Falling Sand Abrasion Tester
Category：Abrasion Tester
Introduction
The falling sand abrasion tester is used to test the abrasion resistance of coatings under standard conditions. This method tests the abrasion resistance of a coating by dropping abrasive material through a tube from a specified height onto a coated test panel until the substrate of the panel is exposed and visible.
Application
Helmet abrasion resistance sand test machine is mainly used to test motorcycle helmets, sports helmets, electric vehicle helmets, fire helmets, rescue helmets, military and police helmets, pilot helmets and other helmets eye protection performance. Widely used in a variety of helmets related to the production of research and development, scientific research, quality supervision and testing, colleges and universities laboratories and other units.
Standards
(1)GB811-2022: Helmets for motorcycle and electric bicycle users
(2)GB24429: Sports helmets — Safety requirements and test methods for helmets used in bicycling, skateboarding, roller skating
(3)GJB1564A: General specifications for flight protective helmets
(4)GA293: Ballistic helmets and face shields for police
(5)GA294: Police anti-riot helmets
(6)GA295: Motorcycle helmets for police
(7)GA296: Service helmets for police
(8)ASTM D968: Standard Test Methods for Abrasion Resistance of Organic Coatings by Falling Abrasive
Parameters
| Item | Detail |
|---|---|
| Sand Drop Tube | Height: 1650 ± 10mm; Material: PVC, acrylic, or stainless steel |
| Specimen Turntable | Tilt angle: adjustable from 0 – 90°; Standard angle: 45 ± 3° |
| Turntable Speed | Adjustable from 0 – 300r/min; Standard speed: 250 ± 10r/min |
| Falling Sand Specifications | Particle size: 0.5 – 0.7mm; Material: natural quartz sand; Weight: 3 ± 0.1kg (reuse no more than 10 times) |
| Fallen Sand Form | Gravity free fall |
Features
(1)The speed regulator can carry out the adjustment of the sample speed, and real-time display.
(2)Sand fall gravity tube has three sections of PVC, acrylic or stainless steel tube.
(3)Conical sand drop storage port, easy to store the sand drop.
(4)The conical design structure at the bottom of the equipment and the low falling disk are convenient to collect the falling sand.
Accessoriess
(1)Funnel device
(2)Sand guide tube
(3)Sample holder
(4)Rotating workbench, etc.
FAQ
1. What is a Falling Sand Abrasion Tester?
This device evaluates the wear resistance of materials, coatings, or surfaces by simulating abrasive erosion caused by falling sand or particles. It is widely used in materials research and quality control.
2. How does the falling sand abrasion test work?
Sand or other abrasive particles are allowed to fall from a controlled height onto the material surface. The sample may rotate or remain stationary, and material loss or surface damage is measured to determine wear resistance.
3. What types of materials can be tested?
It can test metals, plastics, composites, coatings, ceramics, rubber, and other materials used in construction, automotive, industrial, or protective applications.
4. What parameters are measured during testing?
The tester measures weight loss, wear depth, wear rate, surface roughness, and damage patterns. Some models offer automated sand feed, cycle control, and data logging.
5. Why is falling sand abrasion testing important?
Testing ensures materials can withstand abrasive environments, such as wind-blown sand or particulate flow, helping manufacturers improve durability, select suitable materials, and predict service life.
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