How This Public Trash Can Is Fabricated and Checked

A 100 litre public bin has to survive weather, fill weight and being handled every day, often by people who did not buy it. The fabrication is simple. What decides whether it lasts is the drainage, the choice between welded and bolted assemblies, and the fixing to the ground.

The seam is welded in a fixture to hold the diameter, and the galvanizing that follows is a surface treatment with its own requirements on the design rather than simply a coating.

Changes Public Trash Can Absorb Without New Tooling

The bin is cut, rolled and welded, so size and layout are open. Changes to the maintenance or fixing approach are the ones worth agreeing early.

Public Trash: Common Buyer Questions

Should the dome be welded or bolted on?

It is a trade-off between repairability and resistance to being forced, and there is no single right answer. A welded lid cannot be removed by someone with a bar, which matters in a location where the bin is a target. A bolted lid can be taken off for repair, which matters in a location where the lid takes impact damage – a hit dome on a welded bin means the whole bin comes back. Tell us what happens on site: how the bin is emptied, and whether the location has a history of damage. The detail is chosen from those answers.

How does water drain from the bin?

The dome keeps most rain out and the base carries drainage openings so that anything that does get in leaves. Both details are cut into the components at the laser stage. The one arrangement to avoid is a flat top with no drain: water then sits inside on the base and attacks the base weld, which is the hardest weld to repair on an assembled bin. If a liner is used, the liner also has to drain or be solid – a perforated liner over a solid base just moves the problem.

Can it be anchored to the ground?

Yes, and for a 100 litre bin it usually should be. The base plate can be prepared with anchor holes at standard centres, or to your pattern. Two points are worth settling: whether the fixings will be loose or fixed (loose fixings let the bin be knocked out of line and can be removed by anyone with a spanner), and how the anchor interacts with the galvanizing. If the anchor holes are drilled after galvanizing, the cut edge is unprotected and will rust; if they are punched or cut before the dip, they are coated inside and the fixing has to be sized to fit over the coating.

Send the capacity you need, the lid arrangement, whether an inner liner is part of your range, and how the bin will be emptied and fixed. Drainage and the base detail both follow from those answers. Send your specification for a quotation.

Bins are wrapped rather than boxed and are never stacked wet – more detail in the packaging guide.

Water Gets Into a Public Bin From the Ground More Often Than From the Sky

A dome top is the visible answer to rain, and it works for rain that falls from above. It does nothing for the water that a bin stands in. In practice the inside of a public bin is wetted from below – by a liner that has been rained into before it was emptied, by cleaning, and by condensation on the inside of a steel shell that heats up in sun and cools at night. That water sits at the lowest point, which is the seam between the shell and the base, and that seam is where a bin starts to rust.

• A drain path at the base costs nothing at the laser stage and it is the single most effective thing on this product. A bin with no drain will hold water permanently.
• An inner liner is usually specified for bag handling, but it also protects the shell from the contents. If the liner is specified, the shell finish can be chosen for weather rather than for chemical resistance.
• The base should be detailed so it does not sit flat in standing water. Ground anchoring and drainage are specified together, not separately.

Galvanizing a 1.2 mm Shell Means Venting It Properly

A 1.2 mm shell is thin enough that the zinc bath is a distortion risk as well as a coating operation, and a closed or near-closed shape is the worst case. Air trapped inside expands violently when the part goes into molten zinc at roughly 450 degrees, and zinc that cannot drain out adds weight and leaves an internal bead that nobody will ever see. Both problems are solved on the drawing, not in the bath: vent and drain holes in positions where they do their job and where they are not visible in service.

The other predictable issue is at the edges. A laser-cut edge is clean and square, and a square edge holds less coating than a rounded one, which is why edges and corners are where galvanized sheet shows wear first. For a bin that is emptied by being tipped and dragged, the bottom edge takes the abrasion. Tell us how the bin is emptied and whether it is moved on its rim, and the base detail and the edge treatment change accordingly. Lead time is quoted after drawing review and process confirmation.

Payment Terms

How a project is paid for is agreed before production starts, and the structure that applies to your order is stated on the quotation and on the order confirmation, so there is no ambiguity later.

• 30% advance payment with the order and the 70% balance before shipment — our standard structure.
• 70% advance payment with the order and the 30% balance before shipment — used for some projects.
• 100% payment in advance before production starts — used for some projects.

If your finance team works to a fixed structure, say so in the first enquiry and we will confirm what applies to your order before you commit. Request a quotation.

Questions buyers ask before sending drawings

The questions that come up most often before a project starts, answered the way we answer them by email.

What do you need from me to quote Public Trash Can?

2D drawings as PDF, DWG or DXF, or 3D files as STEP, IGES or SolidWorks, together with material grade, sheet thickness, surface finish, quantity and destination country. If the drawing is not finished yet, send a photo, a sketch or the existing part instead — we review what can be measured from it and reply with the questions that still need answering.

How long does a quotation take?

Enquiries are answered within one business day. Simple laser-cut and bent parts are quoted within 24 hours. Welded frames, assembled units and multi-part structures are quoted after the drawing review and process confirmation, and the date is confirmed in our reply.

Is there a minimum order quantity?

Prototypes are made from a single piece and small batches of 10–50 pieces are routine. Prototype, first batch and repeat volume are quoted together so the numbers stay consistent as the project scales.

Can you work from a sample or a photo if I have no drawing?

Yes. Send the part itself, clear photographs with a rule or caliper in frame, or a dimensioned sketch. We measure what can be measured, list what is still undefined, and confirm it with you before production.

Send Your Drawings

Need a Similar Part?

Most enquiries that start on a page like this are not an order for Public Trash Can — they are a search for a factory that can make something like it. Send us your drawing, 3D model or sample and we will review the manufacturing process and the quotation requirements, then come back with a process plan, a price and a lead time.

We work from 2D drawings, STEP / DWG / DXF / PDF files, or a physical sample if that is all you have.

Send Your Drawings

No complete drawings yet? Describe the part, send photos or a sketch, or send a sample — we can start from there. Discuss your project.

Trade Terms and Delivery

We quote under the standard Incoterms your logistics team already works with, and build the packing and documentation around the one you choose.

• EXW — you collect from our Ningbo facility and run export clearance through your own forwarder.
• FOB Ningbo — we deliver to the vessel at Ningbo port and handle export clearance.
• CIF — we cover carriage and insurance to your named destination port.
• DDP — we handle carriage, insurance, import clearance and duties through to your door.

Send your destination country, target delivery date and preferred trade term together with the drawing. Request a quotation.

Quotation Time

We quote from your drawings. How long that takes depends on what the part asks for:

• Simple parts — quoted within 24 hours. Laser-cut blanks and bent components, supplied with complete 2D or 3D drawings. Mon–Fri, GMT+8.
• Complex assemblies — quoted after the drawing review. Payment kiosks, multi-part welded frames, enclosures with purchased hardware, or anything needing a coating or assembly trial. We confirm a quotation date once the scope is clear.

Production lead time is quoted separately, after drawing review and process confirmation. Send your drawings.

What stands behind this quotation

• Manufacturing since 20162,500 m² Ningbo plant — 3 laser cutting machines (including newer TRUMPF), 4 CNC press brakes and 10 welding stations.
• Shipped to more than 30 export marketsEnclosures, cabinets and formed parts supplied to OEM buyers across Europe, North America and Asia.
• 123 documented product casesMedical device housings, HVAC and heat pump enclosures, agricultural and livestock equipment, industrial hydraulics, material handling trolleys and EV charging cabinets.
• Factory evidence you can checkTUV Rheinland audit reference MIC-ASI243729 and Bureau Veritas reference MIC-ASR263630 available for buyer review under NDA.

Before you send drawings: an NDA is signed on request · first-article inspection is carried out before a batch continues · pricing is staged from prototype quantity to repeat volume · pre-shipment photos and packing records are prepared when the project needs them.