![]() The wider the valves are opened, the more air is allowed to move to the ram side, creating more forging force/pressure. When the valves are opened by more pressure on the foot treadle, it allows for increased air to move from the compressor to the ram side of the hammer. There are two valves, an upper and lower that operate together. The compressor piston has two compression rings and steel wipers on the lower section of the compressor to help keep air from leaking. When the piston is on the downstroke, it creates air pressure that when the valves are opened, moves air into the bottom section of the ram, driving the ram up. When the piston is going up, it creates air pressure that when the valves are opened, forces air into the top of the ram section of the hammer driving the ram down. The connecting rod is attached to a compressor piston. At the opposite end of the flywheel, there is a "throw" that has a connecting rod attached. The flywheel is attached to a crankshaft that is set on large tapered roller bearings in a crankcase that is filled with grease. The motor drives a flywheel with V belts that are external to the hammer. You can find many of these hammers still in operation. If you look at the old Massey, Nazel, Chambersburg, and Beche hammers, they were all cast iron. ![]() It will not warp or deflect like some steel plate fabricated hammers can do overtime. With a cast frame, you can put the strength and mass exactly where you need them. Cast frames are more expensive and typically are much heavier. There are several reasons why cast frames have been used for power hammers. ![]() There are basically six components to the power hammer: The operating principles of a self-contained Anyang power hammer are very simple. Operating Principles of an Anyang Pneumatic Forging Hammers This design provides for decades of trouble-free forging. The crankshaft of Anyang pneumatic forging hammer has large tapered roller bearings set in a case filled with grease. The drive belts are external to the machine for easy adjustment and away from harmful oil. There are no internal rubber air hoses to deteriorate over time. The internal parts of Anyang pneumatic forging hammer are forged steel and precision machined. Cast iron is more expensive to manufacture compared to fabricated hammers but they are heavier, do not flex over time. The frames are cast iron, like the old Nazel, Buche, and Massey hammers. The Anyang pneumatic forging hammers are engineered to run for decades in harsh factory environments. With a self-contained hammer, you have tremendous forging power (a combination of ram weight, downward air force, and velocity) plus precise control. You can forge heavy stock and immediately switch to thin light stock with no adjustments. With a self-contained power hammer, you require no external air supply or high-pressure hoses. The design is based on the time-proved designs of the old European hammers many of which are still in use today. It is also used for open-type close forging with bolster dies.Īnyang pneumatic forging hammers are self-contained pneumatic power hammers. Anyang pneumatic forging hammer from 150kg to 2000kg is widely used in industrial open die forging.C41 series pneumatic hammer is widely used for general open die forging works, such as drawing-out, upsetting, punching, chiseling, forging welding, bending, and twisting.
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