Stainless Steel Hemisphere
250cm large metal spheres stainless steel hollow balls stainless steel ball
A hollow stainless steel sphere is a simple geometric form that becomes a dynamic presence in any open space, reflecting sky, light, and movement with a mirror surface. This piece is designed for outdoor gardens, public squares, or large interior halls where a single object must hold visual weight without figurative detail. The listed size is 250 cm, and like almost every item in this catalogue, it is made to any custom diameter on request. The body is constructed from 304 or 316 stainless steel, finished mirror, brushed, or painted, and the stated production time is 25 to 30 days.
| Material | 304 or 316 Stainless steel |
|---|---|
| Size | Custom size |
| Production Time | 25-30 days |
| Transport Time | 15-20 days |
| Packing | Outer standard wooden crate, inner in plastic or foam |
| Delivery | Factory Direct, Door to Door Delivery |
Dimensions and materials outside this table are confirmed against your duty sheet before quotation.
Key Benefits
What This Nozzle Gives You
- A mirror finish turns the sphere into a living reflection of the surrounding space, changing with the light and time of day
- Hollow construction reduces installed weight, especially important at large diameters
- 304 for general outdoor use or 316 where exposure to salt, moisture, or de-icing chemicals is expected
- Surface finish—mirror, brushed, or painted—is applied to the same shell, ensuring consistency across the entire surface
- 250 cm as listed, or any diameter the site requires, with no fixed size limits
- Wooden crate packing with inner plastic or foam protection, and door to door delivery from factory
Application Scenarios
Where It Is Installed
- A public square where a single object must anchor an open paved area without competing with architecture
- A garden courtyard that needs a reflective landmark visible from multiple angles
- An entrance hall or lobby where the sphere acts as a focal point against glass or stone walls
- A hotel forecourt where arriving guests see the piece before the building, creating a memorable first impression
- A corporate campus or shopping mall atrium where the sphere adds modernity and visual interest
Who It Is For
Buyers Who Specify It
- Landscape architects specifying a minimalist focal point for a large paved area
- Property developers commissioning a durable, low-maintenance sculpture for a residential or commercial project
- Hotel and resort designers placing a reflective object in a high-visibility arrival zone
- Art consultants sourcing a contemporary, geometric form with consistent finish quality
- Municipal or civic clients replacing a worn or outdated centrepiece in a public space
Problems It Solves
What It Fixes on the Line
- An open space that lacks a visual anchor and reads as empty or unfinished
- A site that needs a landmark but has no room for a figurative or tall sculpture
- Off-the-shelf spheres that come in only three standard sizes, none of which fit the space
- Painted metal sculptures that degrade quickly and require regular repainting
- A commission based on a photograph with no technical drawing, requiring a fabrication team that can interpret visual references
Technical Features
How It Is Built
- Hollow shell formed from two hemispheres over a mould, then welded together
- Weld joint ground and polished to be invisible on the finished surface
- 304 or 316 stainless steel body selected based on environmental exposure
- Mirror, brushed, or painted finish applied to the same shell for uniform appearance
- Custom diameter as standard, not as a special order, with no size limits stated
Materials
Body Materials and Where Each One Suits
- 304 stainless steel for general outdoor exposure in urban or sheltered environments
- 316 stainless steel where coastal air, road salt, or winter de-icing is present
- Mirror polish, which reflects the surrounding environment with clarity and precision
- Brushed finishing, which reduces glare and hides minor surface marks from handling
- Painting, used when the design calls for colour rather than reflective surface
Manufacturing Process
How the Part Is Made
- Scheme design developed against the site, setting form, size, and finish based on context
- Small clay model created and scaled up, with internal support structure designed alongside
- Plaster mould taken from the model to guide the forging process
- Steel plate forged to the mould and ground repeatedly to build the shell thickness
- Surface treated with mirror polish, brushed finish, or paint after final shaping
- Welded assembly completed on site, allowing the joint to be finished flush
Quality Control
What Is Checked Before It Ships
- The company states it runs its own professional QC team
- Weld between hemispheres is ground and polished to be flush, not raised
- Repeated grinding before surface treatment ensures a smooth base for polishing
- Inner plastic or foam padding inside the wooden crate protects the surface during transit
Customization
What Can Be Changed to Suit You
- Any diameter to specification; the company states spheres from 25 mm to 10 m
- Mirror, brushed, or painted finish available on the same shell
- 304 or 316 stainless steel selected based on site exposure
- Ordered from a photograph or a drawing supplied by the customer
- Base and fixing detail designed to match the installation site and wind load
Comparison
How It Compares With the Alternatives
| A painted mild steel sphere | Painted steel is cheaper upfront but requires repainting every few years; stainless steel maintains its finish permanently |
|---|---|
| A concave mirror piece | A concave face distorts and inverts the image at close range, while a full sphere reflects clearly from any distance |
| A fiberglass sphere | Fiberglass is lighter and cheaper at large sizes but cannot be polished to a mirror; better suited for indoor or temporary installations |
| A corten steel sphere | Corten is chosen when the surface is meant to weather and change over time; a mirror sphere is chosen when it should remain unchanged |
Use Guide
Fitting and Running It
- Set the diameter against the open space around it, not against a catalogue size
- Place the sphere where it has something worth reflecting—sky, water, planting, or architecture
- Allow for a foundation and fixing detail sized to withstand wind load at large diameters
- Clean a mirror surface with water and a soft cloth; avoid abrasives that damage the polish
- Specify 316 stainless steel if the site is coastal or exposed to road salt in winter
- Plan 25 to 30 days for production, plus 15 to 20 days for transport, from the installation date
Questions Buyers Ask
250cm large metal spheres stainless steel hollow balls stainless steel ball Questions
What size is this stainless steel sphere and can it be made larger?
The listed size for this piece is 250 cm, and like most of this catalogue it is also made to custom size. The company states stainless steel spheres from 25 mm up to 10 m in diameter.
Which stainless steel grade will I get?
This sphere is made in #304 or #316 stainless steel. Tell us whether the site is coastal or salted in winter and we will confirm which grade suits the exposure.
Mirror, brushed or painted finish?
All three are available for this piece. Mirror gives the strongest reflection, brushed reduces glare and hides handling marks, and painting is used where the scheme calls for colour.
How long from order to delivery for this sphere?
The listing states a production time of 25 to 30 days. Sea freight takes 15 to 20 days, so work back from the installation date.
How is this polished sphere packed?
In an outer standard wooden crate with inner plastic or foam protection, which is part of the Factory Direct and Door to Door Delivery service.
Can you build one from a picture I have?
Yes. The workshop takes orders according to a photograph or a drawing from the customer. Send the reference image, the diameter you want, and where it will stand.
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