When stabilizer bars and torsion bars move to hollow tube, the tube ends must be closed to keep water and dirt out. TD-31050 cold-spins the tube end into a dome that is one piece with the tube, with no weld seam.
![]() Stabilizer bar tube end closing | ![]() Stabilizer bar end before and after closing | ![]() Steel tubes with dome ends |
For a fixed dome shape within Ø50 in high volume, choose TD-31050. For flats, holes, multi-step shapes, larger diameters or heavier walls, choose the TD-382 NC servo closing machine (servo X/Y axes, dome radius set freely).
Can you trial-close my samples?
Yes. Send tube OD, wall, material and the end drawing to sales@tdco.com.tw.
Do you also offer contract closing?
Yes. TONG DA has built tube machines since 1989 and runs contract processing on its own machines.