Shot blasting of metal parts
We carry out surface treatment to clean, matt or prepare metal parts before painting, coating or a specific finish.
Cleaning · Texture · Preparation
What is shot blasting?
Shot blasting projects abrasive against the part to clean the surface and give it a uniform texture. It removes rust, mill scale and other process residues that would otherwise be trapped under any subsequent layer.
What it solves is coating durability. Paint applied to a dirty or overly smooth surface eventually lifts; on a blasted surface, the layer keys in and lasts. That is why blasting is the standard step before painting or coating.
It is also used as a finish in its own right when a uniform matt appearance is wanted across the whole part.
Materials and thicknesses for shot blasting
Metals and sheet thicknesses we work with as standard. If your industrial project needs a material that is not in the table, say so in your enquiry and our engineering office will confirm whether we can handle it.
This service works with the same materials and thicknesses as the rest of the plant. The full table is on the Sheet metal laser cutting page.
CAD file formats accepted for quoting
- DXF
- DWG
- STEP / STP
- STL
- IGS / IGES
- PNG
- JPG
With DXF, DWG or STEP we work straight from your file geometry: no need to redraw the part, and the quote comes back sooner.
We do more than check the drawing: we advise you on nesting (how the sheet is used) so you get the lowest possible price per part before anything is cut.
How our engineering office works
If you would rather not fill in the form, send the drawing straight to cata@catagermans.com.
Confidential handling. Your drawings are only used to prepare the technical assessment and are not shared with third parties. If you need a signed non-disclosure agreement, send it over.
Technical capabilities for shot blasting
| Purpose | Surface cleaning, matting and preparation for coating |
|---|---|
| Use | Step before painting or coating, or a final matt finish |
| Materials | Metal parts made in the same plant or supplied by the customer |
Applications and types of custom metal parts
- Surface preparation before painting or coating.
- Removing rust and process residue from metal parts.
- Uniform matt finish on visible parts.
- Evening out the surface of welded assemblies.
Sectors we manufacture for
We manufacture for industrial companies across very different sectors. These are some of the most common ones, but not the only ones: if yours is not listed, tell us about the part and we will confirm whether we can make it.
- Automotive
- Food industry (stainless steel)
- Agricultural machinery
- Construction
- Steel structures
- Energy
- Street furniture
Why work with Catà Germans
- Every process under one roof
- Cutting, forming, machining, welding and finishing in the same plant. We handle the whole logistics side so you receive the parts palletised and protected at your own factory, anywhere in Catalonia and the surrounding area, on the agreed lead time.
- In-house engineering office
- We review the drawing before manufacturing and prepare production from CAD/CAM. If something does not add up, we ask you instead of interpreting it ourselves. And if what you have is a sketch or a question, we will help with that too: advice is part of the service.
- From drawing to finished product
- Some finishes, such as painting or zinc plating, are done with specialist workshops. We handle the coordination and deliver with our own fleet: a single order and a part ready to fit.
- Raw material in stock
- We keep sheet and tube permanently in stock, so many standard jobs can start without waiting for material.
- Over 65 years of the trade
- A family business founded in 1958, specialised in industrial subcontracting of metal parts. You deal directly with the people who make the part.
Frequently asked questions
Do you paint the parts after blasting?
Blasting is the preparation step we do in-house. If your project needs paint or a specific coating, mention it in your enquiry and we will confirm how it is handled within the overall job.
What surface preparation grade do you reach?
If your project requires a standardised preparation grade, mark it on the drawing and we will confirm feasibility.
Can stainless steel be blasted?
Treating stainless requires specific precautions so its surface is not compromised. Ask us about the specific part and we will advise the most suitable treatment.
Which file formats do you accept?
We accept PDF, DXF, DWG, STEP/STP, STL, IGS/IGES and also PNG or JPG images. If you do not have a final drawing yet, send us a dimensioned sketch and we will review it all the same.
Do you make one-off parts or only production runs?
We handle one-off parts and prototypes as well as small, medium and large batches and repeat production. You can specify this in the quote request.
How quickly do you reply to an enquiry?
We send the technical response as soon as possible once we have the drawing and the part details.
Do you offer painting, zinc plating or other surface finishes?
You can include them in the order. These finishes are carried out with specialist workshops we work with regularly, but we handle the coordination and the transport: you place a single order and receive the finished part.
Can I combine several processes in one part?
Yes — that is the normal way we work. A part can go through laser cutting, bending, welding and finishing inside the same plant, under a single order and a single point of contact.
Request information or a quote
Send us the drawing and the part details and we will come back with a technical answer as soon as possible.
Reply as soon as possible