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If, however, you need to unitise a heavy load, then heavy gauge poly strapping is called for. Heavy-duty poly has taken over from steel strapping in most instances, simply because it caters for a small amount of stretch if the load shifts, whereas steel strap will simply come loose.
Manual strapping requires a Tensioning Tool, a Crimping Tool and Crimps or Seals as they are otherwise known.
First, select the gauge of poly strap you need to use. This is shown as a load kilogram rating. For heavy loads requiring many constraints, go for the higher load rating.
Your Tensioning and Crimping tools must match the force required to hold and seal the strap.
There is also a choice between manual and powered tensioning tools. Powered Tensioners are usually used with heavy gauge strapping, and are battery operated. It allows the operator to hold and use the tensioner in one hand, after placing the strap end and the strap loop into the tensioner body.
A squeeze of the trigger and the strap tensions then is friction welded at the same time, thereby creating a bonded seal. The loop is cut and the Tensioner removed.
When unitising a load to the pallet, the poly strap end is passed under the pallet using either a flexible rod with a strap clip, or a broom handle, or a specialised piece of equipment that feeds the strap under, up and over to meet the operator, who then simply takes the loop and the end and feeds them into the tensioner. Naturally, this type of equipment is used only when a potential health and safety risk has been identified with strap feeding, or the volume of goods being strapped makes the purchase worthwhile.
Stretch wrapping has become the fastest way of securing a load, by unitizing it to the pallet base. For most loads this is sufficient, but there are many instances where strapping can make the load stronger by securing it more tightly to the pallet, or by binding the load more securely.
Take, for instance, four 200 Ltr steel drums on a pallet. By stretch wrapping the load, the film is expected to constrain 1000 Kgs of load from shifting off the pallet in the case of an accident, whereas if the four drums had been strapped horizontally, then the drums had been strapped to the pallet in four pairs, the chances of that load becoming separated or moving off the pallet are greatly diminished. The cost of the strapping under these conditions is nowhere near the cost of the damage to the drum's contents; other freight; the carrier's vehicle; other vehicles; the environment, etc.so strapping can be cheap insurance when used judiciously.
Strapping also helps to prevent round objects from moving around once they have been bundled. The same is for the removal of round objects. If they are bundled, then less time is taken to load and unload, and bundles are more stable than individual items. Shipping of one bundle makes more economic sense than several individual items.
This strap is used in conjunction with a machine tensioner and sealer, or using hand tools such as a tensioner and crimper and with seals.
Used in conjunction with a machine tensioner and sealer. For heavy duty loads.
Used with buckles to hand tension loads. Can be re-tensioned at any time. The soft nature of the strap lends itself to restraining easily marked items and is flexible enough to prevent coiling.
16mm x 1000 Mtrs.
1 blue line.
350 Kg break strain.
19mm x 850 Mtrs.
1 blue line.
590 Kg break strain.
19mm x 700 Mtrs.
1 red line.
840 Kg break strain.
19mm x 500 Mtrs.
2 red lines.
1100 Kg break strain.
32mm x 125 Mtrs.
2300 Kg break strain.
Tensioners and crimpers
To keep your poly strap reels in place and to provide an orderly take off – without uncoiling, along with a container in which your strapping tools can reside, a Mobile Dispenser is a worthwhile investment.
An automatic hand-held poly strap tensioner and sealer. Feed the strap into the machine. Press one button and it tensions to your pre-set limit. Press the second button and it seals the high frequency binds the strap together.
Use only premium auto strap for this machine.
Since steel is sold on weight, the price differs according to volume and frequency. However, Pack King can access these products on your behalf.
Kindly give us a call at +61 3 9720 0425 to inquire about the prices.