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Breaking Strength
The amount of force required to break the strapping is expressed in pounds.
Camber
The side to side curvature of strapping. Machine grade strapping must be camber-free to allow the strapping to move through the equipment.
Cord Strapping
Manufactured from polyester fiber. Polyester fiber is one of the strongest synthetic fibers created. Cord strapping is commonly used in outdoor applications due to polyester cord’s excellent moisture resistance. It is used only in manual applications and can be hand tied or sealed using buckles and metal seals.
Creep
The loss of the strapping tension that occurs over a period of time.
Elongation
The percent of stretch in the strapping as force or tension is applied.
Elongation Recovery
The strap’s ability to return to its original state after tensioning.
Embossing
The textured pattern applied to the strapping surface. Quality embossing will increase joint efficiency, enhance split resistance, and improve stiffness characteristics. An overly embossed strap can increase the thickness and lower break strength.
Joint Efficiency
The usable strength of strapping is only as powerful as the joint holding the two strap ends together. Joint efficiency is expressed as a percent of the total breaking strength of the strapping.
Knurling
The embossing found on the surface of polypropylene strapping. The feed wheels in strapping equipment grip the embossed strapping to carry the strapping through the equipment. Low knurling can cause miss feeds and strapping jams.
Feed Wheel Tensioner
Tensions painted or waxed steel strapping on a flat surface. This strapping tensioner has a serrated feedwheel that grips the strapping.
Front-action Sealer
Handles are held perpendicular to the strapping and usually in front of the operator. Handles are pushed together to crimp the strapping seal. For light duty strapping applications.
Polyester Strapping
The most rigid of all poly strapping materials. Polyester Strapping has superior tension retention and very low elongation. These characteristics make polyester strapping the choice strapping for empty bottles and cans, lumber, and heavy rigid loads.
Polypropylene Strapping
The most common and least expensive strapping material available. High elongation and recovery but low retained tension make polypropylene strapping an excellent choice for light duty unitizing, bundling and carton closing.
Push Type Tensioner
Tensions painted or waxed steel strapping on irregular or round bundles. The steel strapping is engaged by a serrated feed wheel.
Rack-and-Pinion Tensioner
Tensions dry or lubricated steel strapping on round or irregular shaped packages. Uses a serrated gripping dog to hold the pulled steel strap end. Has limited strapping take-up.
Shock Resistance
The ability of strapping to stretch and return to its original state upon impact without breaking.
Side-action Sealer
Lower handle can be laid on a flat surface enabling the operator to use both hands on the upper handle to apply more force on the strapping seal . For heavy duty strapping applications.
Split Resistance
The ability of strapping to resist lateral tearing.
Steel Strapping
Is the strongest strapping material made. Recommending strapping where high strength is necessary and low elongation is important. Ideal for very sharp and extremely hot products.
Steel Strapping – Regular Duty
A low carbon steel strapping product manufactured for low to medium applications such as package reinforcements, unitizing, bundling, palletizing and box closure.
Steel Strapping – Super Duty
A mid-carbon steel strapping product manufactured for packaging and bundling brick, concrete block, refractory brick, fabricated metal parts, packaged glass, hardboard, particle board, lumber and many other products.
Steel Strapping – High Tensile
A high carbon steel strapping product that is heat treated to produce a product which combines high strength and elongation (stretch) for shock resistance. Typical applications are unitizing, compressed fiber bales, securing heavy steel coils and open-top railcar and trailer loading.
Polyester (PET)
One of the strongest plastic strapping products, polyester serves as a viable alternative to steel strapping in the brick, lumber and textile industries. Polyester provides excellent retained tension to stay tight on rigid loads. Its excellent recovery properties help a load absorb impact without strap breakage.
Hand Grade Polypropylene (HPP) Polypropylene strap is an economical packaging solution designed for light duty unitizing, palletizing and bundling. The embossed products provide efficient seal joints and superior split resistance. Polypropylene offers higher elongation and elongation recovery properties to ensure secure packaging for shipping and storage.
Machine Grade Polypropylene (MPP)
Polypropylene strap is an economical packaging solution designed for light duty unitizing, palletizing and bundling. The embossed products provide efficient seal joints and superior split resistance. Offered in a wide variety of sizes, Acmes polypropylene runs flawlessly though automatic and semi-automatic equipment from many manufactures.
Tensile Strength
The stress at which a material breaks or permanently deforms.
Ultimate Strength- The maximum stress a material can withstand when subjected to tension, compression, or shearing. It is the maximum stress on the stress-strain curve.
Windlass Tensioner- Primarily used with dry heavy strapping for extra heavy- duty applications. The windlass tensioner winds one end of the steel strapping around a slotted windlass shaft. Strapping must be pre-cut to desired lengths.
Yield Strength
The stress at which material strain changes from elastic deformation to plastic deformation, causing it to deform permanently.