A long steel tube with expanded sections – drawn straight, then regions expanded with an internal tool to create sockets. The expanded sockets let a second tube or fitting insert without a coupling, halving the joint count in your assembly.
Function and Design
The long tube is judged by the dimension nobody checks until a failure – fit, seal or concentricity. That is why the long tube is inspected between operations, not only at the end.
Design Highlights
- Made to your drawing – this listing shows the family range.
- Verified first article, sampled production: the second long tube batch matches the first.
- Repeat volumes are priced with in-house tooling and press capacity in mind.
- Material: We hold carbon steel (SPCC / DC01 or to print) for long tube production; special grades are sourced to the drawing when volumes justify.
- Process: deep drawing with in-die trim and pierce on the final station for the long tube.
- Finish: No catalogue finish: the long tube surface is agreed on the drawing and confirmed at sample approval.
- Size: Overall size to customer drawing.
- Custom: OEM/ODM long tube work – first articles verified before production starts.
Where It Is Used
Production volumes of this part run in electrical enclosures and junction boxes, automotive sensor and motor housings, lighting reflectors and covers.
Why Source It From Aunov
We draw in house on maintained presses and inspect first articles on the CMM. Batch records are filed against your part number and kept for repeat orders.
OEM pricing and free long tube samples on request, with manufacturability checked first.