Analysis of experimental operation steps of zipper fatigue test
1. Instructions for use Whether the luggage zipper reciprocating fatigue testing machine can withstand a specified number of reciprocating pulling operations under the action of the transverse and longitudinal tension of the zipper. During the test, the machine drives the zipper puller at a constant speed for 30 times per minute Reciprocating motion until the specified number of times. Luggage zipper reciprocating fatigue testing machine technology is designed to perform static and dynamic two-way testing of shaft materials, applications include tension compression technology and fatigue testing or high utilization rate. The load frame structure is designed for axial/application maximum torsional stiffness. 2. Testing equipment The zipper fatigue testing machine is used to test the fixing strength of buttons and buttons. It consists of concave clawless pliers, bottom fabric pliers and Imada push-pull force meter. The button parts are fixed by concave clawless pliers, and the clothes are fixed by bottom fabric pliers. By rotating the upper speed control wheel, the user can apply a fixed force and record the fixed force or breaking force. Using clamps and accessories, the instrument can also test other buttons, denim buttons, four-hole buttons and clothing accessories, such as zippers, bow ties, decals, hooks, D-rings, etc. 3. Meet the standard ASTM D7142-2/F963, CFR 1500, EN 71 PART1, GB 6675, ISO 8124, Mu0026P P115A 4. Technical parameters Reciprocating stroke: 75MM Horizontal clamping device width: 25MM Longitudinal clamping device total weight: 0.28~ 0.34kg The distance between the two clamping devices: 6.35MM The angle of the test piece teeth: 60 The angle of the test piece: 30 Counter: Electronic 999999 Volume: 28X55X66cm Weight: 35kg V. Test method The standard of the rated load frame of the luggage zipper reciprocating fatigue testing machine Equipped with a four-force torque configuration, each unit provides complete facilities, including linear and rotary actuators, servo valves, service manifolds and sensors. Six, instrument features 1. Chrome-plated column---long service life, easy to change the position of the beam. 2. Infinitely adjustable beams---the crosshead can be adjusted vertically with unlimited resolution. The torque wrench that keeps the rebound position of the beam is free to tighten the bolt or hydraulic fail-safe lock. 3. Crossbeam hydraulic control---The positioning of the crossbeam by friction with the clamp hydraulic bolts is the standard configuration of all models. A beam movement control panel, using simple controls you unlock, raise or lower and lock the beam. The design ensures that the hydraulic power is suddenly cut off, and no harmful beam motions will be generated. 4. Extremely precise alignment --- 0.0015 inch @ 15 inch and .002in/ft behind the concentric circle of the actuator and load rod cell. 5. Displacement sensor --- The actuator has a common axial installation on the piston rod LVDT. The rotator is protected by an external RVDT enclosed metal cabinet. This design not only ensures the accurate displacement signal of the sensor and control system. 6. Extremely sturdy structure --- No intermediate threaded joints or compression joints are used and the load is transmitted to the beam, directly in the test. 7. Simplified maintenance---The entire load train is included in the base assembly, and maintenance is simplified for the convenience of arranging. Seven, instrument options 1. Hydraulic beam lock --- hydraulically operated beam lock can be used in all models. 2. Vibration isolation mount---Vibration or dynamic test can generate unnecessary noise and vibration, which can be transmitted to the laboratory floor. The isolation pad according to the load cell helps to reduce noise and vibration suppression. 3. Safety enclosure --- The safety enclosure can be installed around the test area to protect the operator during the destruction test. 4. Driver selection---Different displacements and valve actuators are available, as well as power ratings for customers. Service valve group, servo valve and hydraulic power supply are selected on the basis of medium and application. 5. Accessories----Choose various power ratings from fixtures, fixtures, extensions, larger power supplies and various sensors. More about zipper fatigue testing machine: http://www.standard-groups.com/OfficeFurniture/
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Cut resistance is one of the most critical performance indicators in personal protective equipment (PPE) testing, directly affecting worker safety in high-risk industries such as metal processing, machinery manufacturing, and emergency rescue. The TDM Cut Test Machine GT-KC28 plays a vital role in accurately evaluating the cut resistance of PPE products, including gloves, protective clothing, footwear materials, composite materials, rubber, and industrial textiles.
By adopting high-precision force control systems, intelligent data processing, and stable transmission technology, the GT-KC28 TDM Cut Tester can accurately measure the critical cutting force of materials and ensure excellent repeatability and comparability of test results. Its user-friendly touch-screen operation, comprehensive data storage, USB data export, and built-in thermal printer greatly improve laboratory efficiency and data traceability.
The TDM Cut Test Machine GT-KC28 fully complies with major international and national standards such as ISO 13997, EN 388, ASTM F2992/F2992M, ANSI/ISEA 105, and GB 24541-2022, making it a reliable solution for PPE manufacturers, third-party testing laboratories, and research institutions. Through precise and standardized cut resistance testing, the GT-KC28 helps reduce industrial cutting injuries, supports PPE certification across global markets, and ensures that protective equipment delivers reliable safety performance in real-world applications.
1. ISO 5402-1: Specifies the flexometer method for testing leather flex resistance under repeated bending.
2. ISO 17694: Defines test methods for footwear upper and lining flex resistance, simulating real-world bending stress to assess long-term durability.
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The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
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