Hydraulic forging hammer is a energy-saving machine,it doesn't need boiler or air compressor. The total power of air-steam hammers is about 3 times than hydraulic forging hammers. We not only manufacturer new hydraulic forging hammers, but also we can rebuilt air-steam hammer into hydraulic forging hammer.
Power hammers are mechanical forging hammers that use a non-muscular power source to raise the hammer preparatory to striking, and accelerate it onto the work being hammered. Description from ebay.com. I searched for this on bing.com/images