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21x25 Gauge 031021C Copper Flat Box Stitching Wire 21x25 Gauge 031021C Copper Flat Box Stitching Wire

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21x25 Gauge 031021C Copper Flat Box Stitching Wire

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Introduction: These wires are extensively used for stitching cardboard packaging boxes/cartons/books. The wire produced goes through strict testing norms thus offering better Rust resistance properties than others.
The characteristics of our high quality stitching wire:
Wire is clean and free of dirt and contamination
Consistent color and smooth surface
No flaking of protective coating
Wire flows freely off the spool without dropping off the spool.
No kinks or bends in the wire
  • 21x25 Gauge .031X.021 INCH

  • KYA

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Quantity:
Overview

Quality of Finish, Size, Cast, Camber, Tensile, Path of Wire, Spool Sizes, and De-spooling Equipment are all major factors in how stitching wire is going to perform in the field. With the continued demand for increased run speeds and overall profit, high quality stitching wire and proper machine setup are a must.  Stitching wire is a low carbon steel with a zinc galvanized or tin coating. Stitching wire is used in side stitching, saddle stitching, corner stitching, booklet making, and inline stitching in press applications.

1).Wire diameter: 2.50 mm x 0.50 mm to 2.20 mm x 0.60 mm to 2.20 mm x 0.70 mm to 1.80 mm x 0.60 mm to 1.50 mm x 0.50 mm to 0.90 mm x 0.60 mm to 0.80 mm x 0.50 mm and the special requirements of the other specifications

2).Tensile strength: 650-950 / mm and special requirements of other strength

3.)Silk by the tolerance: + / - 0.05 mm

4.)Surface: galvanized or copper plating

Product Description

Flat Stitching Wire:

Wire
Diameter
Size
in Inches
Sizes
in Millimeters
Feet per
pound
*Recommended
Thickness of Work
18 x 20 .047 X .035 1.20 X 0.90 221 5/8" - 2"
19 x 21.5 .041 X .030 1.05 X 0.75 283 1/2" - 1"
19.5 x 21 .037 X .031 0.95 X 0.80 283 1/2" - 1"
20 x 24 .035 X .023 0.90 X 0.60 408 Up to 3/16"
20 x 25 .0.35 X .021 0.90 X 0.55 455 1/8" - 5/8"
21 x 25 .031 X .021 0.80 X 0.55 559 1/16" -1/2"


Round Stitching Wire:

Wire
Gauge
German Wire Gauge
(mm)
m/kg
ASWG
(mm)
m/kg ft/LBS BWG
(mm)
m/kg ft/LBS
21 0.8 253
0.81
247
368  0.81  247  368
22 0.75 288
0.73
304
452
 0.71  322  479
23 0.65 331
0.65
384
571
 0.63  409  609
24 0.6 451
0.58
482
717
 0.56  517  769
25 0.55 536
0.52
600
893
 0.51  624  929
26 0.5 649
0.46
767
1141
 0.46  767  1141
27 0.45 801
0.44
838
1247
 0.41  965  1436
28 0.4 1014
0.41
965 1436  0.36  1252  1863
29 0.37 1185
0.38
1123
1671
 0.33  1489  2216
30 0.35 1324
0.36
1252
1863
 0.3  1802 2682


Stitching-Wire-1
Feature

*Use with box stitching machine to provide extra-strong sides and seams on corrugated cartons.

*Recommended for packaging furniture, mattresses and machine parts.

*High-quality steel with clean, flake-free finish.

*Galvanized Stitching Wire – Corrosion resistant.

*Copper Coated Stitching Wire – Bright finish.

box stitching wire

Application

These wires are extensively used for stitching cardboard packaging boxes/cartons/books. The wire produced goes through strict testing norms thus offering better Rust resistance properties than others.

box stitching wire

Wire Tensile:

Wire Tensile is the pull required to break the wire and is measured in pounds per square inch (PSI). The higher the breaking point, the stiffer the wire. High quality stitching wire has a tensile range of 135,000 to 165,000 PSI. A tensile above 165,000 PSI will wear out parts in your stitching head prematurely, causing maintenance costs and down time. High tensile wire can also wear out the knives in a trimmer section prematurely. The increased hardness of the stitching wire will nick a trimmer section’s knives more severely when struck during saddle stitcher jams. A tensile below 135,000 PSI will cause the stitching wire to be soft and not properly form a stitch.


High tensile stitching wires are available in the industry, but the cost benefits of using a high tensile wire with a thinner diameter on thicker applications is outweighed by the cost of premature wear on stitching heads and trimmer section knives. 

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Date: Apr 15th-19th,2024
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