Chain as a common driving force was the means by hyperbolic arc of "chain" design, reduce friction, for use in large power and run slower where there is too obvious superiority than belt drive, such as a tank , air compressors, etc., but the drive speed is not too fast, because the chain is not as good as flexible belt conveyor. ◆ Stainless steel chain: the parts and materials for the stainless steel chain, lifting chain, this chain for the food industry and the sensitive chemical, pharmaceutical and other erosion occasions, but also for high temperature applications. ◆ nickel chain, galvanized chain, chrome chain: all carbon material can be surface treated chain, lifting chain rigging, parts of the surface after nickel, zinc or chrome plated, may be suitable for outdoor water erosion and other occasions use, but can not prevent the concentration of the chemical liquid corrosion. ◆ self-lubricating chain: Some parts are made of a sintered metal impregnated with lubricant, such chains with wear, excellent corrosion resistance, no maintenance (maintenance) and long service life. Widely used by higher force, wear-resistant requirements, g80 lifting chain, and not always the case for maintenance, such as the food industry automated production lines, high-end racing bikes, low maintenance and high precision mechanical transmission. ◆ O-ring chain: roller between the inner and outer link plates fitted with roller chain with O-ring seal to prevent dust from entering and grease out of the hinges. Rigorous pre-lubricated chain. Because the chain with superior and reliable lubrication of parts, motorcycles, etc. can be used to open the drive. ◆ rubber chain: This chain is based on A, plus U-shaped attachment plate B series chain outer link, the board attached rubber glue (such as natural rubber NR, silicone rubber, SI, etc.) can increase the wear resistance, reduced noise, high intensity lifting chain, increase shock tolerance. For delivery. ◆ tines chain: This chain is widely used in the timber industry, such as feed and output timber cutting, transportation and other transfer station. Lifting chain lifting chain of visual inspection: 1. Inside / outside links deformation, cracks and corrosion. 2. The pin is deformed or rotate roller rust 3. whether cracks, damage, excessive wear 4.4 Vibration  chain lubrication fittings are running loose deformation 5. There is no different or unusual sound is good chain length precision ㄧ minimum limit chain before measuring method A. B. cleaned measuring chain around the chain to be tested on both the upper and lower sides of the tested chain sprocket  should be supported C. before the measurement should be applied tensile load-thirds of the state By staying at 1min D. measuring  applying a predetermined load on the chain  the upper and lower sides of the measurement chain tensioner The chain sprocket should ensure the normal ratcheting E. measuring two sprocket center distance 80 lifting chain lifting chain _ Manufacturers (Online) _ lifting chain sling from Hebei chen Manufacturing Limited. Hebei chen sling Manufacturing Co., Ltd. (www.qzhon.com) Hebei Baoding, forestry machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chen led force in a sling with the staff warmly welcome all inquiries negotiations to create chen sling a better future.