Continuous Load Scratch Resistance Tester
The Continuous Load Scratch Resistance Tester is designed to evaluate surface scratch resistance and coating adhesion performance under continuously increasing load conditions. By applying controlled linear motion combined with progressive vertical loading, the instrument accurately identifies surface damage thresholds, making it suitable for assessing the durability and mechanical integrity of screens, films, wall coverings, and coated materials.
Application
Scratch resistance testing of mobile phone and tablet display screens
Scratch resistance evaluation of functional and decorative films
Scratch durability assessment of wallpapers and surface coverings
Adhesion strength testing of coatings under progressive load
Surface hardness and smoothness characterization
Typical test samples include:
Glass and coated display panels
Protective and decorative films
Wallpaper and laminated surfaces
Painted, varnished, or coated substrates
Standards
ISO DIS 12137-2 (Plastics — Determination of Scratch Properties)
JIS K 5600 (Testing Methods for Paints)
Parameters
| Parameter | Specification |
|---|---|
| Sliding speed | 600 mm/min (return speed: 1200 mm/min) |
| Drive motor | Reversible motor |
| Drive mechanism | Rack and pinion transmission |
| Sliding distance | 100 mm |
| Vertical load | Continuous load: 0–50 g, 0–100 g, 0–200 g |
| Fixed load: 200 g | |
| Safety system | Overload protection, high-frequency noise suppression circuit |
| Overall dimensions | Main unit: W535 mm × D225 mm × H340 mm |
Features
Multiple test functions integrated into a single system
Scratch resistance testing in accordance with ISO DIS 12137-2. with scratch size evaluated by microscopic observation
Pencil hardness–type testing based on JIS K 5600. using a 45° inclined pencil to compare surface hardness
Surface smoothness measurement by recording sliding resistance of a flat fixture to calculate static and dynamic friction
Optional friction and wear analysis software enables quantitative evaluation of scratch resistance based on measured resistance
Accurate determination of critical loads corresponding to surface indentation and cracking through resistance variation analysis
Accessories
(1) Conical scratch needle set with rounded tips (0.005–1.0 mm radius options)
(1) Continuous loading weight set
(1) Fixed load weight
(1) Flat sliding fixture
(1) Power cable
(1) Tool set
(1) Operating manual
Optional: friction and wear analysis software
Maintenance Information
Clean scratch needles and fixtures after each test
Regularly inspect the rack and pinion drive for smooth operation
Verify load weights and safety devices periodically
Keep the instrument free from dust and vibration
Store accessories properly to prevent mechanical damage
FAQ
1. What is the core advantage of this product?
Its continuous load mechanism allows precise identification of surface damage thresholds that fixed-load tests cannot reveal.
2. Are the test results reliable?
Yes. Stable mechanical transmission, overload protection, and direct resistance measurement ensure consistent and repeatable results.
3. Which international or industry standards does it comply with?
The tester supports ISO DIS 12137-2 and JIS K 5600 related scratch and surface performance evaluations.
4. Why is this product important?
It provides quantitative insight into scratch resistance and surface durability, supporting material selection and quality control.
5. Which fields is this product suitable for?
It is suitable for electronics manufacturing, film and coating development, decorative materials testing, and quality inspection laboratories.
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