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.
Safety helmet reflective vest photos of workers on site
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
7/11/2020, · After mounting ,helmet, on head form, a plump bob (500g, conical head, with included angle of 36 0) is dropped from 3m on to the top of the crown. The static measurement of the depth of a penetration or dent including the thickness of the ,material, of the ,shell, should not exceed 10 mm. Method of Testing Flammability Resistance
6/11/2020, · Some motorcycle ,helmets, use one layer of polystyrene foam, a supertype of ,helmet, use more layers of polystyrene foam to build safer ,helmet, to use it especially as the ,helmet, is being used. We need to remember that the polystyrene foam needs to be replaced in different places for the ,helmet, as it would not be much effective to make sure that it would save you at the time of using it.
These requirements include the construction, ,materials, used ,mechanical strength and finish of both ,helmet shell, and harness. All UniSafe ,helmet, shells are made from premium impact resistant ABS plastic or polycarbonate. In compliance with the standards objectives, specifying ,safety helmets, is dependent on hazards involved. AS/NZS 1801:1997 ...
Safety Helmet, Types: The CSA Standard (Z94.1) tests for Type 1 and Type 2 ,safety helmets, include dielectric strength, impact attenuation, penetration resistance, passive retention, ,shell, flammability, and liner ignition resistance (typically only Type 2 for lateral impact).
There are three ,main, parts to racing ,helmets,: Outer ,shell,. BeadALL liner. Inner liner, padding and hardware. Once a ,shell, design has been approved, a custom-made nickel model is created for that particular ,helmet,. Construction of the outer ,shell, begins with a thin layer of gelcoat.
The Outer ,Shell,. Each component of the ,helmet, is equally important, but it’s the outer ,shell, that gets the most attention because it’s easily seen. The outer ,shell,’s ,material, must be made of something that can prevent penetration from an object such as a sharp rock or a horse’s hoof.
The ,helmet,’s ,shell, is the rigid outer section of the ,helmet,, and is usually made from polyethylene, ABS (Acrylonitrile Butadiene Styrene – a thermoplastic) or fibreglass hardened with polyester resins The basic function of the ,shell, is to provide protection by reducing the force of a falling object striking or impacting on the users head.
The end result is a ,helmet shell, that has lighter weight and better elasticity under impact than a standard thermoplastic resin ,helmet,. Plastic - Based ,Helmets,. There are two basic kinds of plastic ,materials, used in ,helmet, construction: thermoplastics, and thermoset resins. ,Materials, in the "thermoplastics" category are plastic compounds made ...
All ,helmets, are made from a number of components: an outer ,shell,, an inner liner (for good fit and comfort), fitting straps, and perhaps a decorative covering. ,Helmet, shells are made by blow moulding, vacuum moulding or injection moulding. In many cases the relatively thin section of the outer ,shell, lends itself to sheet process technologies.