Miruna Wire

High-quality, reliable, and stress-free stitching wire 

About Miruna
Stitching Wire

Miruna stitching wires provide high performance production, reliable stitches, and reduce waste

With varying diameters and finishes, Miruna wires allow you to customize the fit of your stitch and protect against oxidation

Miruna is one of the few wire manufacturers that don’t add lead to their wiring; this means the lead within your wire will be both eco-friendly and health-conscious

Each wire is compatible with all stitching machines and have honored the Miruna reputation for producing premium wire since 1951. 

Miruna Stitching Wire Advantages

At Miruna Wire USA, we pride ourselves on being the largest Miruna stitching wire distributors in the United States. Our variety of premier stitching wire guarantees the size, cast, and tensile to perfectly fit your stitching needs.

  • Closely monitored production from raw material to spook winding
  • Consistent suppliers. No “low bid” raw material used
  • Low carbon, heat treated steel making stitching wire less brittle and more formable
  • High-quality coating, results in very little flaking through stitch heads
  • Round and flag wires are supplied in plastic spools of 5, 8.5, 44, and 70 lbs each
  • Wire spools are packed in cardboard boxes for easy handling and storage

Additional Resources

Stitching Wire Spool

Stitching Wire Common Uses

Stitching wire is a low carbon steel with a zinc galvanized or tin coating commonly used in the bindery and commercial printing industries. Stitching wire is used in side stitching, saddle stitching, corner stitching, booklet making, and inline stitching in press applications.

Tips and Tricks for Your Stitching Job

By Keith Voigt // July 30, 2020

A chrome finish stitching wire made of galvanized metal wire is often coated with a friction-reducing additive that ensures no flaking or peeling for a seamless binding. This additive also helps yield a properly forming wire that can be bent into the ‘staple’ shape. Some machines can’t handle all types of wire, so be certain to make sure you are using the correct type wire for your precipice stitcher. If unsure, check your machine user manual or contact a tech team so they can help you find your compatible wires.

Tensile refers to the pull required to break the wire from the spool. Tensile is measured in PSI (pounds per square inch), and is a good indicator of the quality of the wire. High-quality wire generally has a higher tensile but stays within the range of 130,000-165,000 PSI. Below this range and the wire may be too soft and not properly formed into a stitch. Above this range and the wire may damage your machine or snap when forming to the ‘staple’. 

Helix refers to the curve of the wire as it is unwound from the spool. A curve is often caused by the round-shaped spool the wire has been wrapped around, this is the Cast. The Camber is the axial component of the helix and is measured at the ends of the free-handing wire. The importance of these components is that the ratio between the camber and cast should be a large cast and small camber. This ratio will lead to a smoother running stitching machine. 

Finally, the path of your stitching wire is crucial. An incorrect path could lead to catching and chipping of your wire as well as a prematurely worn out blade along with other parts of your stitcher. To ensure a clean path, make sure there are no flat spots on your guides and that your felt pad wiping system is clean. 

*Disclaimer: All Miruna Wire products are sold by the case; individual spools are unavailable for purchase at this time.