Precision Chassis & Enclosures
EMI-shielded enclosures and instrument chassis, formed and welded to ±0.1 mm with gasket channels.
Rack-mount chassis and instrument enclosures where the lid has to fit after three bends and a weld. We build the fixture around the first article, so parts 2 through 500 sit the same way.
3–5 weeks
5 pieces
ISO 9001:2015 · AS9100D
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Overall tolerance | ±0.1 | mm |
| Panel flatness | 0.2 | mm / 300 mm |
| Sheet thickness | 0.8–3.0 | mm |
| Weld seam | TIG, continuous | - |
| Hole position | ±0.05 | mm |
| Max size | 1200 × 800 × 300 | mm |
Available Materials
- Aluminium 5052
- Aluminium 6082-T6
- Stainless 304
- Mild steel CR4
- Galvanised steel DX51D
Typical Applications
- Rack-mount electronics enclosures
- Instrument housings
- RF shielded boxes
- Test equipment chassis
- Power supply housings
Surface Finishes
- Powder coat
- Anodise Type II / III
- Zinc plating
- Conversion coating (chromate-free)
- Silkscreen printing (outsourced)
Industries Served
- Telecom & 5G
- Semiconductor
- Industrial Equipment
- Defence
- Instrumentation
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Tolerance
- Overall tolerance at ±0.1 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
- Part size
- Sheet thickness at 0.8–3.0 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Material
- The first material listed, Aluminium 5052-H32, rates 7/10 on our machinability scale at 60 HB. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
- Order size
- Minimum order is 5 pieces, so on a first order setup and programming are spread over very few parts and they are most of the price. Repeat orders at the same quantity are cheaper without anything on the drawing changing.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- Bore gauges and an optical comparator for hole position and edge form
- First article inspection to AS9102, because this family carries an aerospace or automotive certificate
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Can you keep a 19-inch rack chassis square after welding?
- Tack first, then weld the seams in opposing order and let it cool between passes. If we run one long seam from corner to corner the panel pulls and the mounting ears stop lining up.
- Do you apply EMI gaskets?
- We cut and bond the channel if you supply the gasket material, usually conductive fabric over foam. The groove depth is part of the tooling drawing, so it gets machined with the panel.
Related part families
Sheet Metal Brackets
Laser cut and press-brake formed brackets, 0.5–6 mm, with rivet nuts and inserts fitted in-house.
Assembled Sub-Assemblies
Machined, plated, inspected and kitted as one part number, with the tolerance stack-up owned in one place.
Precision Milling Components
3, 4 and 5-axis milled components to ±0.005 mm, from one-off prototypes to 10,000-piece runs.