Bally Resistance Flexing Tester – An Effective Method for Testing Material Flexing

Bally Resistance Flexing Tester (also named Bally Leather Flexometer) is specialized laboratory equipment built to determine the resistance of flexible raw materials to cracking or other mechanical failures generated at flexing creases during repeated bending cycles. This standardized testing methodology is applicable to all flexible materials and in particular leathers, coated fabrics and textiles commonly adopted for footwear uppers across footwear production industries.

The core testing goal of this Bally Leather Flexing Tester is to reliably simulate long-term repeated bending wear the material receives in real service scenarios, so manufacturers can verify the flex durability and quality stability of raw upper materials before formal mass production.

Compared with alternative flex durability testing equipment, the Bally Resistance Flexing Tester delivers multiple core advantages for material QC labs:

• • High Testing Accuracy & Repeatability: Fixed oscillating angle and preset flex speed ensure uniform test environment, making test data consistent across repeated specimen batches.

• • Universal Standard Compliance: Two interchangeable upper grip sets cover most global mainstream international, regional and domestic testing standards, satisfying diversified certification demands for exported products.

• • Cost-Efficient Raw Material Screening: Early flex failure detection helps factories eliminate unqualified raw materials before cutting and production, cutting down finished product rejection rate and overall manufacturing cost.

• • Simple Visual Damage Assessment: Test damage can be directly checked via naked eyes at scheduled flex intervals without complicated auxiliary detection tools for routine quality grading.

• • Wide Material Versatility: One single tester fits leather, coated fabric, synthetic leather and textile upper materials widely used in shoe uppers, bags and apparel accessories.

You need to pick matching test specimen based on end-use product requirements; these materials are the most commonly tested Bally flexing tester:

Natural Leather: Full-grain leather, split leather widely used for formal shoe uppers, casual footwear and leather bags.

Coated Fabrics: PU/PVC coated synthetic leather, artificial coated textiles for footwear uppers and casual apparel.

Woven & Non-woven Textiles: Fabric uppers for sports shoes, canvas footwear and soft lining materials of leather goods.

After going through all that Bally resistance flexing testing entails together with the associated standards, you can now perform material flexing evaluations that meet the industry requirements. You will also achieve reliable test results and quality product validations.

For all your material testing equipment needs, working with a trusted supplier ensures you get instruments that comply with the required standards. For any inquiries, contact our specialists now.

What is the Bally flexometer test?

The Bally flexing test is a testing procedure to evaluate materials’ resistance to cracking or flex-induced failure along creases. Specimens are folded, fixed at 90° between two clamps and cyclically flexed via repeated clamp oscillation. Inspectors check material damage visually at set cycle intervals, and tests can run under dry or wet ambient conditions for flexible materials like leather, coated fabrics and shoe upper textiles.

What is a Bally Resistance Flexing Tester used to measure?

This Bally flexometer measures the flex crack resistance and flex fatigue failure performance of flexible materials, detecting crack generation and structural damage occurring after repeated bending cycles, mainly for leathers, coated fabrics and footwear upper textiles.

What is the Bally Leather Flexing Tester method?

Fold test specimen in half, secure one end in the first clamp, invert the sample and fasten its free end to a second clamp positioned 90 degrees apart. The first clamp oscillates at a fixed angle and speed to repeatedly bend the specimen. Record flex cycles periodically and visually examine specimen damage; tests are available for both dry and wet samples at ambient temperature.

What is the standards of Bally Resistance Flexing Tester?

Two sets of upper grips match different standards:

Type A grips: SATRA TM 55, IULTCS/IUP 20, ISO 17694, EN 13512, EN344, EN ISO 20344, GB/T20991, AS/NZS 2210, JIS-K6545, BS 3144

Type B grips: ISO 32100, DIN 53351, ISO 5402, GE-24, ASTM D 6182, EN ISO 20344