observation doors by Qingdao Hexin Machinery Co.,Ltd.
After years of development in the production of heating furnace accessories (heat-resistant steel castings),
it has provided complete sets of heating furnaces and waste heat recovery systems, as well as centrifugal casting alloy furnace tubes, radiant tubes, steam reformer tubes, steam reformer cold headers,
steam reformer inlet pigtails in Incoloy800H,Wye fittings, reducers, plug headers,and sharp bends for many refining and chemical projects of PetroChina, Sinopec, CNOOC and Sinochem.
Rich performance and experience, quality and technical ability.
Especially the large-scale heat-resistant alloy steel castings with large size, high grade and complex structure have extremely obvious advantages in technology and experience.
Centrifugal cast tubes, cast tube sheets, convection intermediate tube supports, hooks, tube sheets brackets and hangers, various furnace doors/peep doors or observation doors,
air preheaters, flue baffles, butterfly valves, quick-opening dampers, compensators, flue duct systems, etc.
Series products such as heat-resistant steel castings and cast iron plate air preheaters have a leading domestic market share and have a fairly high reputation and reputation in the industry.
Our company uses silica sol precision casting process to produce hooks, tube sheets brackets and tube sheets hangers.
The heat-resistant alloy steel castings produced by HEXIN Machinery adopts resin sand casting technology and silica sol precision casting technology.