Stone Chip Tester Erichsen
The MULTI GRIT / Stone Chip TESTER 508 VDA is a stone-hammer-blow / Stone Chip resistance tester that was originally developed in collaboration with the German Association of the Automotive Industry (VDA), but which also meets the requirements of national and international standards. The MULTI GRIT TESTER 508 VDA is for evaluating the performance of single- and multi-layer paints and similar coatings when subject to the stresses caused by low-mass, high-speed impacting objects (such as those encountered on road and rail vehicles, and traffic equipment). The new MULTI GRIT TESTER 508 SAE is a stone-hammer-blow testing instrument, which (in contrast to the VDA version) is equipped with an adjustable impact angle. Stone Chip resistance test finds its wide application in automotive industry for determination of the resistance of the coatings when subject to chipping damaged by stones.
- Test type: stone hammer blow
- Other characteristics: pneumatic
- Standard : VDA/SAE
Frequently Asked Questions
The stone chip test is a test that helps in understanding how resistant the coatings on external components of cars are to chipping when objects such as gravel and stones hit them at high speeds.
Stone Chip Resistance according to the VDA/ISO based standards can be measured by image processing software and hardware provided by us Check GRITSCAN (For WebIndia, hyperlink to gritscan page on our website).
Stone Chip Resistance tests are performed on coated metal, plastic parts such as the external side view mirrors, wheels etc. This test is largely performed by automotive manufacturers as well as their suppliers.
We provide machines according to both the two major standards, ISO/VDA and ASTM/SAE. There is also a newly released model that can perform both types of test following a convenient change over.
|Model 508 VDA||MODEL 508 SAE|
|Principle of test: A defined number of impact bodies of specified shape, material and surface quality is made to impinge for a given period of time and with a specified energy at a determined angle (54° in accordance with DIN/ISO) of impact onto the specimen.||Principle of test: A defined number of impact bodies of specified properties is made to impinge for a given period of time and with a defined energy at a determinate angle of impact onto the specimen.|
|Standard : DIN EN ISO 20567-1 FORD FLTM BI 157-06 RENAULT D24 1702 PSA D24 1312 DAIMLER DBL 5416||Standard : SAE J 400 ASTM D 3170|
|Compressed air connection: At least 6 bar / max. 10 bar, requiring a connecting hose with ID 13 mm||Compressed air connection: At least 8 bar / max. 10 bar, requiring a connecting hose with ID 19 mm|
|Filling pressure control: approx. 5 bar, factory set||Filling pressure control: 7.8 bar overpressure, set by factory|