Stainless Steel Hemisphere
3000mm metal sphere stainless steel hollow metal sphere
A hollow stainless steel sphere is designed for outdoor placement in gardens, parks, or public squares, where its mirror-polished surface reflects the sky, surrounding landscape, and passing people. This piece is a 3000mm diameter sphere, made from 304 or 316 stainless steel, and is intended to serve as a striking focal point in open spaces. The listed size is 3000mm, and like almost every item in the catalogue, it is made to custom size on request. The body is formed from two hemispheres welded together and finished with a mirror polish that enhances the visual impact of the surrounding environment.
| Material | 304 or 316 Stainless steel |
|---|---|
| Size | 3000mm, or custom size |
| Surface | Mirror polished |
| Production Time | 25 to 30 days |
| Transport Time | 15 to 20 days |
| Packing | Outer standard wooden crate, inner in plastic or foam |
Dimensions and materials outside this table are confirmed against your duty sheet before quotation.
Key Benefits
What This Nozzle Gives You
- Mirror polish creates a dynamic reflection that changes with light and movement throughout the day
- Hollow construction reduces weight at large diameters, simplifying foundation and installation
- 304 stainless steel for general outdoor use or 316 where exposure to salt or harsh weather is expected
- Custom diameter available, with no standard size limiting the fit to the site
- Production time of 25 to 30 days, with transport taking 15 to 20 days, allowing for planning around site completion
- Wooden crate with inner plastic or foam protection ensures the polished surface survives shipping
Application Scenarios
Where It Is Installed
- A public park where a single object must anchor a large open lawn or garden space
- An urban garden or courtyard that needs a modern, reflective centrepiece without a figurative form
- A hotel entrance forecourt where the sphere reflects the building facade and arriving guests
- A residential garden with a paved area that lacks a visual landmark
- A corporate campus or shopping mall plaza where the sphere acts as a contemporary art feature
Who It Is For
Buyers Who Specify It
- Landscape architects specifying a reflective, geometric focal point in a public garden
- Property developers commissioning a durable, low-maintenance sculpture for a residential or commercial site
- Hotel and resort designers placing a sculptural element in an arrival zone or courtyard
- Art consultants sourcing a large-scale, mirror-finish sphere for a public art installation
- Municipal clients replacing a worn or outdated centrepiece in a park or square
Problems It Solves
What It Fixes on the Line
- A garden or park that lacks a visual anchor and reads as empty or unfinished
- A site that needs a modern, non-figurative sculpture but has no room for a large statue or fountain
- Off-the-shelf spheres that come in fixed sizes and do not match the intended space
- Metal sculptures that degrade quickly in outdoor conditions due to corrosion or finish loss
- A commission based on a photograph with no technical drawing, requiring a precise replication
Technical Features
How It Is Built
- Hollow shell formed by shaping two hemispheres over a mould and welding them 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 polish applied after welding and grinding to achieve a reflective surface
- Custom diameter as standard, not as a special order, with no size limit beyond the listed 3000mm
Materials
Body Materials and Where Each One Suits
- 304 stainless steel for general outdoor exposure in urban or suburban environments
- 316 stainless steel for coastal areas or sites where de-icing salts are used in winter
- Mirror polish that reflects the surrounding space with high clarity and depth
- Hollow construction that reduces weight while maintaining structural integrity
- Stainless steel’s resistance to corrosion and high temperatures, suitable for permanent outdoor use
Manufacturing Process
How the Part Is Made
- Scheme design developed against the site to determine form, size, and finish
- Small model created and scaled up with internal support structure designed in parallel
- Plaster mould taken from the model to shape the hemispheres
- Steel plate forged to the mould and ground repeatedly to form the shell
- Surface polished to mirror finish after welding and grinding
- Welded assembly completed on site to ensure the joint is fully finished and seamless
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 polishing is part of the published method
- Inner plastic or foam padding protects the surface during transport in the wooden crate
Customization
What Can Be Changed to Suit You
- Any diameter to specification, with the company stating spheres from 25 mm to 10 m
- Mirror polish as standard, with no mention of brushed or painted finishes in this listing
- 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 site’s wind load and foundation requirements
Comparison
How It Compares With the Alternatives
| A painted steel sphere | Painted steel is cheaper initially but requires repainting every few years; stainless steel maintains its finish permanently |
|---|---|
| A concave mirror piece | A concave surface distorts and inverts the reflection at close range, while a full sphere provides a clean, undistorted view from all angles |
| A fiberglass sphere | Fiberglass is lighter and cheaper at large sizes but cannot be mirror polished and is not suitable for long-term outdoor exposure |
| A corten steel form | Corten steel is chosen for its weathered, changing surface; this mirror sphere is chosen for a consistent, reflective appearance |
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, trees, building facades, or people
- Plan for a foundation and fixing detail sized to withstand wind load at large diameters
- Clean the 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
- Allow 25 to 30 days for production plus 15 to 20 days for transport when scheduling the installation
Questions Buyers Ask
3000mm metal sphere stainless steel hollow metal sphere Questions
What size is this metal sphere and can it be made larger?
The listed size for this piece is 3000mm, 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 grade will I get for this sphere?
This sphere is made in #304 or #316 stainless steel. Tell us whether the site is coastal or exposed to road salt in winter, and we will confirm which grade suits the exposure.
Is the surface mirror polished or brushed?
This sphere is mirror polished as standard. The listing does not include brushed or painted finishes for this specific item.
How long from order to delivery for this sphere?
The listing states a production time of 25 to 30 days, with transport taking 15 to 20 days. Plan accordingly based on the site completion date.
How is this sphere packed for shipping?
In an outer standard wooden crate with inner plastic or foam protection, which is designed to keep the mirror surface intact during transit.
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 desired diameter, and the intended location.
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