Break 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
made. Commonly used in out door applications due to polyester cord's excellent
moisture resistance. Cord strapping is used only in manual applications and
can be sealed using buckles and metal seals or hand tied.
Creep - The loss of the strapping
tension that occurs over a period of time.
Elongation - The % 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.
However, an overly embossed strap can increase the thickness and lower break
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 % 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 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
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
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
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
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.
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.