Stretch wrap film is widely used in cargo packaging, and its tensile strength and elongation at break are key indicators for measuring its physical and mechanical properties, directly affecting the firmness of packaging and transportation safety. Insufficient tensile strength may cause the film to break during stretching or use, while low elongation at break may limit its wrapping compactness and adaptability. By testing these two indicators, it can be ensured that the stretch wrap film meets the usage requirements, improves product quality, and enhances market competitiveness.
There are various types of stretch wrap films, such as PE wrap film that is environmentally friendly and healthy, stretch wrap film with excellent mechanical properties suitable for large packaging and long-distance transportation, and PVC wrap film suitable for specific scenarios. Thanks to its excellent physical and mechanical properties, stretch wrap film is widely used for single piece or pallet packaging and bundling packaging of chemical raw materials, fertilizers, food, electromechanical products, textile products, etc.

Stretch wrapping film tensile strength tester
To ensure production quality, Jinan Ruilai Platinum needs to undergo key performance testing in accordance with the "BB/T 0024-2018 Stretch Wrapping Film for Transport Packaging" standard. This article will focus on introducing the testing requirements and methods for tensile strength and elongation at break, as well as the testing instruments for Rexroth.
BB/T 0024-2018 Testing Requirements for Stretch Wrapping Film for Transport Packaging
Sample specification: Type II specimen with a width of 15mm shall be used in accordance with GB/T 1040.3.
Test conditions: fixture distance: 50mm; gauge length: 50mm; test speed: 250mm/min ± 25mm/min; Qualification criteria: One group each in the vertical and horizontal directions, with no less than 5 samples in each group. Take the arithmetic mean, accurate to 0.1N.
Can use testing instrument: Ruilai Platinum's stretch winding film tensile strength tester DL-07

Test method for tensile strength tester of stretch wrap film
1. Sample preparation:
After unwinding for 1 meter, start cutting the sample uniformly at equal intervals along the length or width direction.
Avoid contaminating or damaging the sample, do not touch it with bare hands, and mark the surface of the sample or on it.
Separate and protect the inner and outer sides of each sample with writing paper, and mark the inside and outside as well as the longitudinal and transverse directions on the paper.
2. Experimental steps:
Fix the sample on the fixture of the tensile strength tester for stretch wrap film, with a fixture distance and gauge length of 50mm.
Stretch the stretch wrapping film with a tensile strength tester at a speed of 250mm/min ± 25mm/min, and record the tensile strength and elongation at break.
Test 5 samples vertically and horizontally, take the average, and the result is accurate to 0.1N.
3. Ruilai Platinum DL-07 Stretch Wrapping Film Tensile Strength Tester:
Support precise fixture distance and speed control.
High precision force sensor ensures accurate and reliable data on tensile strength and elongation at break.
Equipped with an intelligent data analysis system that automatically calculates the average value to improve testing efficiency.

Stretch wrapping film tensile strength tester
4. Ruilai Platinum's detection solution and technical strength
As a technological pioneer in the field of thin film testing, Jinan Ruilai Platinum not only provides professional instruments for testing the tensile strength and elongation at break of stretch wrapped films, but also offers a complete solution for the testing of thin film materials. The DL-07 tensile strength tester developed by the company strictly complies with the requirements of "BB/T 0024-2018" and "GB/T 1040.3", and is widely used for performance testing of various materials such as PE winding film and PVC winding film. In addition, Ruilai Platinum also provides testing instruments for peel strength, impact performance, sealing, etc. to meet the needs of film packaging.
Jinan Ruilai Platinum, with years of technological accumulation and innovation capabilities, has developed thin film detection instruments that have been validated by multiple industry standards and serve domestic and foreign packaging enterprises. The company not only provides single equipment such as DL-07 tensile strength tester for stretch wrap film, but also offers a complete set of testing solutions for stretch wrap film production enterprises from tensile performance to sealing and impact performance, helping enterprises optimize product quality and ensure the safety of goods during transportation and storage.