Weighing in at a whopping total of 6,000 pounds, this 250 pound Moloch power hammer is piece of American history. Machines like this were what America was built upon.
Power hammers are measured by ram weight; in this case 250 pounds. The ram is the piece holding the top die that moves up and down on ways (guides) supported by the frame. It is driven by a “pitman” arm which is affixed, off center onto a weighted flywheel. The turning of the flywheel makes the pitman pull the ram up on the upstroke, and “throw” it on the downstroke, creating the movement of this machine. The ram is held in place by dovetailed gibs. The weighted flywheel is affixed to a shaft which is controlled by a drive pulley. The drive pulley is belt driven, by a motor. When the motor is turned on, the drive wheel is constantly spinning (idling).By stepping on the treadle, a turnbuckle shaft pushes a small mechanism to engage the clutch. In this case, the clutch is a conical wheel that sits inside of the drive wheel. When pressure is applied, the clutch engages into the drive wheel, creating motion of the main shaft and thus, the ram. By stepping down harder on the treadle, the conical wheel will be driven tighter onto the drive wheel, making the flywheel spin faster, translating to a harder and faster blow. By letting off of the treadle, the opposite happens, and a slower, more light blow is achieved. All mechanical hammers need some sort of cushion or release. In the case of this hammer, is has a large coil spring. Little Giant hammers have a very “snappy” blow to them. That is to say, that the die slaps the material as opposed to being forced down upon it. If you were to watch one of these hammers run in slow motion, you would see the entire linkage assembly extend and stretch on each hit-all the while compressing the large coil spring.
For all intensive purposes, this 250 pound Moloch is nearly the same in all regards to a 250 pound Little Giant hammer. This hammer is for sale. Interested persons, please email us at firstname.lastname@example.org
Reposted from @cergolforge
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