Custom Expanded Metals

Featured Product from Wallner Expac

Custom Expanded Metals-Image

Because we design and build our own expanders, we can tightly control the manufacturing process and fine tune all specifications. Our scalable manufacturing lines and responsiveness allow us to rapidly produce expanded metals with tunable parameters to meet your specifications. All of our expanded metals are manufactured to order- to your specs, so you're never limited to "stock on hand".

LWD

“Long Way of Diamond/Design” dimension

SWD

“Short Way of Diamond/Design” dimension

LWO

“Long Way of Opening” dimension; used to indicate clear opening in the long direction

SWO

“Short Way of Opening” dimension; used to indicate clear opening in the short direction

STRAND THICKNESS

Equal to the thickness of the sheet metal being used

STRAND WIDTH

The amount of metal fed under the dies to produce one strand

BOND SHEARED

Where two strands intersect; eliminates prongs or jagged edges

BOND WIDTH

The width of two intersecting strands

RANDOM SHEAR

This type of shearing leaves prongs or jagged edges

CAMBER

The maximum distance between the edge of the expanded metal and the straight edge is the camber.

Bowing in sheet or coil is measured by placing a straight edge along the concave side of the metal, parallel to the LWD, touching both ends of the sheet.