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