Surface Scratch Resistance Tester
Category：Scratch Tester
Introduction
The Surface Scratch Resistance Testing Machine is designed to evaluate the scratch resistance and mechanical durability of coated surfaces under controlled load conditions. It is primarily used to assess the resistance of printed circuit board coatings and enclosure surfaces to scratching, ensuring compliance with electrical safety and mechanical strength requirements defined in relevant standards. The equipment provides stable, repeatable scratch testing results for quality control, product development, and conformity assessment.
Application
Scratch resistance evaluation of printed circuit board (PCB) coatings
Durability testing of surface coatings on electrical and electronic enclosures
Mechanical strength verification of plastic or coated housings
Quality control testing for household and similar electrical appliances
Compliance testing for safety-related surface durability requirements
Typical test samples include:
PCB protective coatings
Plastic housings and covers
Electrical appliance enclosures
Coated metal or composite surfaces
Standards
GB 4943-2001 Information Technology Equipment – Safety – General Requirements (Clause 2.10.6.6: Mechanical strength / drop resistance / enclosure scratch resistance)
GB 4706.1-2005 Household and Similar Electrical Appliances – Safety – General Requirements (Clause 21.2: Mechanical strength / enclosure scratch resistance)
Parameters
| Item | Specification |
|---|---|
| Steel needle cone angle | 40° |
| Steel needle tip radius | 0.25 ± 0.02 mm |
| Applied tip load | 10 N ± 0.5 N (axial force) |
| Scratch movement speed | 0 – 20 mm/s |
| Scratch travel range (X-axis) | 0 – 200 mm, adjustable |
| Scratch spacing range (Y-axis) | 0 – 200 mm, adjustable |
| Height adjustment range (Z-axis) | 0 – 90 mm, adjustable |
| Scratch angle of steel needle | 80° – 85° |
| Sample adjustment | 90° rotatable |
| Power supply | AC 220 V, 50 Hz |
Features
Rigid aluminum alloy frame combined with stainless steel panels for high structural stability
Thickened aluminum test platform to ensure accurate sample positioning
PLC control system for reliable and repeatable operation
Stepper motor drive enabling precise movement along X, Y, and Z axes
Automatic multi-axis control of the scratch needle for consistent testing paths
Text display interface for clear parameter setting and real-time status indication
Accessories
(1) Steel scratch needle
(2) Sample fixing fixtures
(3) Power cable
(4) Operating manual
FAQ
1. What is the core advantage of this product?
The main advantage lies in its precise load control, stable multi-axis motion, and full compliance with recognized scratch resistance testing requirements.
2. Are the test results reliable?
Yes. PLC control, stepper motor drive, and rigid mechanical construction ensure consistent, repeatable, and accurate test results.
3. Which international or industry standards does it comply with?
The machine is designed in accordance with GB 4943-2001 and GB 4706.1-2005 requirements for surface scratch resistance and mechanical strength.
4. Why is this product important?
Surface scratch resistance directly affects electrical safety, product durability, and user protection. This equipment helps verify compliance before products enter the market.
5. Which fields is this product suitable for?
It is suitable for electronics manufacturing, household appliance production, quality inspection laboratories, and safety compliance testing institutions.
