KM-5A Particle Abrasion Tester Technical Specification  

1. Instrument Overview  

- Advanced abrasion resistance testing equipment  

- Evaluates material wear characteristics under controlled conditions  

- Essential for quality control in material development and production  

2. Testing Principle  

- Rotating abrasive wheel contacts test specimen under specified load  

- Measures mass/volume loss after defined test cycles  

- Quantifies wear resistance through standardized calculations  

3. Key Features  

- Digital touchscreen control panel  

- Programmable test parameters (speed, load, duration)  

- High-precision weighing system (0.1mg resolution)  

- Multiple test modes (dry/wet, continuous/reciprocating)  

- Integrated dust extraction port  

4. Technical Parameters  

- Load range: 5-50N (±1%)  

- Rotational speed: 10-200 rpm (±2 rpm)  

- Abrasive wheel diameter: 150mm (±0.5mm)  

- Specimen dimensions: max 50×50×10mm  

- Power supply: 220V AC, 50Hz  

5. Standards Compliance  

- ASTM G65 (Dry Sand/Rubber Wheel Abrasion Test)  

- ISO 9352 (Plastics - Determination of Resistance to Wear)  

- DIN 53516 (Rubber Abrasion Testing)  

- GB/T 12444 (Metallic Materials - Wear Test Methods)  

6. Testing Procedure  

1) Sample Preparation  

- Cut specimen to required dimensions  

- Clean and dry surface  

- Pre-weigh using precision balance  

2) Test Setup  

- Install appropriate abrasive wheel  

- Mount specimen in holder  

- Set test parameters (load, speed, cycles)  

3) Test Execution  

- Start abrasion cycle  

- Monitor progress via digital display  

- Automatic stop at completion  

4) Post-Test Analysis  

- Clean and re-weigh specimen  

- Calculate wear volume/loss  

- Document surface morphology  

7. Data Interpretation  

- Wear rate calculation: Δm/(ρ·L·D)  

  (Δm=mass loss, ρ=density, L=load, D=distance)  

- Comparative wear resistance index  

- Surface roughness change analysis  

8. Applications  

- Metal alloy development  

- Protective coating evaluation  

- Polymer composite testing  

- Automotive component validation  

- Mining equipment materials  

9. Maintenance Requirements  

Daily:  

- Clean test chamber  

- Check abrasive wheel condition  

Weekly:  

- Verify load calibration  

- Lubricate moving parts  

Monthly:  

- Full system diagnostics  

- Sensor calibration  

10. Safety Features  

- Emergency stop button  

- Overload protection  

- Safety interlock cover  

- Automatic shutdown on fault detection  

11. Performance Metrics  

- Repeatability: ±2%  

- Measurement accuracy: ±0.5%  

- Test reproducibility: ±3%  

12. Customization Options  

- Specialized abrasive media  

- Environmental test chamber  

- Advanced optical analysis module  

- Automated sample changer