Send Message

China Spiral Binding Coil Manufacturer

Various types of text booklet calendars, spiral binding coils   

About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsMetal Spiral Binding Coils

4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks

I'm Online Chat Now
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.

—— Yin Pichesda

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

—— Prateek Keshari

4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks

4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks
4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks

Large Image :  4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks Get Best Price

Product Details:
Place of Origin: China
Brand Name: Sudi
Certification: ROHS , SGS , CPST
Model Number: 22.2mm
Payment & Shipping Terms:
Minimum Order Quantity: 1500pcs
Price: Negotiable
Packaging Details: Export carton
Delivery Time: 1-15 days
Payment Terms: T/T, L/C, D/P, Western Union, MoneyGram
Supply Ability: 500,000 pieces per month
Detailed Product Description
Features: Calendar, Notebook, Various Books Product Name: Office Supplies Metal Wire Binding Coil
Binding Thickness: 18.2mm Material: Plating
Color: Black, White, Red,yellow,green,blue,purple,gold,bronze, Silver Dimension: 22.2mm
Use: Books, Calendars, Notebooks, Summaries, Etc. Length: Custom Made
Hole Distance: 4/1 Wire Diameter: 1.5MM Wire Diameter Can Be Customized
Inventory: 1000pcs Number Of Turns: Can Be Cut Into Any Number Of Teeth
Size: 6.4-100mm Any Customization
High Light:

4:1 Pitch Spiral Coil Binding Supplies


22.2mm Spiral Coil Binding Supplies


22.2mm Spiral Binding Supplies

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

   Company Profile.pdf

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.

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.

4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks 0


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.

4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks 1


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.

4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks 2


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.

 4:1 Pitch 22.2mm Spiral Coil Binding Supplies For Premium Textbooks 3

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.

Contact Details
HongKong Sudi Stationery Limited

Contact Person: Mr zhang

Tel: +86-17722306989

Send your inquiry directly to us