Surface Scratch Resistance Testing Machine

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

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

Test Procedures

Secure the test sample firmly on the testing platform.

Adjust the sample height and orientation to the required position.

Set scratch parameters such as load, speed, travel length, and spacing via the control interface.

Align the steel needle to the specified scratch angle.

Start the test and allow the machine to perform the programmed scratch movement automatically.

After completion, inspect and evaluate the scratch condition according to the applicable standard.

Maintenance Information

Clean the testing platform and steel needle regularly to prevent debris accumulation

Inspect the needle tip periodically and replace it if wear affects test accuracy

Check mechanical movement components to ensure smooth and stable operation

Keep the control system and electrical components dry and free from dust

Perform routine calibration as required by internal quality procedures

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.