Wednesday, February 22, 2012  
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Custom Machine Shop Services  Custom Machine Shop Services  

 Since 1964 Pre-Pack Machinery has provided quality made, custom parts to a wide range of industries including packaging, fresh-cut produce food processing, and many other commercial fields.

Our team of professional machinists and fabricators will meet or exceed your specifications in any variety of materials, from plastics to metals, including alloys that are typically difficult to machine.

Shearing

Shearing, on a conventional straight shears, makes straight cuts in material of limited thickness using a scissors-like action, and offers a low cost way to make cuts of limited shapes. In straight shearing, shapes are mainly limited to convex polygons (e.g. rectangles, octagons, etc.)

Example uses of conventional shearing include preparation of sheet metal for other processes, rectangular signs, triangle signs, octagon signs, etc. Shearing can be applied to most metals, plastics, composites, fibers and other rigid materials. Soft materials can pose difficulties.  

10' Shearing machine used by Pre-Pack Machinery in Champaign, Illinois

Plasma Cutting

Plasma CuttingPlasma cutting is a process that is used to cut steel and other metals of different thicknesses (or sometimes other materials) using a plasma torch. In this process, an inert gas (in some units, compressed air) is blown at high speed out of a nozzle; at the same time an electrical arc is formed through that gas from the nozzle to the surface being cut, turning some of that gas to plasma. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut.


 

 

Bending