A staple is a type of two-pronged fastener of metal usually for joining or binding materials together.
A staple pin comprises three parts: Crown, Leg and Tip. Crown denotes the width of the staples, leg as the name indicates is the length of the staple, and tip if the profile of the end point. They can be made from Fine Wire, Medium Wire and Heavy-Duty Wire. Depending upon the applications where they are used - from upholstery to photo frames, automobile seats, plywood boxes, heavy boxes, fixing large cardboard boxes to wooden bases, type of staples can be determined.
Similarly, depending upon the strength and area of holding power required, the crown width of the staple is selected.
A thumb rule for staple length selection is based on the total material thickness that is being bound. If the upper material is "x" mm, then the total length of the pin should be three times the "x". AS the material hardness increases, it is generally recommended to use equal length of pin in both the mating surfaces.
There are different staples offered by us depending upon the application.
Carton Staples_
Carton Closing Staples are two pronged fasteners made from a wider ribbon type flat strip and are used in closing the top flaps of a carton. They are generally of copper coated surface and are designed to optimise the carton and add to its strength by securing the two flaps closely and tightly. In carton closing, the staple legs are folded inwards inside the carton by two anvils which eject out of the tool and moving at the same speed as the staple and simultaneously forcing the legs of the pin inwards. In this process two rectangular perforations are made on the carton flaps alongside the staple.
Carton Staples has a wider crown width indicating a larger area of coverage while holding the two stapled flaps together. Depending on the strength of the joint, pins can be made with different flat strips having higher carbon content to make the pins much stronger.
Plier Staples_
Plier Staples are very much similar to Carton Staples in having similar shape and applications except that they are much thicker and have superior holding strength. They can penetrate the very heavy duty thick cardboard medium very easily due to their high strength. The advantage of plier pins is that they do not perforate the cardboard surface like carton staples but fold inwards due to a flat tongue arrangement in the plier tool. Due to this feature, they are extremely resilient and have very high holding power. The carton also retains its inherent strength.
We offer three different types of Plier Pins:
Model SP2432:
This is the biggest and strongest pin in this category. This pin has the widest possible crown width in this category of 25mm and offers leg lengths from 16mm to 32mm. Thus, it covers the maximum possible range of heavy to extremely heavy-duty applications. Offers plier stapling solutions for the thickest possible paper angle boards and paper boards. The pins are of copper coated finish.
Model SP777:
This is the most popular model and has wide application ranging from poultry carton, fruits cartons, mailing applications and many more. The pin has a standard width of 12mm and leg length varies from 8mm to 16mm. The pin is ribbon type adding stability to the stapled joint. The pins are of electro galvanized finish.
Model SP779:
This is another model in the same class as SP777, but the difference is in the pin configurations and is useful in lighter duty applications. The crown width is 12mm, but the leg length varies from 8mm to 19mm. The pins are of electro galvanized finish.
Staples for Wood_
80 Series Staples:
This is the smallest light duty staples that we offer for wood stapling. The pins are of electro galvanized finish. The pins are made from 21-gauge wire, crown width is standard at 12mm, and leg length varies from 8mm to 16mm. Some of the popular applications are fabric stapling on wood frames, shoes soles, fruit boxes, fixing labels on boxes, rexine fixing on seats in automobiles, furniture etc.
100 Series Staples:
This is the next category of staples that we offer. This is one of the most popular staples with wide applications like the large plywood boxes manufacture, particle boards products, furniture like sofa manufacture, applications where joint strength is required to be extremely high. The pins are made from 16-gauge wire, pins are of 8mm crown width and leg length varies from 16mm to 50mm. Pins are generally available in electro galvanized finish.
Wide Crown (WC) Series:
These are the last of the category of wood staples on offer. These pins have wider crown width possible in wood staples of 25mm and are extremely useful in larger applications like fixing huge cartons on wooden bases. Due to their wide crown, the holder power extends to a wider area across the joint. The pins are made from 16-gauge wire, crown width is of 25mm, and leg length varies from 25mm to 38mm.
