Precision punching needle roller series Our company specializes in film punching needle rollers, packaging film punching needle rollers, aluminum foil punching machines, copper foil punching machines, product quality and processing technology reliability, stability is at the domestic advanced level, and can be produced according to customer requirements A special specification of needle roller and needle ring products. Welcome customers to come and inquire.
Needle roller, also known as needle cylinder. A metal cylinder with steel needles planted on the surface. It is installed in the drafting zone for controlling and carding fibers. It is used on spun silk and wool spinning roving frame, carded wool spinning frame, spun spinning and shaft spinning frame. The main body of the needle roller is a copper cylinder with small holes drilled on the surface and steel needles are planted in the holes. Both ends of the cylinder are equipped with a flange, the surface of which is slightly higher than the needle tip to protect the needle tip from damage. The main parameters of the needle roller are: bottom diameter, outer diameter, needle width, needle height, needle density, needle angle and needle number. In order to adapt to the processing of different types of fibers, the small carding roller on the rotor spinning machine has the saw teeth replaced with needles, also called needle rollers.
Needle Roll, Cold Punching Needle Roll, Embossing Needle, Carding Machine Needle Roll, Film Punching Needle Roll, Aluminum Foil Punching Needle Roll, Non-woven Punching Needle Roll, Heated Punching Needle Roll, Heated Perforated Needle Roller Changzhou Puyisen Machinery Technology Co., Ltd. , https://www.pysmachine.com
According to Directive 2001/95/EC on general product safety, the European standardization body must establish European standards to ensure that products sold in the EU meet the general safety requirements of the Directive.
Recently, the European Committee for Standardization (CEN) announced the revision of the European Standard EN 14764:2005 on urban bicycles, EN 14766:2005 on mountain bikes, EN 14781:2005 on racing bicycles and EN 14872:2006 on bicycle racks. For children's bicycles not covered by the Toy Safety Directive, the European Standard EN 14765:2005+A1:2008 will also be revised.
Bicycles sold in the European Union must comply with the new general safety requirements and mainly address:
Whether the overall design of the bicycle can be matched with the user's ability to control and the condition of the physical condition. Acceptable levels of injury or damage for normal use Information on potential risks and highest load-bearing requirements Requirements for lighting fixtures and reflectors Bicycles must also meet certain physical characteristics Requirements such as stability, durability, front-rear braking system, sharp edges, etc.
Other requirements include the mechanical characteristics of the bicycle, such as the requirements for the folding system and fasteners, to ensure that the bicycle is safe and practical and to avoid injury to the user.
In addition, there are separate regulations for different types of bicycles. For example, children's bicycles must comply with the saddle height and the average weight limit, and the brake regulations are more stringent.
Bicycle racks must meet more stringent requirements in terms of user and child safety, load capacity, size and stability. The safety components of mountaineering and racing bikes must be specially designed to withstand greater impact.
EU revised bike European safety standards
On December 2, 2011, the European Union's "Official Gazette" published European Commission resolution 2011/786/EU, which covers European safety standards that bicycles, children's bicycles and bicycle racks must comply with.