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PCE
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DIFF Subgroup
B23K 37/053

aligning cylindrical work; Clamping devices therefor

Introduced: January 1990

Full Title

Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass > for holding or positioning work > aligning cylindrical work; Clamping devices therefor

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

IPC defines codes here since 2025.

Child Classifications

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  • B23K 37/0531 Internal pipe alignment clamps since 2025 IPC+CPC Available in IPC and CPC
  • B23K 37/0533 External pipe alignment clamps since 2025 IPC+CPC Available in IPC and CPC
  • B23K 37/0535 Longitudinal pipe seam alignment clamps since 2025 IPC+CPC Available in IPC and CPC
  • B23K 37/0536 for maintaining flanges on tubes since 2025 IPC+CPC Available in IPC and CPC
  • B23K 37/0538 for rotating tubes, e.g. rollers since 2025 IPC+CPC Available in IPC and CPC