If the standard enclosure doesn’t fit, we machine one that does
Milling, drilling, tapping, engraving, full-colour printing, terminals fitted and wired — done to your drawing on tested Spelsberg enclosures. Start with a free sample, or send us a specification and we’ll price it.
- Free printed sample within 24 hours
- One-off to thousands
- Printed enclosures in about a week
What customising covers
TG series shown · not to scale

- 1Milled cut-out
- 2Drilled gland holes
- 3Printed legend
- 4Terminals fitted & wired
- 5Hinges & locks
- 6Special colour
The customising service
Eight things Spelsberg can change, and where each one happens
Everything starts from an enclosure that already exists and has already been tested. Some of it is done in Telford, some at the factory in Schalksmühle — which is the main thing that decides how quickly you get it.
Digital printing
TelfordFull-colour UV printing straight onto the enclosure — logos, legends, warnings, connection diagrams, QR codes, photographic images and gradients. Far harder-wearing than a label, because there is nothing to lift or rub off.
CNC machining
TelfordOpenings, holes and threads cut to your drawing on CNC-controlled milling centres. Because the machines are flexible rather than tooled, small quantities are worth doing — there is no batch you have to reach first.
Assembly & populating
TelfordThe bench work done before it ships: functional elements bonded in, assemblies installed, electrical components wired. Up to and including finalisation and switchgear production, tested before it leaves.
Prototypes & 3D development
SchalksmühlePrototypes built up in thin layers of light-curing plastic by the Polyjet process, in materials close enough to the real thing to be milled, impact-tested and metallised — so you can test the part, not just look at it.
Custom product development
SchalksmühleWhen nothing in 4,000 products is close enough, development starts with a three-dimensional CAD model built from your requirements. Modular tooling keeps a tailor-made enclosure far quicker and cheaper than it sounds.
Special colours & materials
SchalksmühleColour mixed into the moulding, or painted onto a standard catalogue enclosure — for circuit identification, for blending into an installation, or simply because it should be your colour and not grey.
Testing laboratory
SchalksmühleSpelsberg's own laboratory tests customised products, not only catalogue ones — ingress of dust and water, impact, heat and fire resistance, voltage and shock protection, cover tensile strength. Audited annually by VDE and UL.
Packing to your spec
SchalksmühleHow it arrives is part of the job. Covers and bases separated, loose packed for your line, boxed in your own cartons under your own labels, or split across several delivery addresses.
The easiest way to start
Have a free sample made, before you decide anything
You can hold it, fit it to the gear, show it to whoever signs things off, and check the finish in the light it will actually live in. There is no charge, no minimum, and no obligation to order afterwards.
- Send us your logo or artwork and we’ll print it on a real enclosure
- Or take a standard enclosure to check it against the gear before you commit
- Printed samples go out within 24 hours
- 24 hrs
- Turnaround on a free printed sample
- 1
- Minimum order on printing and machining
- ~1 week
- Typical lead time on printed enclosures
- 610 × 420
- Maximum print area, in millimetres
Get in touch
Send a specification for a quote
Tell us what needs making or changing and how many. An engineer in Telford reads it — not a form queue — and comes back with the detail and a price at your quantity.
Or skip the form
These are the people who quote and make the work. No call centre in between.
- CL+44 (0)7855 464066
Chris Lloyd
Technical Manager, Spelsberg UK
- CM+44 (0)7726 694015
Clare McCusker
External Technical Engineer, Spelsberg UK
- AS+44 (0)1952 605849
Amanda Shephard
Internal Technical Support, Spelsberg UK
Spelsberg els UK Ltd
Unit 1B, Queensway Business Park,
Hadley Park East, Telford,
Shropshire TF3 3BJ
Opening hours: Mon–Fri, 8:30–17:00
Before you get in touch