How Does the WinSet Punch Press Work?

. a simple concept that uses mass and tool speed to produce high tonnage.

The WinSet Electromagnetic Punch Press (impact press) consists of one or more patented magnetic accelerators that are connected, via push rods, to the movable tool holder plate on a precision dieset. The patented microprocessor control precisely energizes the accelerators causing the tooling to be rapidly accelerated toward the die holding base plate.

The control, by adjusting the energy "on time", regulates the tool speed, disconnecting the driving forces just before the tool impacts the work. The kinetic energy or momentum of the moving tool holder is converted to work as the tooling impacts the material being processed.

Finally, any unused energy is absorbed by the urethane stops and the tool plate is returned, aided by spring force, to the initial position.

Want to Know Tonnage?

How do we translate the energy output of high-velocity impact presses into tonnage and energy ratings found on mechanical presses?
Use the basic energy statement:
ENERGY = FORCE x DISTANCE

So, tonnage for a 0.3-inch-ton impact press is 9.4 tons for 0.032-inch material and 30 tons for 0.010-inch material.

An impact press weighing 100 pounds and using only one moving part, can outperform a 10-ton mechanical press when the material is less than 0.020 inch thick.

Shear Strength

Shear Strength Estimates
Material type

Estimated shear strength

Rubber, Teflon, cloth, green state ceramics
5,000 psi
HDPE, polypropylene, PVC, Rigid PVC, Nylon, polyethylene, polyurethane
10,000 psi
Soft aluminum, FR-4, G-10, fibreglass, Kapton, Mylar
18-25 kpsi
Soft brass, soft copper, bronze, phosphor bronze
40-80 kpsi
Soft steel, cold rolled steel (1015 & 1041), silicon steel, full-hard brass, full-hard copper, full-hard bronze, hard aluminum (anodized and alloys)
60-80 kpsi
Hard steel, soft stainless steel
80-100 kpsi
Hard stainless steel, Inconel, Titanium
100-150 kpsi
High-chrome steel, hot rolled steel, nickel alloys, Hasteloy X, hardened Inconel
110-150 kpsi

Calculations: Tonnage vs. Energy

Tonnage = (shear strength x thickness x linear cut) ÷ 2,000
Energy (inch tons) = Tonnage x Thickness
Inch Tons
x 1.5 (safety factor) = Estimated energy requirements (See capacities below)

 

Estimated Capacities

Model LS01P up to 0.3 inch tons max
Model LS02P up to 0.6 inch tons max
Model LS03P up to 0.9 inch tons max

Note 1:
Upper tool weight, including die shoe, tool holder, punches, stripper plate and stripper spring force, affect the energy requirements and must be compensated for in our calculations. As an allowance for these items, multiply the total energy calculation (inch tons) by 1.5, providing a 50% safety factor. The result (total number of inch tons) must be below the maximum inch- ton rating shown in Estimated Capacities for the press model being considered.