The tensile testing machine is a mechanical testing device for mechanical strength testing of metal materials and non-metal materials for static load, tensile, compression, bending, shearing, and peeling. Commonly used in rubber, plastics, textiles, waterproof materials, wire and cable, wire rope, wire, metal rods, plates and other materials tensile test. For flexible packaging manufacturers, the tensile testing machine is an indispensable testing instrument. What aspects do soft packaging manufacturers need to consider when purchasing a tensile testing machine?

Flexible packaging requires a multi-purpose tensile testing machine, which can be used for stretching, compression, bending, tearing, shearing, 180° peeling, and 90° peeling test on the basis of different fixtures. In the market, there are some high-end tensile testing machines. In addition to the above items, the friction coefficient can be tested because of the high precision of the sensors (some of which reach 250,000).

The main cost of the sensor lies in the life span. Photoelectric induction is a technology in which the advanced generation is improved. Generally, it can be used more than 100,000 times. Of course, these are just the basic maintenance methods of the mainstream tensile testing machine (tension testing machine), and each model maintenance is also different. Here is only a reference. Please refer to the details for the detailed model.

The lead screw has a decisive effect on the measurement of the pull precision. Generally there are ball screws, trapezoidal screws, and general screw. Among them, the ball screw has the highest accuracy, but its function can be operated by computer servo system, and the whole price is relatively expensive. The precision required for flexible packaging, that is, 0.5-1% accuracy, can be achieved with a general lead screw and a lead screw.

Transmission, screw drive and rack drive, the former is expensive, high precision, high test repeatability; the latter is cheap, low precision, low test repeatability.

Then there is to consider the maximum test force of the tensile testing machine.
The difference in the range of tension determines the difference in the sensors used and determines the structure of the tensile testing machine. For general flexible packaging manufacturers, the tensile tester's tensile force range is 100N. Generally, a single arm type is sufficient. The cost is lower than the gate structure. The door structure is adapted to a relatively large pulling force, such as 1T or above.