defined as the uniaxial tension until failure measured in pounds per square
inch (PSI). The higher the failure point the stiffer the wire, this is measured
on tensile testing machine. High quality stitching wire has a tensile range of
135,000 to 165,000 PSI. A tensile above 165,000 PSI will wear out parts in your
stitching head prematurely, causing maintenance costs and down time. High
tensile wire can also wear out the knives in a trimmer section prematurely. The
increased hardness of the stitching wire will nick a trimmer section’s knives
more severely when struck during saddle stitcher jams. A tensile below 135,000
PSI will cause the stitching wire to be soft and not properly form a proper stitch.
tensile stitching wires are available in the industry, but the cost benefits of
using a high tensile wire with a thinner diameter on thicker applications is
outweighed by the cost of premature wear on stitching heads and trimmer section
Commercially produced, stitching wire is not straight. Each spool size
has a desired curvature of the wire. The radial or circular curvature is known
as “Cast.” Cast is measured as the diameter of a free turn of wire. The axial
component is referred to as “Camber.” Camber is measured at the offset in the
ends of one turn of freely hanging wire. The larger the cast and the smaller
the camber are characteristics of a high quality wire. This allows the wire to
go into the stitching head smoother, producing less drag, and will provide fewer
dropped stitches. The stitching head will work more efficiently with less
energy and maintenance.
WCJ Pilgrim Wire has a large selection of Spiral Binding Wire. We stock sizes from .027" (.685 mm) all the way to .080" (2.03 mm). Mechanically binding is a great way to make your book, advertisement, handout, pop in front of you client or customer. Please contact WCJ Pilgrim Wire for a free Spiral Wire Pantone Book. Call us today at 414.291.9566 or contact us on our website at this link WCJ Pilgrim Wire Website.
WCJ Pilgrim Wire is in Dusseldorf Germany at the Drupa Trade Show, Hall 13 Booth D70. We offer the highest quality stitching wire products in the world. Buy a stitching machine at Drupa and WCJ Pilgrim Wire will give you 2 rolls of wire at no charge, come and stop by our booth. www.wcjwire.com
WCJ Pilgrim Wire will be showing our high quality stitching wire on a world stage at this years Drupa show in Dusseldorf German. We look forward to seeing everyone and introducing our newest wire division "WCJ Worldwide".