The best way to Choose the Best Stretch Film for the Job
It's unitizing---assembling products into a single unit--usually on a pallet---that makes packaging and shipping both efficient and cost effective. Unitizing products saves time and reduces handling costs. It ensures a safer, more efficient distribution process, while shielding products from damage and theft. Applying stretch film is one of the most secure and very frequent ways of accomplishing this.
For finding the right stretch film, the target is to find the one that matches your firm's specific need without paying for unneeded properties. For instance, loads that may spend most of their days in a warehouse or shipping container, don't desire film. On the other hand, loads with lightweight film that don't fit to the pallet corners are subject to transferring loads and punctured film. Following are 6 considerations for finding the right stretch film for the job.
Primary Cost Comparisons: Cost/lb. vs. Cost/ft. vs. Cost/load
Could be perplexing, when talking to a stretch film salesperson, trying to determine how their product compares to the product the consumer is currently using. All picture comes by the pound. Conventional films that typically have higher gauges are actually less expensive per pound because they use less expensive plastic resins to make the picture. The high performance movies tend to be more expensive because they're manufactured with better quality resins and could be layered. This is a more costly production process. The high performance movies typically end up costing less complete as the movie 's light weight counters the more costly cost per pound
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However, what truly matters to the consumer is the way much the picture costs per foot. Even more significant compared to the cost per foot is the cost per load. The argument for the newer high performance movies is that even though they are expensive to make (cost more per pound) they're much lighter in gauge and therefore lighter in weight. For example, high performance picture made to replace an 80-gauge conventional film might be expensive to make, but it may require 50% less film to hold the load as it works just in addition to the material that is 50% thicker. The end effect in this example is the user saves 30% on film prices by switching to the thinner high performance film.
Then cut the movie off of both loads and weigh it on a scale that is sensitive that is small. This can indicate the total amount of film used for each load. Then multiply the weight of the picture by the cost per pound (ask your sales person for the weight of the roll or the weight of the case if it's not clearly marked) and divide by the roll or case cost. This can yield the cost per load. Multiply the cost per load by the number of loads typical for each day, each week and so on.
Because there are a lot of variables with film, users must be quite cautious to understand and support the mathematics themselves and never to rely on the salesperson's mathematics. Element of the process should always be before accepting any change to adequately try the new material. The bottom line is the brand new material must contain the load as safely and efficiently as the old material. Following are four added considerations for picking stretch film.
This is undoubtedly the main choice. Much of the selection will probably be predicated on cost, but it has to be tempered by the demands of the work. Not that long ago, prior to the arrival of exceptionally progressive stretch films, gauge (thickness) was just about the only thing that mattered. Now it is just one of several considerations.
Normal/authentic-gauged stretch film provides a great amount of tear resistance, stretch, and strength. Because it is impossible for the common worker to apply enough force to get to the most stretch possibility of the film, the primary drawback is waste.
Market/micron stretch film is a step down from authentic- gauged stretch film and often comes in a 57, 60, or 63 gauge. The main difference is the thickness and the total amount of stretch potential. It's generally stiffer and will not stretch as much as a true-gauged film. On the other hand, it will produce less waste, and is not weak, more affordable.
Hybrid/multilayer stretch film is widely used in place of lighter gauge film. It's manufactured in 47, 51, and 53 gauges. It has tear resistance than micron stretch film, is stiffer and has more layers. Benefits include: lighter rolls lower cost, and the need for less physical force during application.
The most recent and best lighter-estimated (less expensive) high performance films are perfect for light to moderate, regular-shaped loads that will not run into challenging transportation system or storage conditions. High performance stretch film offers exceptional load retention, exceptionally elastic film recovery, high-strength formulation and reduced film neck-down. In the high performance category light film gauges have elevated puncture and tear resistance, and exceptional cling properties.
Conventional movies are believed foolproof and frequently result in fewer complaints from the warehouse. As the weight of the film can help counter a lousy application by the worker, the preciseness with which they have been employed isn't as essential.
Carefully think about the type of load and even the skill degree of warehouse staff. In most cases, in a well-managed environment with nicely cubed loads, the pricey high performance movies will save cash.