• CN-flat_head
  • Dished and Flanged Heads7
  • Stainless steel flat dish end, manufacturing flat tubeplate end/bottom end cap

Large diameter thickness wall Boiler flat bottom heads with punch holes

Supply Ability:
2000 Piece/Pieces per Month
Packaging Details
1, Shipment by bulk OD more then 5000mm
2, GP Containers for OD within 2200mm
3, FR Container OD within 4000mm
4, Iron Cage and wooden pallets
or according to your requirement
Qingdao, Tianjin, Shanghai, any port in China


Large diameter thickness wall Boiler flat bottom heads with punch holes

Special tolerances, trimming or machining can be supplied as required.
da = Outer diameter

di = Inner diameter

h1 = Stepped-edge height

h2 = Dish height

h3 = Total height inner

r1 = Dish radius

s = Wall thickness


Produce Capabilities

1,Cold Formed

2,Hot Formed Welded (U stamp partial data report)

Heads can be fabricated in configurations such as,


• Standard F&D

• ASME 2:1 Elliptical

• Flat heads

• High Crown

• Shallow F&D

• Dished only

• Flanged Only

• Toriconical / Cones

• Hemispherical

• Reverse F&D

• Custom Dimensions

Welding Processes

Stick-Electrode Semi-Automatic Submerged Arc Gas Shielded


Surfacce Treatment

Carbon Steel—Sand Blasting Stainless Steel—-Acid Pickling

Industry Standards

ASME Section VIII, Division 1 (U stamp)
DIN28011 28013


Manufacturing CONVENTIONAL TANK HEADS Com— Diameter from 89mm to 7000mm,thickness from 3 to 40mm
SEGMENTS HEADS —-Diameter from 3000—20000mm, thickness from 4 to 300mm


Judy Wu
Office Tel: 86-538-8997075
Office Fax: 86-538-8997333
Email: judy(at)precision-metal.net

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