Colored PET 6mm Plastic Spiral Binding Coils 1/4 Inch For Children'S Books Notebooks

Colored PET 6mm Plastic Spiral Binding Coils 1/4 Inch For Children'S Books Notebooks

Product Details:

Place of Origin: China
Brand Name: SUDI
Certification: ROHS , SGS , CPST
Model Number: 6.4mmto 50.8mm

Payment & Shipping Terms:

Minimum Order Quantity: 5000 pieces
Price: Negotiable
Packaging Details: Export carton
Delivery Time: 5-15 days
Payment Terms: T/T, L/C, D/P, Western Union, MoneyGram
Supply Ability: 500,000 pieces per month
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Detail Information

Product Name: Spiral Plastic Coil Size Range: 6mm-50mm
Colour: Any Color Can Be Customized Pitch: 2:1 3:1 4:1 5:1
Length: Custom Cut Wire Diameter: Standard Wire Diameter (can Be Bold And Customized)
Material: PET Or PVC
High Light:

6mm Plastic Spiral Binding Coils


Notebooks Plastic Spiral Binding Coils


1/4 Inch Plastic Coil Binding

Product Description

Colored PET/PVC Spiral Plastic Binding Coils for Children's Books, Notebooks, etc.​


Company Profile.pdf





What is PET plastic spiral coil binding? PET plastic is a non-degradable and environmentally friendly material, reaching food grade, our products have passed the SGS test and are halogen-free. PET spiral binding coils are fast becoming the most popular binding choice;

PET plastic spiral coils are known for their durability. PET plastic spirals are very flexible for book binding due to their smooth appearance and are able to make the pages turn themselves over without causing any damage. As an eco-friendly material, it complies with the global green conservation movement and is ideal for children's books, notebooks, recipes and instruction manuals, etc.;

Pantone colors are available, we also support the sample colors you want.

Length: We accept custom length.

Thickness: The choice of coil size depends on the thickness of the book.


Colored PET 6mm Plastic Spiral Binding Coils 1/4 Inch For Children'S Books Notebooks 0



Spiral Binding Coils sizes Guide:


This is everything you need to know about spiral coil. First, there are sizes ranging from a 6mm diameter all the way to 50mm. The smallest size can hold up to 30 pages and the largest can hold up to 440. you can measure the thickness of the book and chose the size you need.


Pitch Coil Diameter

Max Thickness of

document including covers

Sheet Capacity
6mm 1/4" 4mm-5/32" 30
7mm 9/32" 5mm-3/16" 42
8mm 5/16" 6mm-7/32" 54
9mm 11/32" 7mm-1/4" 65
10mm 3/8" 8mm-5/16" 75
11mm 7/16" 9mm-11/32" 85
12mm 15/32" 10mm-3/8" 92
13mm 1/2" 11mm-13/32" 105
14mm 9/16" 12mm-7/16" 115
15mm 19/32" 13mm-1/2" 125
16mm 5/8" 14mm-17/32" 135
17mm 21/32" 15mm-9/16" 142
18mm 11/16" 16mm-5/8" 155
19mm 23/32" 17mm-11/16" 160
20mm 3/4" 18mm-23/32" 172
22mm 7/8" 20mm-3/4" 190
23mm 15/16" 21mm-27/32" 200
25mm 1" 22mm-7/8" 220
28mm 1-1/8" 25mm-1" 250
30mm 1-3/16" 27mm-1 1/16" 270
32mm 1-1/4" 29mm-1 1/8" 280
35mm 1-3/8" 32mm-1-1/4" 310
38mm 1-1/2" 34mm-1-5/16" 330
42mm 1-11/16" 38mm-1 1/2" 350
45mm 1-3/4" 41mm-1 5/8" 390
50mm 2" 46mm-1 13/16 440



Product Details:


1);Accept any packaging requested by customers.


2); Standard spacing: 6mm, 6.35mm(4:1) & 8.47mm (3:1), the wire diameter can be customized according to customer requirements.


3); There are two incision methods: flat cutting and bevel cutting. The bevel cutting is fast for binding, but you need to bend it inside to ensure safety. The flat cutting will be slightly slower when binding, and it can be cut and bent after binding.


4); PET material reaches food grade, the color is brighter and more transparent than PVC, it is a non-degradable material, it has a faint aroma when burning, but its softness is not as good as PVC.


5);Any color is available, OEM color is accepted.



How to choose the correct size plastic spiral coil for your book?



1). 5:1 pitch; A4 size is 58 or 59 loops; 2). 4:1 pitch; A4 size is 48 or 49 loops;


3). 3:1 pitch; A4 size is 35 or 38 loops; 4). 2:1 pitch; 21 or 23 loops in A4 size;



Pitch reference diagram:


Colored PET 6mm Plastic Spiral Binding Coils 1/4 Inch For Children'S Books Notebooks 1


Welcome to Sudi Stationery Binding, our company is a professional bookbinding supplies manufacturer and supplier, we have been committed to coil binding, wire binding and binding machines for more than ten years. Can provide you with excellent quality, service and competitive prices. At the same time, our company has ISO 9001 certificate, and all products have passed SGS inspection. Our PET coils have been tested by American customers who place orders with our company every month. We will be your ideal supplier and look forward to long-term cooperation.



After visiting our website, if you have any interest in our PET coil binding, please contact us;






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