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Metal Hemispheres & Metal Cones at Helander Metal Spinning

Metal Hemispheres

These featured metal hemispheres are manufactured by Helander Metal Spinning Company for aerospace and geological applications and other uses. Working with aluminum, copper, brass, steel, and other materials, we apply a combination of CNC metal spinning, hot spinning, machining, welding, and polishing to fabricate our spheres. We can achieve up to a #4 brush finish, and hold tight tolerances down to 0.005 of an inch. Final material thicknesses range from 0.018 of an inch to ¾ of an inch, with a maximum 60" outside diameter width and a maximum 30" product height.  We're happy to accommodate orders between 1 and 50,000 pieces. To learn more about our metal hemispheres, please contact Helander Metal Spinning Company.

Metal Cone and "Bullet" Shapes

Appropriate for a range of industries, such as concrete testing, alternative energy, and soil testing, these featured metal cone and bullet shapes are manufactured using a combination of CNC metal spinning, hydroforming, and double roller shear forming. Helander Metal Spinning Company can fabricate these metal shapes from aluminum, copper, brass, stainless steel, or carbon steel, and we offer either zinc plating or #4 polish material finish. We feature a material thickness between 0.030" and 0.250", and can achieve a maximum product outside diameter of 48" and a product height up to 36". Our superior methods enable us to hold tolerances down to +/- 0.010", and we can handle orders of up to 50,000 pieces. To learn more about out metal cone and bullet shapes, please contact us today.

(click on thumbnail to enlarge)
Polished Aluminum HemispheresBlue Annodized and Electro polished aluminum hemispheres for the diamond industry. 5” diameter. Formed on a hydroform press.
Blue Annodized and Electro polished aluminum hemispheres for the diamond industry. 5” diameter. Formed on a hydroform press.
manually spun aluminum hemisphere for lighting36” 0.125” thick 100-0 aluminum hemisphere with a lavender gloss paint for lighting. Manually spun.
36” 0.125” thick 100-0 aluminum hemisphere with a lavender gloss paint for lighting. Manually spun.
aluminum hemispheres welded together36” diameter Four 0.250” thick 3003-0 aluminum hemispheres welded together for a science museum display.
36” diameter Four 0.250” thick 3003-0 aluminum hemispheres welded together for a science museum display.
hydroformed Stainless steel welded sphere with a tube welded in the middleStainless steel welded sphere 24 gage stainless steel with a tube welded in the middle. Formed on a hydroform.
Stainless steel welded sphere 24 gage stainless steel with a tube welded in the middle. Formed on a hydroform.
welded lugs formed on a CNC spinning lathe30” diameter X 18” height X 12 gage
304 s/s with welded lugs for food industry
formed on a CNC spinning lathe.
30” diameter X 18” height X 12 gage 304 s/s with welded lugs for food industry formed on a CNC spinning lathe.
funnel Formed on a CNC spinning lathe.3.00” diameter x 5” height, 316 s/s funnel
made out of 14 gage. Both inside and
outside diameters are polished.
Formed on a CNC spinning lathe.
3.00” diameter x 5” height, 316 s/s funnel made out of 14 gage. Both inside and outside diameters are polished. Formed on a CNC spinning lathe.
steering column Formed on a CNC Spinning lathe. Outside surface done on CNC turning lathe.16 gage 304 s/s steering column 3.90”
diameter X 3.60” height. Formed on a
CNC Spinning lathe. Outside surface is
turned for the required finish on a
CNC turning lathe.
16 gage 304 s/s steering column 3.90” diameter X 3.60” height. Formed on a CNC Spinning lathe. Outside surface is turned for the required finish on a CNC turning lathe.
Parabolic Steel Metal Cone pre-formed on a hydroform press then spun on a double roller shear form lathe. 10 gage steel parabolic cone 7.00”
diameter X 8” height. Part was pre-formed
on a hydroform press and Spun on
a double roller shear form lathe.
Used as a support cone for a
solar energy project.
10 gage steel parabolic cone 7.00” diameter X 8” height. Part was pre-formed on a hydroform press and Spun on a double roller shear form lathe. Used as a support cone for a solar energy project.
Assembled brass metal cone spun on CNC spinning lathesAssembled brass cone attached by silver solder. Both top cone and bottom are spun on CNC spinning lathes and the top cone has a rolled thread with a cnc machined valve in the middle.
Assembled brass cone attached by silver solder. Both top cone and bottom are spun on CNC spinning lathes and the top cone has a rolled thread with a cnc machined valve in the middle.
hydroformed Eccentric coneTwo piece assembly. Eccentric cone
with flange is hydroformed out of
one piece and tube is GTAW(TIG)
welded on top. 16gage 304 s/s.
Two piece assembly. Eccentric cone with flange is hydroformed out of one piece and tube is GTAW(TIG) welded on top. 16gage 304 s/s.
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Specifications for Metal Hemispheres & Metal Cones

Capabilities Applied/Processes CNC Spinning, Hot Spinning, Machining, Polishing, Welding
Typical Tolerance (+/-.015")
Material Thickness 0.018" to 0.750"
Typical Product Width 60" diameter
Typical Product Height 30" height
Cutting Method CNC Turning
Material Used Aluminum, Copper, Brass, Steel, Stainless, Titanium, Hastalloy, Inconnel, Monel
Material Finish #4 brush finish
Industry for Use Aerospace, Geological, Laboratory, Gage Instrumentation, Food
Typical Delivery Time 4 to 12 weeks
Delivery Location International

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