High-intensity lifting chain, t80 chain, c-level chain of high-strength chain, mining chain, G80 lifting chain, tub chain Our company specializes in the production of a variety of lifting chain, lifting chain, chain rigging and mining chain All products using high-quality steel, widely used in lifting industry, the main specifications are φ6, φ8, φ 10, φ12, φ14, φ16, φ18, φ20, φ22, φ26, φ30, φ42. According to customer needs special processing production, customers are welcome to consult the discussion. High-strength chain, mining chain, G80 lifting chain, tub chain, green, stainless steel chain, chain fence, slag chain, enhance chain, marine chain, chain pier, fishing chain, boat cover chain, hatch chain, hatch chain dedicated connection ring buoy anchor, stud, no chains and other gear; chain length precision measuring method: measuring chain cleaned before A. B. will be measured on a chain around both sprockets, chains tested up and down both sides of the chain should be supported C. before the measurement should be applied ㄧ thirds of the minimum ultimate tensile load state remain under 1min D. measured by applying a predetermined measurement load on the chain, so that the upper and lower sides of the chain tensioner. Chain in sprocket teeth together should ensure that normal E. measuring center distance measuring two sprocket chain elongation 1. To remove the entire chain of clearance, to measure 2. Measure under some degree of pull on the chain tension is applied, in order to try to reduce the error, the measurement section 6-10 (link) where the inner side and outer side L2 L1 size 3. Measure the number of sections between the rollers, in order to judge the size L = (L1 + L2) / 2 4. determined The extended length of the chain, the value chain in the preceding paragraph and elongated in contrast to the use of threshold to determine the size of the chain elongation = - reference length / reference length * 100% * reference length = chain pitch lifting section number 80 chain is essential when lifting heavy lifting gear, from Germany advanced production line equipment, using high-quality alloy steel (manganese, etc.) materials, strict quality control throughout, lifting chain to reach 80 full international standards . Stainless steel chain, chain fence, slag chain, lifting chain, marine chain, chain pier, fishing chain