Tube End Closing Service (Taiwan) | Spin-Closed Dome, Flat or Holed Ends on Steel, Stainless, Aluminium and Copper Tube
Tube end closing as a service
Steel, stainless, aluminium and copper tube ends closed on TONG DA's own closing machines in Taiwan: cold spin closing in one piece, with no welding, no plug and no heat. Useful for samples, small lots, or when your own capacity is short.
| End form | Machine |
|---|---|
| Dome end, radius adjustable | TD-31040, TD-31050 |
| Flat end | TD-21025 |
| Center hole for drainage, venting or fittings | Same machines, hole size adjustable |
| Programmable dome, flat or hole; large or thick-wall tube | TD-382 NC servo closing machine |
Typical parts: furniture and outdoor chair tubes, stroller frames, gas spring and shock absorber cylinders, heat pipe and heat exchanger tubes, hollow stabilizer bars, medical and mobility aid tubes.
 Gas spring cylinder closing |  Aluminium tube end closing |  Spin-closed vs welded end |
For in-house production, see the TD-31040 closing machine.
Why TONG DA
- We design and build our own tube machines, so tooling for a special part is adjusted in-house.
- Cutting, reducing, grooving and closing in one plant, without shipping parts between subcontractors.
- Samples first, then production.
What to send for a quotation
Drawing or sample, material, tube OD × wall × length, and quantity, to sales@tdco.com.tw. TONG DA Precision Enterprise Co., Ltd., Annan District, Tainan, Taiwan, since 1989.
Other processes: tube end reducing · roll grooving and beading · tube cutting · all contract tube processing
