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PCE
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IPC Subgroup
B21J 7/22

for power hammers

Introduced: September 1968

Last revised: January 2006

Full Title

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

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Subclass:
FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES

5 direct subcodes

Child Classifications

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  • B21J 7/28 operated by hydraulic or liquid pressure
  • B21J 7/3 operated by electro-magnets
  • B21J 7/32 operated by rotary drive, e.g. electric motor
  • B21J 7/34 operating both the hammer and the anvil, so-called counter-tup