ASTM / ISO compliant scratch resistance tester
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Standards
The instrument complies with key international and national safety and mechanical standards:
GB 4943.1‑2011 – Information technology equipment – Safety, Part 1 (Clause 2.10.6.6: mechanical strength, drop, impact)
GB 4706.1‑2014 – Household and similar electrical appliances – Safety, Part 1 (Clause 21.2: mechanical strength, scratch resistance of enclosures)
IEC 60950‑1 – Information technology equipment – Safety, Part 1 (Clause 2.10.6.6: mechanical strength, drop, impact)
IEC 60335‑1 – Household and similar electrical appliances – Safety, Part 1 (Clause 21.2: mechanical strength, scratch resistance of enclosures)
Parameters
| Item | Details |
|---|---|
| Input Voltage | AC 220V / 50Hz |
| Control System | PLC + Touch Screen |
| Drive Type | Stepper motor drive |
| Scratch Speed | 0 – 25 mm/s, adjustable |
| Number of Tests | 0 – 9999. programmable |
| Scratch Spacing (General) | Adjustable |
| Rotating Table | 360° rotation for longitudinal and transverse tests |
| Scratch Pressure | 10 N ±0.5 N |
| Scratch Needle | Hardened steel, conical tip, 40° apex angle, rounded radius R0.25 ±0.02 mm, replaceable |
| Scratch Angle | Needle movement plane perpendicular to sample surface; forward scratching angle 80°–85°, adjustable |
| Scratch Length | Max 200 mm, adjustable |
| Translation Distance | Max 200 mm, adjustable |
| Scratch Spacing (Specific Range) | 1 – 19 mm, adjustable |
| Scratch Speed (Specific) | 20 mm/s ±5 mm/s, adjustable |
Features
Hardened Steel Needle: Conical tip with polished rounded radius ensures consistent, precise scratches.
Controlled Vertical Load: 10 N ±0.5 N ensures reproducible results; adjustable for different testing requirements.
High Precision Movement: Stepper motor drive allows smooth, accurate scratching across the sample surface.
PLC + Touchscreen Control: Provides intuitive operation, real-time monitoring, and programmable test cycles.
Adjustable Parameters: Scratch spacing, length, angle, and speed can be customized for various applications.
360° Rotating Worktable: Enables longitudinal and transverse scratch testing easily.
Reliable and Repeatable: Designed to ensure accurate evaluation of scratch resistance for safety-critical components.
Accessories
Hardened steel scratch needles (standard R0.25 mm, replaceable)
Additional force weights (optional for higher load testing)
Rotating worktable
Calibration and maintenance tools
PLC + touchscreen interface
Test Procedures
Sample Preparation:
Select representative components, such as solid insulation parts or PCBs.
Secure the sample firmly on the rotating worktable.
Setup:
Install the hardened steel scratch needle in the holder.
Set the vertical load to 10 N ±0.5 N (adjustable as required).
Adjust scratch speed, spacing, length, and angle using the touchscreen interface.
Testing Procedure:
Move the scratch needle perpendicular to the sample surface at the specified speed (20 mm/s ±5 mm/s).
Ensure scratches are spaced at least 5 mm apart and at least 5 mm from sample edges.
Use the rotating table to perform longitudinal and transverse scratches if needed.
Record test parameters and results via the PLC system.
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