Chicago Dreis & Krump Hydraulic Press Brake machines and Edwards Shop Press with Brake Tooling.
metal, Press Brake machines normally use a wedge shaped upper die that
force the metal down into the V shaped lower die to bend metal to conform
with the tooling.
Bending is when the upper die (punch) pushes the metal down into
the bottom die without bottoming the metal into the bottom die. When
the punch is raised, the metal retracts a little from the air bend position.
The amount of the retraction is the spring-back. The amount of spring
back depends on the type of metal, the thickness, grain direction and
hardness. You should expect less than 5 degrees of spring back unless
you are bending a hard metal like stainless steel. Expect the inner
bend radius to be slightly greater than the radius of the punch. Air
bending is the method normally when calculating the tonnage required.
Click for our Press Brake Tonnage Chart
to estimate the size machine you need.
Chicago Dries & Krump brake presses use American style tooling and come with a simple 2-Axis CNC controlled back gage and ram die depth control with a 16 bend memory to easily form your simple or complex parts jobs again and again. 99 jobs can be saved in memory. To program the memory you simply make your first part manually and save the ram depth and back gauge positions in the CNC memory. Whenever you make the same part again the machine knows what to do. You just have to position the metal against the back gauge. Metal forming can also be done in a manual mode for single parts.
Click if you are looking for an electric-hydraulic power leaf brake machine to fold your metal.
NOTE: Safety devices such as Light Curtains are strongly recommended to prevent fingers and hands from getting crushed especially for predictable repeat uses. Safety compliance is the users responsibility. Please take it seriously. *** Click for our Machinery Safety webpage ***.
Click for chart of tensile strengths for aluminum and stainless steel to compare with mild steel Click for a Bend Radius Chart for aluminum and stainless steel
Click for Power Hydraulic Leaf Brake machines
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