Tank Ends Built to Hold Pressure.
Compressor tanks are rated pressure vessels, so their ends have to be right every time. We cut and draw elliptical tank ends with consistent wall thickness and the traceability your quality team asks for.
What We Make for Air Compressors.
Circle Blanks
Blanks from hot rolled pickled and oiled steel, sized for the tank end.
Drawn Ends
Elliptical ends drawn with an even wall, ready for the girth weld.
Heat-Number Traceability
Every lift tagged with its heat number, so each end ties back to its mill cert.
Built to hold pressure. Traced to the heat of steel it came from.
Built to Hold Pressure.
A compressor tank is a pressure vessel, and its rating starts with the steel and the wall. The tank maker's engineer sets the grade and thickness, commonly a hot rolled pressure-vessel grade, and we cut and draw to that spec, in your coil or steel bought to it through Heidtman Steel.
Most compressor tanks are a rolled shell with a drawn end welded to each side. Propane cylinders and extinguishers are usually two drawn halves instead; those are on Pressure Cylinders.
Why Buyers Bring This Part to Us.
An Even Wall
Blank size, grade and draw die worked out together, so the end keeps the thickness the rating needs.
Heat-Number Traceability
Every lift tagged with its heat number, tied back to the mill cert.
Blanks or Finished Ends
Circle blanks for your own draw presses, or drawn ends ready for the girth weld.
How the Parts Are Made.
Each step links to a short lesson with an animation, if you want to see what happens on the floor.
Set the Wall
Wall thickness sets the pressure rating, so the gauge comes from your engineer.
Lesson: What Gauge MeansCut the Circle
Blanks are cut from coil with the heat number recorded.
Lesson: How a Coil Becomes BlanksDraw the End
The draw forms the elliptical end with an even wall.
Lesson: How a Blank Becomes a Drawn PartTag and Pack
Every lift carries its heat number back to the mill cert.
Lesson: How Blanks Are Packed
Got a Print? Get a Price.
Upload the drawing and the yearly volume. The quote form asks for the rest, and an estimator follows up.
Tank Ends, Explained.
Can you supply blanks for our own draw presses?
Yes. We can ship circle blanks, or drawn ends ready for the girth weld.
How do you keep the wall even?
The blank size, the grade and the draw die are worked out together, and first pieces are measured against your print before the run.
Can each end be traced to its steel?
Yes. The heat number goes on every lift and ties back to the mill cert.
How big a blank does an end need?
Start with the Cup Blank Size Calculator, then send the print and we will check it against the draw.