Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.
riddell mini helmet case
We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.
Professional team work and production line which can make nice quality in short time.
The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
Address：No. 3888, Hutai Road, Baoshan District, Shanghai, China
After the release of the ,Helmet, Laboratory ,Testing, Performance Results in April 2020, ... coordinated extensive laboratory research to evaluate which ,helmets, best reduce head ,impact, severity. The results of the laboratory tests are displayed on the poster below and shared with NFL players, ...
Impact testing, is not as stringent as that of either the Snell M2015 or DOT standards, in that ECE 22.05 only requires singe impacts on any particular location on the ,helmet, (DOT and Snell demand two impacts per location) and it tests on two anvils—flat and curbstone—at lower velocities than the Snell standard.
Alter the part of the ,helmet, that hits the ground first (the top of the ,helmet, vs the side of the ,helmet,) to see what type of ,impact, causes the most damage in a crash. ,Test, new ,helmets, versus old ,helmets, to see if the age of a ,helmet, makes a difference in how well it protects your head.
The DRI ,Impact Test, Laboratory is an ISO 17025 accredited ,test, lab and utilizes the most sophisticated ,impact test, systems available for ,helmet, R&D, quality control, or accident reconstruction studies. We have the capacity to perform ,testing, to US motorcycle and bicycle ,helmet, standards as well as many international ,helmet, standards.
29/1/2019, · ,Impact, absorption ,testing, is done in similar fashion to ECE and DOT, using a free-fall drop ,test, from a height necessary to attain the specified ,impact, velocity with a head form in the ,helmet, to ...
Impact Testing, – he ,impact test, uses controlled impacts to simulate different ,impact, surfaces. The object is to measure gravitational (G) force or acceleration. If the peak acceleration in any ,test, exceeds a value, the ,helmet, is rejected.
Helmet impact test, procedure The ,test, procedure was performed in accordance with the Federal Motor Vehicles Safety Standard (FMVSS) 218 (U.S. Department of Transportation), for motorcycle ,helmets, modified for the specific needs of the ,test, series for ,impact, site, ,test, …
Impact Test, Results The tests at the left front and right rear were done from a drop height of two meters resulting in a drop velocity of 6.3 m/sec (14mph) onto a flat asphalt pavement surface. This drop height was chosen because Hurt et al (1981) found that it represented the 90th percentile ,impact, to ,helmets, involved in street crashes.
Impact testing, is the process of ,testing, the amount of force our cricket ,helmets, deflect and then absorb under ,test, conditions. Over the years we have built up a great deal of knowledge and understanding ensuring that every protection product that leaves us gives the player the best protection possible.