MyBinding Knowledge Base
What Pitch do I need for Wire Binding?
Twin loop wire has two different pitch options: 2:1 and 3:1. In the article conveniently titled: “What Does Pitch Mean?” we describe in full detail what pitch means. For a quick reminder: the pitch refers to the number of holes per inch. If you have a machine already, but don’t know what size it binds then count the number of holes. If it punches 21 holes--you need 2:1 wire. If it punches 32 holes--you need 3:1 wire. So, 3:1 means that for every inch there are 3 holes along the edge of your punched page. Since the holes of 3:1 are closer together, this limits how large the wire can effectively be. This size difference is our deciding factor for what pitch size to choose. Take a look at the size differences along with the number of pages supported:
3:1
Minimum Size: 3/16” (~10 pages)
Maximum Size: 9/16” (120 pages)
2:1
Minimum Size: ¼” (~15 pages)
Maximum Size: 1 ½” (300 pages)
As you can see, 2:1 wire has the most versatility in page count. However, the three to one pitch produces a more elegant look and feel that is preferred by many organizations. If you need to bind larger documents you will need to select a 2:1 pitch machine or you may want to consider a combination machine that does both pitches. Most organizations really only bind smaller documents and proposals and thus a 3:1 wire machine is a great choice. It will also provide a slightly stronger bind since it has more holes and more wire loops. The only limitation is the maximum document thickness.
Our Recommendation?
Go with a 3:1 pitch machine. It provides a more elegant look for smaller sized documents and a stronger bind. If you need to bind larger books then go with 2:1 because they can bind both small and large diameter wires. Or choose both and grab a 2 in 1 machine like the Wiremac Duo.
Key Points:
3:1
- Looks nicer.
- Holds a tad better.
- Size limitations (120 max pages).
2:1
- 300 max pages.
- Machines BIND 3:1 wire as well.
Recommended products and other links:
Akiles 2:1 Binding Machine: https://www.mybinding.com/akiles-wiremac-21-manual-combo-double-loop-wire-binding-machine.html
Twin Loop Wire: https://www.mybinding.com/binding/binding-supplies/twin-loop-wire.html
Prepunched Paper: https://www.mybinding.com/binding/binding-supplies/prepunched-paper.html
< Over the years, a number of customers have asked me whether they can use twin loop wire with their plastic comb binding machine. These customers often don’t want to have to buy a brand new machine but like the look and feel of twin loop wire binding. However, the answer to their question isn’t as simple as it seems. You see, they actually do make twin loop wire that is designed to work with the plastic comb binding hole pattern. With that said, if you want to use these wires you are going to need a way to close the wires. What is Spiral-O Wire? Let me explain a little bit more…There is a product that we carry called Spiral-O Wire. This wire has 19 loops and is designed to work with the hole pattern from a plastic comb binding machine. Spiral-O Wire is sometimes called Wire Combs or Ibico Wire and was originally designed for use with some of the older Ibico binding machines. A number of the older Ibico plastic comb binding machines also included a twin loop wire closer on the front of them to allow users to use both plastic combs and wire. This 19 loop wire was designed for this purpose. What Equipment is Needed? As the Ibico brand has been phased out by GBC and all of the older Ibico plastic binding machines have been replaced with new models, they no longer have the twin loop wire closer on the front of them. This presents a problem in trying to use these spiral-o wires since you can’t use the wires without a way to close them. One of the only options left is to purchase a Twin Loop wire closer. However, since twin loop wire closers are not incredibly cheap this option usually only appeals to users who have larger electric plastic comb binding machines. Otherwise, it is often advisable to simply buy a low end 3:1 pitch twin loop wire binding machine (the supplies are cheaper). This being said, if you have one of the older Ibico binding machines that has a wire closer included you are in luck. The Spiral-O binding supplies that we carry will work perfectly with your machine and you will be able to use both plastic combs and wire depending on your needs. These Spiral-O binding supplies are available in Black, Silver, White, Blue and Red and in sizes up to 1″ in diameter. If you aren’t sure what type of wire binding supplies that you need to work with your machine simply give us a call. Our trained sales representatives will be glad to help you find the correct supplies for use with your machine.(Read More)
