Hairpin tube welding onsite by Qingdao Hexin Machinery Co.,Ltd.

 Hairpin tube welding onsite by Qingdao Hexin Machinery Co.,Ltd.

The upper pigtail pipe is the intake branch pipe. In addition to distributing the feed, its main function is to absorb the expansion of the conversion pipe, the upper gas collector and the oil transfer line. Therefore, the material is required to be well shaped, and austenitic stainless steel 304/321 is mainly used. and other materials. The pipe diameters are mainly φ25, φ32 and other specifications.

The lower pigtail pipe is mainly used for the expansion of the lower gas collecting pipe of the mobile phone, and the material used is mainly Alloy 800H.

HEXIN Machinery produces various OEM wear and corrosion resistant components for the cement, lime, coal, shot blast machines,and iron Ore industries.
The castings HEXIN made generally are made from special irons and manganese steels, which are critically used in the sectiors of cement manufacturing,coal mining (surface and underground), copper smelting,crushers direct reduction of iron (DRI)
Iron ore manufacturing,Lime manufacturing. All the castings manufactured at HEXIN go through strict quality checks at all stages before being supplied to customers.
Typical Mining & Mineral castings:
Ø Cooler grate plates
Ø Drag chain links
Ø Kiln outlets sector
Ø Immersion tubes for Pre heater
Ø Dipping tube assemblies
Ø Thimbles
Ø Air cannons
Ø Grate plates
Ø Drag chains
Ø Pelletizing grates
Ø Feed chutes
Ø Rotary cooler castings
Ø Burner tips
Ø Liners
Ø Brackets,
Ø Cooler grates
Ø Grate bars
Ø Iron ore feeder rolls
Ø Kiln nose rings
Ø Pallet cars
Ø Precipitator thimbles
Ø Traveling grate components


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