Introduction
1) Used in unidirection and bidirection torsion tests for metal wires,copper wire,aluminium wire and composite wires, diameter Ф0.1～Ф10.0mm.
2) Used to measure plastic deformation capacity of metallic wires and composite wires during unidirection and bidirection torsion and display surface and interior defects.
3) Wire is wrapped on the mandrel for specified number of turns and then check the surface defect of the wire.

4) Zinc coating adhesion test.

5) Torsion and wrapping tests can be made on the machine.

Technical Specification

No. Items NDW-JR3 NDW-JR6 NDW-JR10
1 Wire diameter(mm) Φ0.1-Φ3.0 Φ0.1-Φ6.0 Φ0.1-Φ10.0

2 Coaxiality of two collets (mm) ＜Ф0.1 ＜Ф0.1 ＜Ф0.1

3 Straightness of sliding fixture(mm) ＜0.2 ＜0.2 ＜0.2

4 Max.distance between two chucks(mm) 500 500

5 Torsion speed(r/s ) 5.0; 3.0; 2.0; 1.5; 1.0; 0.5; 0.25; 0.1

6 Counting resolution 360°/r

7 Clamps hardness HRC55～65 HRC55～65 HRC55～65

8 Loading weights 2% of nominal tensile strength

9 Working voltage 220V/50Hz 220V/50Hz 220V/50Hz

10 Dimension(L*W*H)(mm) 1500x560x950