The mechanical “universal” ironworkers of yesteryear performed two basic functions—punching holes and shearing bars.
“HMI, with the application of hydraulic power and combining a “C” frame press with a large platen has increased the potential for the ironworker,” said a company spokesman.
HMI ironworkers have from 6” to 11” of stroke depending on the model. Limit switches can be set to use the minimum amount of stroke for a particular operation. The ram is easily adjusted for tooling heights. Stroke length is easily controlled to within .001”.
HMI ironworker presses will accept a large variety of tooling such as press brake tooling, tube and pipe notchers, rod and channel shears, punch multiple holes in one stroke with unitized tooling such as made by Unitool and Unipunch, “V” notching tooling, two and four post die sets, horn type die holders for punching round, square and rectangular tubing, flattening, coining, pressing in bearings and bushings, tubing cutoff shears, forming dies, die holders for punching beams and channels. Use as a shop “H” frame press, bending pipe and tubing.
HMI ironworker presses have full power all through the stroke. Because of this, shear can be put on some tooling to decrease punching tonnage by as much as 70%, according to the spokesman.
HMI ironworkers are available with presses from 42 to 200 tons. Shear bars are available in three lengths: 20”, 25” and 31”.
All HMI ironworkers have two cylinders and two control valves. The press and shear bar may be operated simultaneously and independently, providing safety for two operators. “Today’s HMI ironworker is the most versatile universal ironworker,” said the spokesman.
For more information contact:
Hydraulic Machines Inc. (HMI)
PO Box 849
Columbus, NE 68602