Metal spinning and dished heads
Metal spinning and dished heads
Products in this category
Metal spinning and pressing of stainless and steel dished heads
Dished heads (tank ends) close the ends of tank shells, pressure vessels and cooking kettles, and are also used as caps and decorative domes. Inox TINTA makes dished heads in 201, 304, 316 stainless steel and carbon steel to the diameter, thickness and profile on your drawing.
Common head types
| Type | Characteristics | Typical use |
|---|---|---|
| Hemispherical | Best pressure resistance; height equals half the diameter | Pressure vessels, gas tanks, decoration |
| 2:1 ellipsoidal | Height about a quarter of the diameter; balanced strength and height | Food, chemical and mixing tanks |
| Torispherical | Large crown radius with a small knuckle; low height | Low-pressure tanks, lids |
| Conical | Funnel shape that drains completely | Hopper bottoms, silos |
| Flanged flat | Flat plate with a formed flange | Non-pressure tanks and containers |
Spinning, pressing and flanging
- Spinning: a round blank rotates while rollers form it over a mandrel; ideal for small and medium heads with a smooth finish and flexible quantities.
- Pressing: a hydraulic press and die form the head quickly and consistently for larger quantities.
- Flanging: forms the straight flange and knuckle so the head can be welded to the shell away from the curved, stressed area.
What to send when ordering
- Head type: hemispherical, 2:1 ellipsoidal, torispherical, conical or flanged flat.
- Diameter (state inside or outside diameter).
- Thickness and material (201, 304, 316, carbon steel…).
- Straight flange height if it will be welded to a shell.
- Finish (2B, polished, hairline) and quantity.
Heads are usually ordered together with industrial stainless steel tanks; see also stainless steel balls and dished heads. Round blanks are laser cut before spinning.
Frequently asked questions
What does a 2:1 ellipsoidal head mean?
Its profile is half an ellipse whose major-to-minor axis ratio is 2:1, so the head height is about a quarter of the diameter. It is the most common head for food and chemical tanks.
Do you make carbon steel heads that are painted or galvanised?
Yes. Carbon steel heads are formed the same way and can then be painted or galvanised.
What is the lead time?
It depends on size, whether a suitable tool exists and quantity; we confirm it when we receive the drawing.
Get a quote the same day: send your drawing (DXF, DWG, PDF or a dimensioned photo), stainless grade, thickness and quantity to tinta@tinta.vn or on Zalo/WhatsApp +84 987 636 779. Our engineers check the drawing and call you back to agree on the details.
Related services & categories
- Business staff 0974194339 Hoàng Gia Phú (Mr)
- Sales support 0987636779 Mr Ng. Sáu (Vi / Eng)
- Technical support 0982870339 Mr H. Thái (Vi / Eng)
- TINTA Reception 028 66736186 Ms Thùy Dung