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23.6mm Thick Metal Coil Binding 42.8mm For Hardcover Books Calendars

Categories Metal Spiral Binding Coils
Brand Name: Sudi
Model Number: 6.4mmto 50.8mm
Certification: ROHS , SGS , CPST
Place of Origin: China
MOQ: 1500pcs
Price: Negotiable
Payment Terms: T/T, L/C, D/P, Western Union, MoneyGram
Supply Ability: 500,000 pieces per month
Delivery Time: 1-15 days
Packaging Details: Export carton
Product Name: Colored Metal Spiral Binding Coils
Binding Thickness: 23.6mm
Finish: Encapsulation
Color: black, white, red,yellow,green,blue,purple,gold,bronze, silver
Dimension: 3.4mmto42.8mm
use: Calendar, notebook, various books
Length: custom made
Hole Distance: 4/1 3/1 2/1 5/1
Wire diameter: Standard (customizable)
Binding way: by Single loop forming spiral&binding machine
inventory: 1000pcs
Number of turns: Can be cut into any number of teeth
material: Nylon covered wire
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    • Product Details
    • Company Profile

    23.6mm Thick Metal Coil Binding 42.8mm For Hardcover Books Calendars

    12 Size Colorful Metal Spiral Binding Coils for Hardcover Books, Notebooks, Calendars​


    Company Profile.pdf


    Spiral Coil Binding Supplies
    These spiral coils are used in conjunction with your binding system to create high-quality, durable documents. These spines allow your material to lay flat or fold back to back, perfect for taking notes and turning pages quickly. With more than 60 colors and sizes to choose from, as well as the choice of wire diameters, we can also produce super large 60-100mm sizes, which are environmentally friendly, durable and beautiful.

    Advantages 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. The metal spiral coil is rich in color, and the wire diameter can be customized according to your needs, making your book very unique.
    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.


    Inside DiameterWire Diameter (mm)Max Thickness (mm)Pitch
    1/4'' (6.4mm)1.273.46
    5/16'' (7.9mm)1.274.96
    3/8'' (9.5mm)1.576.56
    7/16'' (11.1mm)1.578.16
    1/2'' (12.7mm)1.789.76
    9/16'' (14.3mm)1.7811.36 or 8
    5/8'' (15.9mm)1.7812.96 or 8
    3/4'' (19.1mm)1.9115.16 or 8
    7/8'' (22.2mm)2.2918.26 or 8
    1'' (25.4mm)2.2920.46 or 8
    1-1/8'' (28.6mm)2.2923.66 or 8
    1-1/4'' (31.8mm)2.2925.86 or 8
    1-3/8'' (34.9mm)2.7929.26 or 8
    1-1/2'' (38.1mm)2.7932.16 or 8
    1-3/4'' (44.5mm)2.79386 or 8
    2'' (50.8mm)2.7942.86 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.


    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.


    Our company advantages:


    1. We are the largest wire manufacturer in Dongguan area.


    2. We have our own 10 sets of nylon coating machines, which can save the cost of raw materials because we produce nylon coating lines by ourselves.


    3. We have ISO 9001 certificate, all products have passed SGS test. Our customers from all over the world are impressed with our products.


    Our Contact Information:


    WhatsApp: 86-13925814801

    WeChat: 13925814801

    E:luo@sudidg.com

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