Long Cylindrical Shell with Process Column Shell and Machined Nozzle Cutouts

Shell roundness above 1 mm diametral deviation prevents standard packing sections from seating correctly and creates channelling paths along the shell wall. Hangzhou Pengbo Precision Machinery (Hangzhou, Zhejiang, established 2009, ISO 9001 certified) fabricates this long cylindrical stainless process column shell with machined nozzle cutouts at their upwards of 20,000 m² Hangzhou facility using 5-axis milling, boring & milling, and milling & turning, with nozzle position, shell roundness, and flange face flatness compared to your print at initial sample check and recorded on the dimensional report before goods-out. Pengbo serves boiler, pressure vessel, pump & valve, semiconductor, and wind energy process column shell applications. Clients include robotics, shipbuilding, and drones buyers. Share your specs — nozzle position tolerance, shell roundness, flange face flatness, and stainless grade. For costed feedback from our hangzhou engineers.