TD-31040 Airbag Tube Closing Machine | Inflator Housing Tube End Closing

Name: TD-31040 Airbag Tube Closing Machine | Inflator Housing Tube End Closing
Brand: TONG DA Precision Enterprise Co., Ltd
SKU: eOBpET6AX6YpkPO7
Availability: PreOrder

ID：TD-31040-airbag

Introduction

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TD-31040 closes the tube ends of automotive airbag components such as inflator housings and gas storage tubes. The tube end is spin-formed cold into a one-piece closed end, with no weld and no plug, and the wall thickens naturally at the closure. Range Ø10–40 mm, wall 0.8–2.0 mm; other sizes evaluated by sample.

Specification

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Tube OD

Ø10–40 mm

Wall thickness

0.8–2.0 mm; other sizes evaluated by sample

Materials

Carbon steel, stainless steel, aluminium

End form

Fully closed dome / centre hole

Detailed Information

What airbag tube parts require

Airbag inflators and gas storage tubes are automotive safety parts: the closure must be gas-tight, pressure-resistant and consistent from part to part. A welded end cap risks porosity and a heat-affected zone; a plug adds a joint. TD-31040 gradually spin-forms the tube end into a one-piece dome with no seam, and the wall thickens at the closure.

Tube range

Tube OD	Ø10–40 mm
Wall thickness	0.8–2.0 mm standard; other sizes evaluated by sample
Materials	Carbon steel, stainless steel, aluminium; good ductility required, seam welds must be sound
End form	Fully closed dome, or centre hole set by tooling

Why spin closing

One-piece end with no weld or plug joint
Cold forming with no heat-affected zone
PLC-controlled closing length and hole size for consistent production
Three stations working in turn, one operator

For an overview of closing methods for pressurized tubes, see How to close a tube that holds pressure.

FAQ

Does the closed end need welding afterwards?
No. The dome is formed in one piece. Leak and pressure testing follows your own specification; we can supply sample parts for testing.

Can a centre hole be left?
Yes, the hole size is set by the tooling.

How do I send samples?
Give tube OD × wall × material × length and a drawing of the closed end; we close samples and return them.

How do I request a quotation?
Email your drawing and requirements to sales@tdco.com.tw.

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