1. Product Introduction
The folding endurance tester is a special instrument for measuring folding fatigue strength of paper, paperboard and other sheet‑shaped materials. It is designed according to internationally‑accepted MIT folding endurance principle. Adopting photoelectric control technology, the folding chuck can automatically return to home position after each test for convenient next‑time operation. It is equipped with powerful data processing functions: it can convert double‑fold times of single specimen and corresponding logarithmic value (folding endurance), and statistically process test data of multiple specimens in one group, including maximum value, minimum value, average value and coefficient of variation. All data are stored in microcomputer and displayed on screen. Controlled by precision motor for accurate positioning. Featuring advanced technology, complete functions, reliable performance and easy operation, it is ideal test equipment for paper‑making, packaging, scientific research, product quality supervision and inspection industries.
2. Technical Parameters
- Measuring range: 0~99999 times
- Folding angle: 135±2° (30~135°, stepless digital adjustment)
- Folding speed: Standard: 175±10 times/min (20~200 times/min, stepless digital adjustment)
- Spring tension: 4.9~14.7 N; spring compresses at least 17 mm per additional 9.8 N tension
- Tension variation caused by rotating eccentricity of folding chuck: ≤0.343 N
- Folding head width: 19±1 mm
- Crease radius R0.38±0.02 mm (customizable R‑angle for glass‑fiber and other materials)
- Gap width of folding slot: 0.25 mm / 0.5 mm / 0.75 mm / 1.00 mm (customizable chuck for glass‑fiber and other materials)
- Standard weights: 4.9 N, 9.8 N
- Man‑machine interface: 5‑inch color LCD touch screen, real‑time display of folding cycles
- Print output: Integrated modular thermal printer
- Working environment: Temperature (0~35) ℃, humidity＜85%
- Overall dimension: 330×350×450 mm
- Weight: 35 kg
- Power supply: AC220V, 50Hz
