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Counterblow Hammers 0

Heavy counterblow hammers for efficient forging
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  1. Definition: Counterblow Hammers
  2. Counterblow hammers in industry
  3. History and background of this machine tool
  4. Areas of application of a counterblow hammer
  5. Suppliers of counterblow hammers

Forging with a counterblow hammer is a massive forming process in which both rams are moved synchronously against each other at high pressure. This results in high energies and speeds. The drive can be hydraulic - usually in the medium power range - or pneumatic. With forming energy of up to 1,400 kJ, it is possible to produce large forgings for aircraft, ship and vehicle construction accurately and cost-effectively. And due to their longevity, the robust forging hammers are in demand even as used. Surplex auctions used counterblow hammers directly from a location in Europe, offering forging hammers and other forging machines.

The counterblow hammer is mainly used in the metalworking industry to undertake the operational steps required for drop forging and hammer forging of large workpieces. It differs from other types of hammers because the anvil block is not rigidly stored. The counterblow hammer consists of a frame, guide, anvil block, ram and controls. It moves up under the ram, while the other one moves from the top to the bottom. Both movements are linked to each other and can either be mechanic or hydraulic. The mass of the lower ram is bigger than the upper ram. In order to ensure that the weight remains steady, the upper ram moves significantly faster. This machine tool has a very large working capacity.

It is necessary to have efficient operations when constantly manufacturing large forged components. The forging press is no longer an economical machine to use for the processing of these large workpieces.

  • Used in the metalworking industry
  • Undertakes a variety of processes including drop forging and hammer forging
  • Maximum forming energy can reach 1400 kJ
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This is how the counterblow hammer came about and it helped continue the tendency to have bigger and heavier forged products. Locomotives, container ships and commercial vehicles are largely made out of big forged workpieces. Counterblow hammers have also been introduced into modern technologies. This makes it possible to build efficient forging lines. These machine tools are flexible in their implementation and therefore provide an optimal, safe investment for the future.

The biggest counterblow hammer in the world can exert a forming energy of up to 1400 kJ. This is equivalent to a forming press that can exert pressure of up to 54,000 tonnes.

DIGEP Counterblow hammer in use

Very long and protruding castings can be processed with a counterblow hammer. This allows for the manufacturing of very large axes and long crankshafts for commercial vehicles. Thin-walled turbine blades can be efficiently manufactured using a counterblow hammer. Modern controlling technology allows for the adjustment of the amount of energy per blow, number of blows per minute and the rate of interval times.

Brand names and manufacturers of counterblow hammers include