1-3/8'' 34.9mm 4:1 Pitch Office Supplies Metal Wire Binding Coils for Premium Notebooks

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Office Supplies Metal Wire Binding Coil

Spiral binding plastic coils are one of the most popular traditional binding methods available. They consist of a continuous spiraled coil that is made of durable and flexible plastic and is rolled into holes along a binding edge. Spiral binding coils offer a modern bookbinding alternative when compared to traditional plastic comb spines, while still being affordable and easy to use.

Another benefit of spiral binding coils over many other binding methods is that coil-bound books have the ability to flip pages completely around a full 360 degrees without damaging the contents, so they can lay flat and stay flat. This allows your book pages to flip all the way around from front to back for easy readability. The spines also bounce-back to their original shape, even after heavy use and bending.

Pros and Cons of Spiral Binding

1. Single Loop Metal Binding coil Spine has smooth and gorgeous surface,
2. most of printed company use it for hardcove book, notebook, calendar etc.
3. Glittering gold plating can make your book look beautiful.
4. We have ISO 9001 certificate...
5. We can make 100MM inner diameter to make the choice wider.

How do I choose a spiral coil?
We are a factory, you can contact me at any time to customize the binding coil that suits you, we provide a variety of binding coil sizes, if you are not sure about your size, not sure about the spacing? Here are the steps on how to choose the binding coil you need to buy.

1) Choose a Coil Size (Diameter)

If you want an alternative solution to choose the best size, you can utilize this general rule of thumb:

1. Take the pages and covers being bound and lay the stack flat on a table.
2. Measure the thickness of the stack, but don’t press down; let it lay naturally loose.
3. Add 1/8" to the stack thickness - that will be the size of the binding coil recommended for your document thickness.

2) Select the coil spacing

Spacing refers to the number of holes per inch or the spacing of holes. It's reflected in a ratio that includes the number of holes, a punctuation colon, and then an inch measurement. For example: 4:1. This ratio is read aloud/pronounced "four to one" and means 4 holes per 1 inch of length.

For example, in the United States, the standard pitch for helical coils is 4:1.

The 4:1 pitch bundled coil spine is by far the most popular, with approximately 98% of customers ordering the 4:1 pitch screw binder. 5:1 is a special pitch made primarily for print shops that have specialized equipment for punching patterns and users who may have machines made in other countries where 5:1 pitch is more common. Some more specialized machines will have other coil hole patterns such as 3:1, 2.5:1 or even 2.231mm. Before buying a screw binder, you'll want to check the compatibility of your screw binder, but keep in mind that most machines are 4:1.

3) Choose a Coil Color

Stock colors for most sizes and spacings include black, white, clear, royal blue, navy blue, red and silver. The colors are solid and uncoated, so they stay even with heavy use and scratching. Black coils are the most popular choice, with white and clear a close second. Maroons and navy blues are popular choices for professional agencies because they often match corporate branding. Red and royal blue are brighter and more vibrant than other colors and are therefore more common in schools and other organizations that require brighter coil bindings.

We also have a large selection of special order colors that can be used to make your spines. Below are some of the most popular more unique colors.

4) If still not clear?

If you are still not sure how to choose the appropriate size, spacing and length, please contact us (luo@sudidg.com WhatsAPP+86-17722306989)
We are a factory without middlemen, so you don't have to worry about the price. The quality can only be shipped after passing the strict inspection of the internal quality inspection department, and each of our products has passed the environmental protection certification, please rest assured to buy.

Why choose us?

• Factory supply with competive price ;
• Wide range of color choice ;
• Pre-cutting service for free ;
• Widely used in various kinds of booking binding ;
• Fast delivery .

• Short production time:Our company have established the strong partner-ship with over 100 factories and We have our own factory.
• Reasonable prices and High quality:Quality and prices are our focus because we know what you will care at most.
• Satisfactory after-sales service: Middle time production report with photos will be sent to you and also reconfirm accomplished date. We will establish close contact with you.Any problem you will get reply at the first time.
• Free samples: Free samples available at any time.

You can get competitive prices from us because we possess big manufacturing relationship in China.