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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B21J 7/22

for power hammers

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Hammers; Forging machines with hammers or die jaws acting by impact > Drives for hammers; Transmission means therefor > for power hammers

CPC:

Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H) > Drives for hammers; Transmission means therefor > for power hammers

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

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B21J 7/28 operated by hydraulic or liquid pressure IPC+CPC Available in IPC and CPC
  • B21J 7/30 operated by electro-magnets IPC+CPC Available in IPC and CPC
  • B21J 7/32 operated by rotary drive, e.g. by electric motor IPC+CPC Available in IPC and CPC
  • B21J 7/34 operating both the hammer and the anvil, so-called counter-tup IPC+CPC Available in IPC and CPC