Established in year 2009,Bossen specializes in various kinds of steel pipes and steel concerned building materials. With an experienced, dynamic and high efficient team, our products are well-received worldwide.
We have our own factory–Tianjin Youyong Steel Pipe Co.,Ltd,which is a specialized enterprise for manufacturing longitudinal ERW steel pipe and galvanized steel pipe. The factory invests RMB150,000,000 yuan in total, covers an area of 110,000 square meters and owns more than 500 employees at present, including more than 50 main managerial personnel and production technical personnel.
Our factory now has 8 longitudinal ERW steel pipe production lines and 5 galvanizing production lines and it is capable of producing 300,000 metric tons of longitudinal ERW steel pipe a year and 200,000 metric tons of galvanized steel pipe a year.
Our factory has advanced pipe manufacturing production line, perfect inspection equipment and strictly specified quality assurance system. The company has obtained Certificate of ISO9001:2000 International Quality System and BV Certificate, etc.
Two Square tubes are positioned in the CNC vise with a 1/4 inch thick parallel separating the parts. The Tormach is equipped with a shop built right angle head supporting a Kress high speed auxiliary spindle on the X axis. The cutting tool is a 1/4 inch diameter, 60 degree conical burr. The Kress spindle is running at setting number 4 (21,000 RPM). The Tool cuts a fine chamfer on the outer and inner surface of the tube end. Feed rate is 50 IPM on the cutting pass followed by 100 IPM finish pass. Although the part is aligned to the machine axes, the tool feeds three axes simultaneously at each side traverse of the part so as to utilize a continuously varying portion of the cutting edge. The G-Code program accepts parameters for tube size, tube wall thickness and the outside radius of the tube corners so as to accommodate various size product. The tube ends are deburred in about 30 seconds.