1、 Overview of the main unit of wire winding and torsion testing machine
The wire winding and twisting test machine is suitable for the GB4909.4-2009 "Bare Wire Test Method - Twisting Test" and GB4909.7-2009 "Bare Wire Test Method - Winding Test" standards, and is used in situations where aluminum wire, steel wire, and copper rod need to undergo winding and twisting tests. It is an essential testing tool for steel cored aluminum wire manufacturers.
2、 Main technical parameters:
Twist: 1. Dimensions: 1440mm × 390mm × 1080mm
2. Input voltage: 380V
3. Input power: 1.5KW
4. Twist adjustable range: 10 revolutions per minute, 30 revolutions per minute, 60 revolutions per minute
5. Twisting range: (1) Copper rod: ￠ 8mm
(2) Aluminum pole: ￠ 6mm
(3) Steel wire: ￠ 4.2mm
Winding: 1. Test diameter: Aluminum wire: ￠ 1.25mm - ￠ 6.0mm
Steel wire: ￠ 1.25mm - ￠ 3.8mm
Copper wire: ￠ 0.3mm - ￠ 8.0mm
2. Core rod diameter: ￠ 1.25mm - ￠ 19mm
3. Right axle head displacement distance: ≥ 40
4. Spindle speed: 10 revolutions per minute

3、 Sample collection
According to the requirements of GB4909.4-2009, there shall be no mechanical damage on the surface of the specimen, and the specimen shall be calibrated.
Sample length=effective length+clamping length
Effective length: determined based on the diameter of the sample and the standard.
Clamping length: The clamping length of two clamps is generally about 60-70mm