Schopper Abrasion Tester
For fabrics, abrasion resistance is a key indicator of their performance and durability. During the test, friction is applied tangentially to a rotating specimen using a friction element to measure its abrasion resistance.
The instrument is compact and robust, consisting of a clamping device with a blunt-angled conical chuck, a loading platform for the friction element, and a control and drive unit. All components are rationally designed and easy to operate. To facilitate sample preparation and gentle clamping, the instrument includes an adjustable ring wrench for measuring expansion height. During the test, the specimen is placed on the flat surface of the friction element and a rotational motion is applied. The friction area of the specimen is approximately 50 cm.
Instructions
1. Use the instrument's accessories to mount the temperature- and humidity-conditioned specimen on the specimen fixture to form a rotating test head. Use a dome height tester to adjust the test head's protrusion height according to relevant standards or other requirements, typically 5-8mm.
2. Mount the test head, loaded with the specimen, on the test head mounting plate on the instrument workbench. Install and secure the test head by aligning the locating pins on the mounting plate with the locating holes below the test head.
3. Use the friction clamp located on the instrument's pressure plate to attach the abrasive paper to the lower surface of the pressure plate. Tighten the clamp to ensure the abrasive paper is securely clamped and installed flatly.
4. Manually pull outward on the pressure plate lift latch located on the right side of the pressure plate to lower the pressure plate, bringing the abrasive paper into contact with the specimen surface on the test head.
5. Install a weight of the appropriate weight on the weight shaft above the pressure plate (the instrument is equipped with one standard weight each of 1500. 1000. 500. 250. 100. and 50g). Apply a specific frictional pressure to the specimen. Select the desired pressure based on the specimen weight per unit area.
Maintenance
1. The instrument must be placed on a stable surface before use.
2. Do not move the instrument during use.
3. Select the appropriate power supply voltage and avoid excessively high voltages to avoid damaging components.
4. If the instrument malfunctions, please contact customer service for prompt attention.
5. The machine must be operated in a well-ventilated environment.
6. Due to the heavy loads on the keypad components, lubricate them promptly.
7. Clean the instrument after each test to ensure it remains clean.
8. Wipe the control box with a dry cloth; do not use a damp cloth.
