Dry and Wet Retroreflectometer

The Dry and Wet Retroreflectometer, also known as the Dry and Wet Sand Abrasive Wear Testing Machine, is designed to evaluate the wear resistance of materials under simulated dry and wet sand abrasive environments. By replicating real working conditions, this equipment provides quantitative data on the durability and performance of various materials. It is widely applicable in material research and development, industrial production, and product quality control.

Application

This machine is suitable for a broad range of applications, including:

(1) Material Research and Development: Evaluate wear resistance of new materials, wear-resistant coatings, and industrial components to guide material design and optimization.

(2) Industrial Production: Test parts such as rubber components, protective coatings, and metal surfaces to ensure product durability and reliability.

(3) Quality Control: Assess the wear resistance of finished products, identify substandard items, and guarantee consistent product performance before market release.

(4) Extended Applications: Can be used for testing abrasion resistance of plastics, composite materials, polymer coatings, and safety textiles.

Specific products tested include: rubber wheels, industrial gears, protective helmets, reflective safety materials, plastic parts, and coated metals.

Standards

The machine complies with multiple international and national standards, including:

(1) EN ISO 20471:2013 – High-visibility clothing standards (reflective testing)

(2) ANSI/ISEA 107-2015 – American National Standard for High-Visibility Safety Apparel

(3) GB 20653-2006 – Chinese high-visibility safety clothing

(4) GB/T 18833 – Chinese abrasion-resistant material testing standard

(5) ASTM G65 – Standard test method for abrasive wear by dry sand/rubber wheel

(6) ASTM G105 – Standard test method for rubber wheel abrasion in wet sand conditions

(7) JB/T 7705 – China Machinery Industry Standard for loose abrasive particle wear testing

(8) JB/T 9396 – China Machinery Industry Standard for sample fixture design and test requirements

Features

(1) Simulates dry and wet abrasive environments for realistic wear testing.

(2) Adjustable optical detection system with precise angular settings.

(3) Standard light source (Light A, color temperature 2856K) with high-precision illuminometer (0.01 lux – 200 klux).

(4) Accurate sample positioning with adjustable spindle angles.

(5) Integrated water spray system with stable conical water column for wet abrasion tests.

(6) Time-controlled operation with high accuracy (0.01 min).

(7) Wide applicability across materials including metals, plastics, rubber, composites, and reflective textiles.

(8) Supports data consistency and reproducibility for R&D, QC, and production environments.

Parameters

Parameter	Specification
Light source	Standard Light A, 2856K
Illuminometer	0.01 lux – 200 klux
Optical detector angular aperture	≤12′
Observation angle (α)	12′ – 2°, adjustable, accuracy 6′
Angle of incidence (β)	0° – 40°, adjustable, accuracy 1°
Sample holder	Accurate positioning between first spindle (β1) and second spindle (β2)
Distance from detector to sample	15 m (requires darkroom), laser rangefinder configured
Nozzle diameter	1.19 mm (conical and steady water column)
Nozzle distance to sample	1000 mm
Sample size	150 × 150 mm or 50 × 50 mm
Spray water speed	284 mm/h
Timer	0 – 99.99 min, accuracy 0.01 min

Accessories

(1) Main testing unit – 1 set

(2) Sample holder spindles – 2 pcs

(3) Optical detector – 1 set

(4) Laser rangefinder – 1 set

(5) Water spray system – 1 set

(6) User manual in English – 1 set

(7) Certificate of Quality – 1 set

Test Procedures

(1) Mount the material sample securely in the sample holder.

(2) Adjust the optical detector, spindle angles, and distance settings according to the test requirements.

(3) For wet tests, ensure the water nozzle is properly aligned and the spray rate is set to 284 mm/h.

(4) Select the testing duration and start the cycle.

(5) Observe and record changes in reflectivity and wear, either manually or through integrated sensors.

(6) Analyze the results to determine compliance with the selected standard.

Maintenance Information

(1) Keep the optical system and illuminometer clean to maintain accuracy.

(2) Ensure the water spray nozzle and pipes are free of blockages.

(3) Regularly check spindle and fixture calibration.

(4) Maintain a controlled testing environment (darkroom for reflectivity tests).

(5) Perform routine checks on all electrical and mechanical components to ensure consistent

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