Overview
PN-NZ135F MIT Folding tester is a paper folding resistance testing instrument developed by PNSHAR brand according to the national standard GB/T 457 and ISO 5626. The instrument is suitable for the folding performance testing of paper, Cardboard and other sheet materials with a thickness of less than 1.25mm. The folding resistance of the material is evaluated by measuring the number of double folds when the sample is broken. It is of great significance for the durability evaluation of Encasement parts such as carton shaking covers. Its mechanical transmission and tension mechanism are well designed and suitable for papermaking, Encasement, scientific research and product mass supervision and inspection industries.
Features
1. Adopt new module circuit design, with WIFI Internet of Things function, can save test results to Cloud as a Service and query and generate reports through dedicated QMS quality management system.
2. Fully automatic measurement, with intelligent judgment function.
3. The folding chuck automatically returns after each experiment, making it easy to operate.
4. With data statistics function, it can display the average, MAX Maximum, MIN Minimum, Standard Deviation and Coefficient of Variation.
5. Compact structure, Appearance, Easy maintenance.
Principle
The mechanical part of the instrument includes a motor drive part and a tension mechanism part. The motor controls the chuck to rotate 135 ° to the left and right through the connecting rod, and the speed of the motor is controlled by the governor and the circuit. The tension mechanism deforms the spring by pressing down the tension rod, and the formed spring tension (adjustable between 4.91N and 14.72N) applies force to the test paper sample. The instrument detects the number of double folds of the test paper sample through the photoelectric circuit and counts it. When the sample breaks, it automatically stops. At the same time, the automatic return of the folding chuck is realized through the photoelectric circuit detection.
Applications
Papermaking, Encasement, Scientific Research, Product mass supervision and inspection
Standards
GB/T 457、ISO 5626、TAPPI T511、QB/T 1049
Steps
Prepare specimens that meet specifications (width 15 +/- 0.1mm).
2. According to the thickness of the sample, choose the appropriate folding gap distance (0.25mm, 0.50mm, 0.75mm, 1.00mm, 1.25mm).
3. Adjust the spring tension within the range of 4.91N to 14.72N.
4. Install the specimen on the instrument chuck.
5. Through the Touchscreen start test, the instrument automatically folds at 135 ° at a speed of 175 +/- 10cpm.
6. After the sample breaks, the instrument automatically stops and counts, and the chuck is automatically reset.
7. View or print test results and statistics through Touchscreen.
Notice
• The instrument should work in an environment with indoor temperature (20 +/- 10) ° C and relative humidity < 85%.
• Power supply voltage is AC220V +/- 10%, 50Hz.
• Make sure that the thickness of the sample does not exceed 1.25mm.
• Before testing, please set the spring tension and the distance between the cracks correctly according to the standard requirements.
• Net weight of the instrument is about 23.2kg, and safety should be paid attention to when handling and placing.
• Regular maintenance to ensure instrument accuracy and Stability.
