Textile Tear Tester

I. Overview
The Elmendorf electronic tear strength tester is used to test the impact tear strength of textiles and paper. It can detect the strength under 800-6400CN impact force, which corresponds to a specific drop hammer. This instrument adopts a LCD screen display and automatically detects and analyzes data. This electronic tear strength tester has the characteristics of high testing accuracy, reliable performance, and simple operation.
All performance indicators of this electronic tear strength tester meet the relevant requirements of GB/T3917.1-2009. Suitable for measuring the tear resistance of various woven fabrics. It can also be used for measuring the tear resistance of thick paper, plastic cloth, electrical tape, etc.
Standard: BS 4253 ASTM D1424 DIN 53862 NEXT 17
2、 Main features
This instrument adopts a LCD screen display, which is easy to operate and switch units such as N, cN, gf, cP, etc..
2. This instrument uses a microprocessor to automatically detect, calculate, and display experimental results; This instrument has the characteristics of high testing accuracy and reliable performance.
3、 Main technical parameters
1. Tear force test range: 0-16N (A hammer)
0-32N (B hammer)
0～64N（C 锤）
2. Test accuracy: ≤± 1% F • S
3. Cut length: 20 ± 0.2mm
4. Tear length: 43mm
5. Cut length: 20 ± 0.2mm Sampling template: 100mm × 75mm
6. Power supply: AC220V/50Hz 20W
7. Dimensions: 520 × 300 × 580mm
8. Instrument weight: 32kg
9. Working environment and conditions
The optimal operating environment for the instrument is a temperature and humidity range of 10 ℃ to 30 ℃ and 70% RH.
A place with no vibration, no corrosive, flammable, or explosive media, no strong electromagnetic interference, and good ventilation in the surrounding environment.
Grounding requirement: The grounding resistance should be less than 6 Ω.
Power supply: AC single-phase 220V ± 10% 50Hz
4、 Instrument working principle

Raise the heavy hammer to a certain height, which has a fixed potential energy; The gripper clamps the sample, releases the heavy hammer, and the heavy hammer swings freely to tear the sample. The kinetic energy of the pendulum after tearing the sample is obtained by the control system. The energy consumed to tear the sample is calculated by the law of conservation of energy, and the force required to tear the sample is obtained through the P=FS formula.