7/8'' 22.2mm 4:1 Pitch Spiral Coil Binding Supplies for Premium Textbooks

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Office Supplies Metal Wire Binding Coil

Coil binding is a simple binding process that is used for a variety of different types of documents. It is not unusual for formal presentations and proposals to be constructed using a coil binding. This form of binding is also a popular option for cookbooks and instruction manuals. Printed materials that are joined using coil binding do not have a proper spine, as with books and other documents that are bound using other methods. However, coil binding does allow the document to lay perfectly flat when open.

There are a number of different names for the process of coil binding. Many booklets make use of what is known as spiral binding. These examples of coil binding make use of thin metal coils that are ran through a series of perforations along the top or left side of the document. The coils may be simple exposed metal types or the metal may be coated with a protective plastic cover that is available in many different colors.

• Single Loop Metal Binding coil Spine has smooth and gorgeous surface,
• most of printed company use it for hardcove book, notebook, calendar etc.
• It can make your book looks very nice.
• We have ISO 9001 certificate...

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.

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.
  

Factory exterior：

HongKong Sudi Stationery Limited, established on 20 13, is a professional manufacturer of nylon double-coated wires, PVC plastic spirals, metal single spirals, calendar hangers, binding machines, punching machines and various spiral forming machines.

We have well-equipped testing facilities and strong technical force. Our double wire adopts imported nylon covered wire. All our binding materials have passed strict SGS testing and CE certified binding machines, which meet the standards of the European and American markets. At the same time, we are the supplier of LEO PAPER GROUP, the largest printing company in Asia. After years of sales, our products have won a high reputation and wide recognition at home and abroad.

Our products have a wide variety, high quality, reasonable price, beautiful design, and are widely used in printing and other industries.

Our products are widely recognized and trusted by users, and can meet the ever-changing economic and social needs.

We welcome new and old customers from all walks of life to contact us for future business relations and mutual success!

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Workshop interior：

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