The CNC forming mill adopts a slow-feeding strong grinding process, equipped with a high-pressure, large-flow cooling device, the coolant in the grinding area of ​​the workpiece and its impurities splash, the environmental conditions are bad, the general mechanical seal can not effectively protect, causing damage to the spindle of the machine tool . In this regard, the inventors Luo Guangjin, Lu Fang, Zhou Zheping, Su Xing and so on for the MKDL7140 products, in accordance with local conditions in the original sealing structure innovative design of a new technical structure - pneumatic seal. In an air cavity, using the flexibility of the existing sealing ring, the valve is designed to be opened and closed in one direction, and the compressed air is connected, and exhausted from the inside of the grinding head air chamber to the grinding wheel chuck, so that impurities and coolant cannot enter the main shaft, effectively The ground bearing is protected from the ground to improve the service life. This invention patent can be widely used in high-speed, high-efficiency and precision forming grinding machines. As the right holder, Hangzhou Machine Tool Group has exclusive rights, exclusive rights, licenses, etc., and technical patents and corporate intellectual property can effectively protect products. The foundation of independent brands.
Galvanized Roller Shutter Door
Using advanced hot-dip galvanized material , precision roll forming production process, polyurethane foam that free of hydrofluorocarbon inside door, light weight, high strength, appearance nice. The doors have advantages of tamper anti-theft , noise isolation thermal insulation and corrosion resistance;the doors are widely used in shops, garages, houses, supermarkets, warehouses and industrial plants,etc.
Depending on the characteristics of the buildings,we can choose interior, exterior and intermediate three different installation ways, doors stay in the upper part of door after rolling up , this could save garage space, and also could keep the garage clean and beautiful by prevent the mud, rain and snow ,etc going into the garage.
Galvanized Roller Shutter Door,Standard Galvanized Roller Shutter Door,Automatic Galvanized Roller Shutter Door,Steel Roller Shutter Safe Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffastdoor.com