Welded Frames & Structures
TIG and MIG welded steel frames, squared on a fixture and stress-relieved before machining.
Machine bases and frames welded, straightened and then machined flat - in that order, because a welded frame keeps moving for a day after the last pass. We check squareness diagonally on the frame itself, not on the drawing.
4–6 weeks
1 piece
ISO 9001:2015 · ISO 3834-2
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Squareness | ±0.5 | mm / m |
| Machined face flatness | 0.1 | mm |
| Material thickness | 3–25 | mm |
| Max frame | 3000 × 1500 × 1500 | mm |
| Weld standard | ISO 5817 level C | - |
| Heat relief | On request | - |
Available Materials
- Structural steel S355
- Mild steel S235
- Stainless 304
- Stainless 316L
- Aluminium 6082-T6
Typical Applications
- Machine bases
- Conveyor frames
- Test rigs
- Enclosure frames
- Pallet and cart structures
Surface Finishes
- Primed and painted
- Powder coat
- Hot-dip galvanising
- Shot blast SA 2.5
- As-welded
Industries Served
- Industrial Equipment
- Energy & Oil & Gas
- Rail
- Food Processing
- Automation
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
- Machined face flatness 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
- Material thickness at 3–25 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, Stainless Steel 304 / 304L, rates 4/10 on our machinability scale at 201 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 1 piece, 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
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Why machine the mounting faces after welding?
- Because welding pulls. A frame that measures square cold can move 1 mm once the welds cool and the stresses settle. Machining after stress relief is the only way the mounting pads end up coplanar.
- Can you supply weld maps and NDT?
- We can, and we normally mark critical welds on your drawing first. Full 100% NDT on a non-structural frame usually costs more than the frame itself, so we flag which seams actually carry load.
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 Chassis & Enclosures
EMI-shielded enclosures and instrument chassis, formed and welded to ±0.1 mm with gasket channels.