Dynamic Strap Retention Machine standard It's according to ECE R22.05 ,EN107 EN1078 etc Standard
Dynamic Strap Retention Machine specifications 1.Chin straps shall be made of suitable material not less than 12.7mm in width 2.The residual elongation of the strap shall not exceed 25mm 3.The stirrup shal be attached to a pre-load assembly such that the total mass of the stirrup and pre-load assembly shall be 1.5kg±kg 4.The drop mass (impactor )shall also slid freely upon the pre-load assembly and shall have a mass of 10.00kg±0.05kg
Company Introduction Dongguan HongTu Instrument Co.,Ltd specilizes in developing and producing helmet testing machines ,we have firm connections and full cooperation from China's National Thrid-party Quality Inspection and Notarization Center on producing and developing high-precision testing machines according to ECE , EN ,DOT ,SNELL ,GB, AS, JIS and other standard
We are the largest helmet testing machine production factory In China , we treasure the value of good quality , reasonable price and efficient service with customer satisfafction. we expert ourselves in providing our customers the best suitable tesitng designs and high quality testing machines to make you the utmost profit
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