Wire diameter 2mm 50mm pitch 4:1 electroplated gold spiral bound coil
Electroplated spiral bound coils
As one of the most common forms of document binding, our high-quality electroplated spiral binding coils are by far the most popular binding supplies. Flexibility, strength, and affordability make them the first choice for businesses and users of all types, with bright, shimmering coatings, dazzling saturated colors, and best suited for high-end textbook binding.
Since the birth of electroplating spiral, the best-selling colors are gold, rose gold, electroplating black, champagne gold, electroplating silver, etc. For coil binding with higher requirements, most customers will choose 2.0MM wire diameter 4:1 pitch to make spiral binding coils.
Spiral binding coils are used in: binding of loose-leaf books, photo albums, desk calendars, monthly calendars, notebooks, etc.
We provide a large number of spiral binding coil sizes for you to choose from.
The length, pitch (hole spacing), and various colors of the coils can be customized for you. The following table can be used as a reference.
If you are not sure how to choose, please send us an email to luo@sudidg.com. We will introduce you to the coil binding that suits you.
Size (Millimeter) | Size (Inches) | Stack Capacity (Inches) | Sheet Capacity* (20 lb. Bond) | Filament Diameter |
---|---|---|---|---|
6mm | 1/4" | 5/32" Thick Stack | 5-35 Sheets | 1.6mm |
7mm | 9/32" | 3/16" Thick Stack | 36-47 Sheets | 1.6mm |
8mm | 5/16" | 1/4" Thick Stack | 48-60 Sheets | 1.6mm |
9mm | 23/64" | 9/32" Thick Stack | 61-70 Sheets | 1.75mm |
10mm | 3/8" | 5/16" Thick Stack | 71-80 Sheets | 1.75mm |
11mm | 7/16" | 3/8" Thick Stack | 81-90 Sheets | 1.75mm |
12mm | 1/2" | 13/32" Thick Stack | 91-100 Sheets | 1.75mm |
13mm | 17/32" | 7/16" Thick Stack | 101-110 Sheets | 2mm |
14mm | 9/16" | 15/32" Thick Stack | 111-120 Sheets | 2mm |
15mm | 19/32" | 1/2" Thick Stack | 121-130 Sheets | 2mm |
16mm | 5/8" | 9/16" Thick Stack | 131-140 Sheets | 2mm |
17mm | 0.67" | 0.55" Thick Stack | 141-150 Sheets | 2mm |
18mm | 23/32" | 5/8" Thick Stack | 151-160 Sheets | 2.08mm |
19mm | 0.748" | 0.62" Thick Stack | 161-165 Sheets | 2.08mm |
20mm | 3/4" | 11/16" Thick Stack | 161-170 Sheets | 2.08mm |
22mm | 7/8" | 3/4" Thick Stack | 181-200 Sheets | 2.08mm |
23mm | 9/10" | 4/5" Thick Stack | 201-210 Sheets | 2.08mm |
25mm | 1" | 13/16" Thick Stack | 211-230 Sheets | 2.36mm |
28mm | 1-1/8" | 7/8" Thick Stack | 231-250 Sheets | 2.36mm |
30mm | 1-3/16" | 1" Thick Book | 251-270 Sheets | 2.36mm |
32mm | 1-1/4" | 1-1/16" Thick Stack | 271-290 Sheets | 2.36mm |
35mm | 1-3/8" | 1-1/4" Thick Stack | 291-300 Sheets | 2.36mm |
38mm | 1-1/2" | 1-3/8" Thick Stack | 300-320 Sheets | 2.4mm |
40mm | 1-9/16" | 1-1/2" Thick Stack | 321-350 Sheets | 2.4mm |
45mm | 1-3/4" | 1-9/16" Thick Stack | 351-390 Sheets | 2.4mm |
50mm | 2" | 1 -3/4" Thick Stack | 391-440 Sheets | 2.6mm |
What color can be plated?
Generally speaking, any color can be electroplated, because the color after electroplating will be much brighter than the color of other materials, but some originally dark colors are not recommended for electroplating, because the brightness of these colors is not very obvious after electroplating, and the color of electroplating is the most The ones are golden rose gold, rainbow gold silver and other bright colors.