Helmet Projection and Surface Friction Tester
Category：Scratch Tester
Introduction
The helmet projection and surface friction tester is a device used to test the frictional force between the helmet surface and other objects. Its main purpose is to ensure that the helmet has sufficient friction during use to prevent slipping or detachment, thereby improving safety.
Application
Produced according to helmet related standards, it is mainly used to test the shear force and friction performance of the surface raised structure of motorcycle helmets and electric vehicle helmets. Widely used in various helmets related production, scientific research, quality supervision and testing units.
Standards
(1)GB811: Helmets for motorcycle and electric bicycle users
(2)ECE R22.05: ECE R22.05 Motorcycle Helmet Standard
Parameters
| Technical Parameter | Description |
|---|---|
| Friction sandpaper | Length: 300mm – 303mm; Grade 80 aluminum oxide coated sandpaper |
| Steel cutter | Height: 6mm; Width: 25mm; The top edge is chamfered with a radius of 1mm |
| Impact weight | 15kg – 15.5kg |
| Weight fall height | 0 – 1000mm |
| Pre-loaded weight | 400N – 410N |
| Sensor range | 0 – 120mm |
| Instrument power supply | 220V 50Hz |
Features
(1) PLC touch screen control.
(2) Horizontally oriented carrier with exchangeable installation of sandpaper and cutter.
(3)Head type can be rotated 360.
(4)Equipped with professional speed measuring tooling.
Accessoriess
(1)Abrasive sandpaper
(2)Steel cutting blade
(3)Weights
(4)Weight dropping device
(5)Preloading device
(6)Sensor
(7)Head form
(8)Specimen holder
FAQ
1. What is a Helmet Projection and Surface Friction Tester?
This device evaluates the surface friction and impact behavior of helmets to ensure they can resist sliding and provide effective protection during collisions or impacts.
2. How does the helmet projection and friction test work?
The helmet is placed on a test rig and subjected to controlled impact or sliding simulations. Sensors measure surface friction, sliding distance, and impact response to assess helmet performance.
3. What types of helmets can be tested?
It can test industrial safety helmets, construction helmets, bicycle helmets, motorcycle helmets, and other protective headgear designed to resist sliding and impact forces.
4. What parameters are measured during testing?
The tester measures surface friction coefficient, sliding distance, impact resistance, and energy absorption. Data is used to evaluate helmet safety and compliance with standards.
5. Why is helmet projection and surface friction testing important?
Testing ensures helmets remain stable during impacts or falls, reducing rotational or sliding injuries, and ensures compliance with safety standards such as EN 397. ANSI Z89.1. or ISO.
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