LFY-218B Nail Hammer Wire Gripping Testing Instrument

Main application
The LFY-218B nail hammer wire drawing tester suspends a nail hammer on a chain and passes it around the guide rod to be placed on the surface of the sample wrapped around the rotating drum. When the drum rotates at a constant speed, the nail hammer randomly flips and jumps on the sample surface, causing the sample to be wire-drawn. It is used to evaluate the wire-drawing degree of outerwear knitted fabrics and other fabrics prone to wire-drawing. It is particularly suitable for synthetic fiber long fibers and their deformed yarn fabrics. The instrument has 4 working positions and can simultaneously test 4 samples. Each position has an independent switch.

Technical indicators
1. Transmission method: Motor drive
2. Drum rotation speed: (60 ± 2) r/min
3. Set rotation range: 0 - 9999 r
4. Drum diameter: ￠82mm; Width 210mm
5. Nail hammer weight: (160 ± 10) g
6. Number of nail hammer pins: 11
7. Exposed length of nail: 10mm; Tip radius R0.13mm
8. Thickness of felt: 3mm - 3.2mm; Width 165mm
9. Working width of guide rod: 125mm
10. Distance between nail hammer and guide rod (chain length between nail hammer and guide rod): 55mm
11. Number of workstations: 4 workstations or single workstation
12. Power supply: AC220V, 50Hz, 120W
Applicable standards
GB/T 11047-2008 Textiles - Evaluation of fabric combing performance - Nail hammer method