Facilities handling precision electronics and antenna assemblies ask about filtration before they ask about size. That is the right order: the part here is small and the requirement large.
A radar component finishing booth is sized by the batch and judged by defence-sector acceptance — two separate things.
Size follows the batch, not the part
Components are processed in counts rather than one at a time, so design starts from parts per cycle and how they are hung, and internal size is derived from that.
The published range starts at 3000 mm long, below vehicle size — and usable volume is set by racking and row spacing rather than by dimensions alone.
| Input | Effect |
|---|---|
| Parts per cycle | Internal size and usable volume |
| Largest component dimensions | Minimum length and height |
| Racking method | Row spacing and air reach |
| Coating material | Heat curve, filter class and controlled environment |
| Your authority’s acceptance requirements | Filtration level and documentation |
Why filter class rises as the part shrinks
A small surface is less forgiving, not more: any trapped particle shows clearly on a precise part. Acceptance in this sector is measured by repeating a result and documenting it rather than by peak specification.
Published filtration starts with stop, pre and ceiling stages at EU3, EU4 and EU5, extending to three-stage bag and high-efficiency filtration at ≥98% where the work requires it.
Controlled environment where the material calls for it
Coatings in this class are sometimes applied inside an operating window their supplier defines. Temperature and humidity control together is delivered on custom builds, with the range set per project from the finishing material and the part’s requirements.
Qualification precedes specification
Security, confidentiality and qualification requirements govern who supplies and how work is documented, and they are settled before chamber dimensions and air capacity are discussed. We start from what the authority requires, because the reverse order produces a procedurally unacceptable offer.
Frequently asked questions
What do you supply to the defence sector?
What we actually supply to this sector is paint booths, built to size around the part or the system. We do not list other equipment because it is unconfirmed.
Is three-stage filtration mandatory here?
Not by size but by coating material and your facility’s acceptance requirements. It sits within the delivered range and is decided with the rest of the configuration.
Can you issue a specification for a tender document?
Yes. We issue written technical specifications with the required conformity data so they can be inserted directly into a competition or contract without redrafting.
Can humidity be held in a chamber this size?
Yes, on custom builds and where the material or acceptance requirements call for it. The range is set per project and not published as a general figure because it changes with the material.
Related reading
What to do next
Send parts per cycle, the largest component dimensions and your authority’s qualification requirements, and we will return a specification built on them. talk to a specialist. Sector detail is on the military and defence industry page.