Scratch Resistance Tester (GB 4943.1)
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The Scratch Resistance Tester (GB 4943.1) is designed for evaluating the scratch resistance of solid insulation components or printed circuit boards in household appliances and similar products. Developed according to GB4943.1-2011 (clause 2.10.8.4), IEC60950-1 (clause 2.10.8.4), GB4706.1 (clause 21.2), and IEC60335-1 (clause 21.2), this tester ensures materials have sufficient strength to resist penetration by sharp tools. The instrument provides precise, repeatable scratch tests, making it ideal for product safety verification and quality control.
Application
Primary applications:
Scratch resistance testing of easily accessible solid insulation parts in household appliances
Evaluation of printed circuit boards for durability against sharp objects
Safety verification to ensure materials meet mechanical strength requirements
Typical tested products:
Household appliances (kitchen, cleaning, and personal devices)
IT equipment and peripherals
Electrical devices with exposed surfaces or touchable insulation components
Standards
(1) GB 4943.1 – Information Technology Equipment – Safety – Part 1: General Requirements (Clause 2.10.6.6)
(2) GB 4706.1 – Household and Similar Electrical Appliances – Safety – Part 1: General Requirements (Clause 21.2)
(3) IEC 60950-1 – Information Technology Equipment – Safety – Part 1: General Requirements (Clause 2.10.6.6)
(4) IEC 60335-1 – Household and Similar Electrical Appliances – Safety – Part 1: General Requirements (Clause 21.2)
Parameters
| Parameter | Specification |
|---|---|
| Input Voltage | AC 220V / 50Hz |
| Control System | PLC + Touchscreen |
| Drive Type | Stepper motor |
| Scratch Speed | 0–25 mm/s (adjustable) |
| Test Cycles | 0–9999 (presettable) |
| Scratch Spacing | Adjustable, 1–19 mm |
| Worktable | 360° rotatable |
| Scratch Load | 10 N ±0.5 N |
| Stylus | Hardened steel, conical tip, 40° cone angle, radius 0.25 mm ±0.02 mm (replaceable) |
| Scratch Angle | Vertical to sample surface, 80°–85° (adjustable) |
| Scratch Length | Max 200 mm (adjustable) |
| Translation Distance | Max 200 mm (adjustable) |
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