Heads for Propane Cylinders and Fire Extinguishers.
Propane cylinders and fire extinguishers are rated pressure vessels, and every one starts as a circle. We cut the blanks and draw the top and bottom halves, with the heat number on every lift so each part ties back to its mill cert.
What We Make for Pressure Cylinders.
Circle Blanks
Round blanks in pressure-vessel grades, sized for the draw.
Drawn Halves
Top and bottom halves drawn to an even wall, ready for the girth weld.
Valve Boss Openings
The opening for the valve boss pierced in the same run.
Heat-Number Traceability
Every lift tagged with its heat number, so each half ties back to its mill cert.
Every cylinder starts as a circle. Every lift traced to its mill cert.
Two Halves, One Weld.
Most small propane cylinders and fire extinguisher shells are two drawn halves joined by one girth weld, and the wall has to stay even all the way round.
The grade and wall come from the cylinder's spec, commonly a hot rolled pressure-vessel grade. We work to it, in your coil or steel bought to it through Heidtman Steel.
Why Buyers Bring This Part to Us.
Blank and Draw in One Plant
The blank is sized for the half and drawn down the aisle, with the draw plan worked out from your print.
Valve Boss Opening
Pierced in the same run as the draw.
Heat Number on Every Lift
So each half ties back to its mill cert.
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 Half
The draw forms the half 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.
Cylinder Parts, Explained.
Is the valve boss opening pierced here?
Yes, in the same run as the draw.
How deep can you draw a half?
It depends on the diameter, the grade and the gauge. Send the print and we will tell you how we would run it.
Can each half be traced to its steel?
Yes. The heat number goes on every lift and ties back to the mill cert.
Can you supply blanks for our own draw presses?
Yes. We can ship circle blanks sized for the half.