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7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book

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China HongKong Sudi Stationery Limited certification
China HongKong Sudi Stationery Limited certification
Very quick lead time for our urgent need, thank you for your help!

—— Gary Kisel

Reasonable price with high quality, appreciated your kind cooperation.

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Pleasant cooperation and hope we can have more bussiness in the future!

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7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book

7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book
7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book

Large Image :  7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book Get Best Price

Product Details:
Place of Origin: China
Brand Name: Sudi
Certification: ROHS , SGS , CPST
Model Number: 7/8'' 22.2mm
Payment & Shipping Terms:
Minimum Order Quantity: 500 pieces
Price: Please email to
Packaging Details: Export carton
Delivery Time: 15-30 days
Payment Terms: T/T, L/C, D/P, Western Union, MoneyGram
Supply Ability: 500,000 pieces per month
Detailed Product Description
Product Name: Book Binding Metal Spiral Dia. Of The Wire: 2mm
Finish: Electroplate / Plate Color: Black White Silver Gold Red Green
Binding Thickness: 18.2mm Length: Customized
Hole Distance: 4/1 Sample: Acceptable
High Light:

A4 Length Metal Spiral Binding Coils


5mm Pitch Metal Spiral Binding Coils


A4 Length Spiral Binding Coil

7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil for Text Book
Company Profile.pdf

7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book 0

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.



For more details, please send an email to WhatsAPP: 86-139-2581-4801, we are waiting for you in China.

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 bu

Inside Diameter Wire Diameter (mm) Max Thickness (mm) Pitch
1/4'' (6.4mm) 1.27 3.4 6
5/16'' (7.9mm) 1.27 4.9 6
3/8'' (9.5mm) 1.57 6.5 6
7/16'' (11.1mm) 1.57 8.1 6
1/2'' (12.7mm) 1.78 9.7 6
9/16'' (14.3mm) 1.78 11.3 6 or 8
5/8'' (15.9mm) 1.78 12.9 6 or 8
3/4'' (19.1mm) 1.91 15.1 6 or 8
7/8'' (22.2mm) 2.29 18.2 6 or 8
1'' (25.4mm) 2.29 20.4 6 or 8
1-1/8'' (28.6mm) 2.29 23.6 6 or 8
1-1/4'' (31.8mm) 2.29 25.8 6 or 8
1-3/8'' (34.9mm) 2.79 29.2 6 or 8
1-1/2'' (38.1mm) 2.79 32.1 6 or 8
1-3/4'' (44.5mm) 2.79 38 6 or 8
2'' (50.8mm) 2.79 42.8 6 or 8


1)Choose a Coil Size (Diameter)?

Now choose your coil size (diameter) for your document. You can use the coil bind capacity chart below to help choose the best size based on your stack thickness or your sheet capacity. Just note that the sheet capacity was calculated using sheets (not pages) that were all 20 lb. bond copy paper, without any covers; this means it can vary significantly depending on the stock you are using, which is why we recommend the stack thickness method instead. And remember: having a coil that is slightly too large is better than having a coil that is too small; a small coil won't allow pages to flip smoothly and can pinch them, tear more easily. So if you are between sizes, we recommend you size-up.


Take the pages and covers being bound and lay the stack flat on a table. 
If you want an alternative solution to choose the best size, you can utilize this general rule of thumb:

  1. Measure the thickness of the stack, but don’t press down; let it lay naturally loose.
  2. Add 1/8" to the stack thickness - that will be the size of the binding coil recommended for your document thickness.

7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book 1

2) Choose a Coil Pitch ?
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.
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 with specialized equipment for punching and for users who may have machines made in certain 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.

7/8'' 22.2mm 35 Ring A4 Length Metal Spiral Binding Coil For Text Book 2



3)If still not clear?


  • If you are still not sure how to choose the appropriate size, spacing and length, please contact us ( 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.

Advantages and disadvantages of spiral binding

We already know that coil binding is one of the most popular methods on the market in 2022. They are commonly used in brochures, reports, financial statements, manuals, calendars, cookbooks, children's books, marketing materials, and more. But why do they have the largest market share in the bookbinding industry? In this quick overview, we'll show you the pros and cons of this classic document binding spine solution.
DURABLE AND FLEXIBLE - The coils are made of nylon covered wire, which is very flexible and durable. This means they can bounce and bend and still return to their original shape. This makes them extremely durable and resistant to damage that could compromise the presentation and functionality.
EASY TO CLEAN AND SANITIZE - The nylon covered wire material can be easily cleaned and sanitized with any liquid cleaner of your choice. This nylon-coated thread can be easily air-dried and reused by newcomers without fear of the spread of bacteria and viruses. If you plan to clean and reuse your coil book, make sure you also protect your pages by laminating.
Page Turning 360° - Turning pages is more convenient because they can turn the sheets all the way so that they are placed back to back.
Affordable - Coil bound spines are very affordable for users of all budgets.
Available in a variety of lengths - can be cut to any length to match your product.
Rich Colors - In addition to a variety of colored coils, including black, white, clear, navy, blue, maroon, red and forest green, all can be customized.
Metal Spiral Coils, Color Type - Some users have a small number and plastic coils, such as double loops, are recommended.
Insertion Issues - Depending on the equipment available, inserting the coil can be a bit of a hassle for some users. Especially for thick books with large diameter coils, rolling the helix through all those holes can take some time and fiddling.
3 STEP PROCESS - Some bindings like wire and comb have 2 steps; simply punch and bind. However, there are 3 steps to the coil; punch the hole, insert the coil, and crimp the end.
There is no perfect registration - due to their helical design (and angular rotation), coils are not the best choice for projects that require tight registration on spreads, where the pages do not line up perfectly from one side to the other The other side.


Advantage :
1. Factory supply with competive price ;
2. Wide range of color choice ;
3. Pre-cutting service for free ;
4. Widely used in various kinds of booking binding ;
5. Fast delivery .

Why choose us?
1. Short production time:Our company have established the strong partner-ship with over 100 factories and We have our own factory.
2. Reasonable prices and High quality:Quality and prices are our focus because we know what you will care at most.
3. 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.
4. Free samples: Free samples availa
 tionship in China. ble at any time.
You can get competitive prices from us because we possess big manufacturing relationship in China.


Contact Details
HongKong Sudi Stationery Limited

Contact Person: Mr zhang

Tel: +86-17722306989

Send your inquiry directly to us