EN ISO 3378 Leather Crack Resistance Tester Grain Crack Index Mechanical Test Machine

Product Introduction

This instrument is suitable for measuring the anti-crack resistance of leather and the grain crack index. It consists of a fixture, cylindrical rollers, and core rods, etc. The fixture rigidly holds one end of the test piece, and is equipped with a cylindrical roller perpendicular to the axis, with a diameter of (25.0 ± 0.5) mm. The position of the roller is adjustable relative to the position of the handle. The core rods meet the standard requirements.

Compliant with standard

EN ISO 3378 Leather - Physical and mechanical tests - Determination of crack resistance and grain crack index

Test principle

Place the leather sample on a known-diameter mandrel and bend it outward under the minimum force required to maintain contact between the leather and the mandrel. This process causes the leather to become fragmented. Rotate the handle by 180° within 5±1 seconds. Observe the fragmentation during the bending process and pay attention to any cracks. If necessary, repeat the test with another mandrel. If the resistance to cracking on a specific mandrel is confirmed, the result will be either pass or fail.

Technical specifications

Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong,  is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent testing solutions to customers around the world.

Our products include

1.Plastic and Rubber Testing Equipment: Melt Index Tester, Impact Tester

2.Universal Testing Machine and Tensile Testing Machine to detect mechanical properties

3.UV Aging Tester

4.Environmental Testing Equipment: Climate Chamber, Temperature and Humidity Chamber

5.Vibration Test Machine

6.Differential Scanning Calorimeter

7.And other testing instruments such as Ink Proofer, Packaging and Printing Test Machine

Our products are widely used in plastics, rubber, wire and cable, new energy and other industries, serving more than 50 countries around the world.

With annual sales exceeding US$20 million.

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Dongguan Lonroy Equipment Co., Ltd. has repeatedly achieved success in the international market with its   superb technology and high-quality services.

Adhering to the corporate mission of “providing customers with   accurate testing instruments, enhancing product value; creating development opportunities for employees”,we look forward to creating a better future with global partners.