The PN-BSTF smoothness Tester is a high-precision Bekk-style paper and cardboard surface smoothness testing instrument designed and developed in accordance with the national standards GB/T456 and ISO5627. Smoothness is an index that evaluates the unevenness of the paper surface. It indicates the flatness and smoothness of the paper surface. Smoothness usually refers to the smoothness of paper, which refers to the time required for a certain amount of air to escape between the sample surface and the annular surface under a specific contact state and a certain pressure difference, measured in seconds ( s) means. The longer the time, the smoother the paper and the higher the smoothness. Generally speaking, the smoother the paper, the better the printing quality. Therefore, smoothness is a necessary condition to obtain satisfactory printing quality.
This instrument uses a high-precision pressure sensor, imported oil-free Vacuum Pump, volume block and solenoid valve to form a measurement and control system, achieving mercury-free measurement. A lever mechanical loading is applied to the machine and a cam mechanism is used to unload it. The instrument has functions such as testing, conversion, display, memory, printing, and data processing, and is characterized by easy operation and stable performance.
1. Adopt new module circuit design, with WIFI Internet of Things function. After being connected to the Internet, the test results can be saved to the cloud server, and can be queried and generated through the dedicated QMS quality management system;
2. Lever plus cam clamping mechanism, very easy to operate.
3. It has statistical function, and statistics can display the average value, maximum value, minimum value, standard deviation and coefficient of variation;
4. Modern design concept, compact structure, beautiful appearance and easy maintenance.
GB/T456, ISO5627, TAPPIT479