Scope of Application

【Operating Instructions】

Used for testing the torsional strength of various zipper pullers.

**YG822 Zipper Torsion Tester**

**【Scope of Application】**  

Used for testing the torsional strength of various zipper pullers.

**【Applicable Standards】**  

QB/T 2171, QB/T 2172, QB/T 2173

**【Instrument Features】**  

1. Touch screen control with a concise and user‑friendly interface — easy to operate, sensitive

 response, and switchable between Chinese and English.  

2. The torsion fixture is made of stainless steel, offering a clean and elegant appearance.  

3. The rotation mechanism uses a low‑noise gearbox, ensuring stable operation and very low noise.  

4. Three test modes: torsion to break, constant angle, and constant load.  

5. Can be connected to a computer and printer.  

6. All test data can be queried without connecting to a computer.  

7. Microcomputer control — automatic testing, result calculation and analysis, and data printing.  

8. Units can be switched (cN·m and N·m).

**【Technical Parameters】**  

1. **Torque range:** 5.000 N·m (500 cN·m)  

2. **Torque accuracy:** 0.1 cN·m  

3. **Torsion angle:** ±150°  

4. **Torsion angle accuracy:** 0.1°  

5. **Torsion speed:** 0.5 – 2.0 r/min  

6. **Reduction ratio:** 20:1  

7. **Power supply:** AC 220 V, 50 Hz, 100 W  

8. **Dimensions:** 460 × 410 × 550 mm  

9. **Weight:** 50 kg