1100mm Mirror Polished Large Stainless Steel Hollow Sphere
Hollow stainless steel sphere with a diameter of 1100 mm, fabricated from AISI 304 stainless steel sheet using water pressure forming. The sphere is seam welded, ground smooth, and mirror polished to a seamless finish. Wall thickness ranges from 0.6 mm to 5 mm, selected to match the application. Designed for outdoor and indoor decorative use, the sphere can be customised in size, finish, and mounting. Fabricated to order in Shenzhen, China, with delivery in 15 to 25 days after deposit.
Key Benefits
- Hollow construction keeps a 1100 mm sphere light enough for two people to handle and set with a trolley
- Mirror polish holds its reflective surface outdoors without repainting or fading
- Wall thickness selectable from 0.6 mm to 5 mm to balance cost and structural needs
- Welded pedestal, spigot or base plate can be added before polishing for site-ready installation
- Drilled and tapped holes can be positioned to your drawing before final finish
- No standard die limits size, so any diameter from 20 mm to 4000 mm is possible
Problems It Solves
- Painted steel spheres develop rust at the seam and require repainting every few seasons
- Buying spheres from multiple suppliers results in inconsistent polish and finish
- Drilling a finished mirror sphere on site scratches the surface and ruins the finish
- Standard die sizes limit custom diameters, forcing compromises in design or scale
Application Scenarios
Large gazing sphere in a public park or private garden as a focal point
Outdoor sculpture installation where a reflective sphere enhances the surrounding space
Interior feature in a hotel lobby, atrium or corporate entrance with a mirror finish
Architectural accent in a modern building facade or entrance canopy
VFX HDRI reference ball for film and digital rendering studios
Decorative sphere in a commercial display or Christmas installation
Who It Is For
- Landscape architects specifying a large reflective element in a public or private landscape
- Public art commissioners needing a custom-sized, site-ready sculpture
- Hotel and interior designers integrating a mirror sphere into a high-end space
- Property developers installing a signature feature in a new residential or commercial complex
- Film and VFX studios requiring a high-accuracy HDRI sphere for lighting capture
- Sculpture installers sourcing a ready-to-mount sphere with custom fixing
Technical Features
- Formed from AISI 304 stainless steel sheet using water pressure to shape hemispheres
- Two hemispheres welded together with a precise seam, then ground to a smooth, invisible joint
- Mirror polished through progressive grits to achieve a specular reflective surface
- Wall thickness from 0.6 mm to 5 mm, selected based on structural and cost requirements
- Pedestal, spigot or base plate can be welded on before polishing for site-ready mounting
- Drilled and tapped holes can be positioned to your drawing before final finish
- Optional finishes include gold, black, rose gold and colourful candy coatings
Specifications and Materials
| Material | AISI 304 stainless steel |
|---|---|
| Diameter | 1100 mm (customizable from 20 mm to 4000 mm) |
| Wall Thickness | 0.6 mm to 5 mm |
| Forming Method | Water pressure forming, seam welded |
| Standard Finish | Mirror polished |
| Optional Finishes | Gold, black, rose gold, colourful candy coatings |
| Secondary Operations | Drilling, tapping, pedestal or base welding |
| Lead Time | 15 to 25 days after deposit received |
| Packing | Wooden stand or gift cardboard box |
| Payment Terms | T/T, 50% deposit and 50% balance before shipping |
| Place of Origin | Shenzhen, China |
Materials
- AISI 304 stainless steel, suitable for general outdoor and indoor decorative use
- Carbon steel available on request for applications where the ball is fully coated or used inside a closed system
Customization
- Any diameter from 20 mm to 4000 mm, not limited by standard tooling
- Wall thickness chosen based on application, not a fixed default
- Hole positions, thread types and pedestal design matched to your drawing
- Welded base, flange or spigot added for the mounting system you already have
- Colour finishes matched to your sample or reference, including gold, black, rose gold and candy colours
- Multiple spheres in a set can be polished in the same batch for consistent appearance
How It Is Made
- Step 1Sheet cut and blanked to the required diameter and thickness
- Step 2Hemispheres formed using water pressure to achieve precise curvature
- Step 3Halves fitted and seam welded into a closed sphere
- Step 4Weld seam ground and blended until invisible under reflection
- Step 5Holes drilled and threads tapped, pedestal or base plate welded on
- Step 6Mirror polished through progressive grits, or finished with optional colour coating
- Step 7Protective film applied, foam wrapped, and packed in wooden stand or cardboard box
Quality Control and Use
Quality Control
- Seam inspected under reflected light to ensure no flat spots or visible welds
- Diameter and wall thickness verified against the order before polishing
- Thread holes checked for pitch and depth after tapping
- Finished sphere kept under protective film until packing
- Photographs of the finished sphere sent for approval before balance payment
Use Guide
- Specify diameter, wall thickness, finish and fixing type when requesting a quote
- Send base or plinth detail so the pedestal is welded in the correct position
- Keep the protective film on until the sphere is bolted down and the site is clean
- Clean with soft cloth and water; never use wire brushes or chloride-based cleaners
Compared With The Alternatives
| Alternative | How this product compares |
|---|---|
| Cast or solid steel spheres | Much lighter for the same diameter, so installation needs less lifting plant, but a hollow ball is not a load bearing element |
| Painted mild steel spheres | No repainting cycle and no seam rust, at a higher first cost |
| GRP or acrylic spheres | Real specular reflection and no yellowing outdoors, but heavier and slower to produce |
| Stainless steel hemispheres | A closed sphere reads as a complete form, while a hemisphere is cheaper when it sits against a wall or floor |
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View DetailsGuides That Help You Specify This
AISI 304 vs 316 Stainless Steel for Outdoor Sculpture
When 304 is enough, when 316 earns the extra cost, and why chloride rather than rain is what actually attacks a polished surface.
How to Choose Wall Thickness for a Stainless Steel Sphere
What 1 mm, 2 mm and 6 mm walls actually change, and why thickness is a handling decision more than a strength one.
Mirror Polishing Explained for Stainless Steel Sculpture
Why the quality of a mirror finish is decided during welding and fixing, long before the piece reaches the polishing shop.
Questions About 1100mm Mirror Polished Large Stainless Steel Hollow Sphere
What is the largest size you can make?
Up to 4000 mm in diameter, with no standard die limiting size
How long does delivery take?
15 to 25 days after the deposit is received
Can I choose the wall thickness?
Yes, from 0.6 mm to 5 mm, selected based on your application and budget
Can you add a pedestal or base?
Yes, welded before polishing so it arrives ready to mount
How are large spheres packed?
On a wooden stand inside a cardboard box or wooden case, depending on size
What payment terms do you use?
T/T with 50% deposit and 50% balance before shipping. Photographs of the finished sphere are sent before the balance is invoiced
Get a Price on 1100mm Mirror Polished Large Stainless Steel Hollow Sphere
Send the size, finish and fixing you need and we will come back with a price and a lead time for 1100mm Mirror Polished Large Stainless Steel Hollow Sphere.