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Purchaging a pallet wrapper
Goods on a pallet can be effectively protected during storage and transport by wrapping the whole with plastic film. Doing this manually is one option: the employee ties the beginning of the film to the pallet and then walks around it several times, unwinding the roll and slowly working upwards. This method is not ergonomic, rather time consuming and the stability of the load is often not optimal. As long as it concerns a few pallets per day, this is the most economical approach. For larger numbers, from about ten pallets per day, investing in a wrapper can be interesting. Not only does this save time and work is ergonomically sound, but stability is also guaranteed and you can take advantage of an additional advantage: material savings. This last factor plays an important role in determining the payback period.
Practice
In daily practice, it appears that many companies still work manually where a pallet wrapper would be preferable for economic reasons alone. The fact that people refrain from mechanizing or automating film wrapping is often due to the often-needed adjustment of the logistics system. In the new situation, a new processing station is created: the pallets first have to go to the wrapper, and then to one of the loading docks.
Equipment
There are four types of machine wrapping; some of them are also available in a semi-automatic and a fully automatic form.
1. Turntable Pallet Wrapper
This is the most sold type on the Dutch market; it is the most flexible solution for wrapping up to 20 pallets per hour. The pallet is placed on a revolving platform, an arm that carries the film roll slowly moves up until the whole is wrapped. We distinguish a semi- and a fully automatic variant. In the first (fig. 1) the film is tied by hand and released after wrapping, and the wrapping is started at the push of a button. In the fully automatic version (fig. 2) – interestingly from 20 to 40 pallets per hour – the film is applied fully automatically to the pallet supplied from the warehouse or roller conveyor. The foil is removed automatically, after which the process is completed with a sealing or knotting operation for the foil. The turntable pallet wrapper is a good 'entry-level solution' to implement (semi- or fully) automatic wrapping. The investment is relatively low, it takes up little space and has a long lifespan (with a high residual value in a wide market). The disadvantage can be said that the 'centrifugal' force of the pallet plus load sets limits on the rotational speed. When working with a pump truck, a ramp is required for the supply of pallets (or installing a turntable in the floor). A fully automatic turntable pallet wrapper contributes to optimization of the logistics flow. While the pallet is being wrapped, the forklift driver can pick up a new pallet again, no time is lost due to manual operations; the process continues automatically.
2. Mobile pallet wrapper
A kind of wrapping robot, powered by a battery, moves around the pallet, feels the load itself, and also applies the film 'spiralwise'. This method is suitable for large objects (where the weight is irrelevant). Because this type of wrapper is clearly not location-specific, it can be wrapped at different locations.
3. Pallet Arm Wrapper
The pallet is stationary and an arm with a film roll rotates around the load at a speed of up to 12 rotations per minute. The pallet can remain on the ground, which is an advantage, especially with heavy (or unstable) loads. Because the pallet does not move, higher wrapping speeds than with a turntable are possible; after all, the 'centrifugal force' imposes no restrictions here. On the other hand, this solution requires more space than a turntable wrapper and is moreover more expensive. The sliding contacts used are a potential source of malfunctions. Unstable loads must be packed at a higher speed. The arm wrapper is also available in fully automatic versions (fig. 4) with a speed of 30 to 35 rotations per minute. Investment in the fully automatic version is interesting from 40 to 60 pallets per hour.
4. Ring wrapper for pallets
In this fully automatic method, the film roll hangs from a ring, which can rotate around the pallet at a speed of approximately 70 rotations per minute (twice as fast as with an arm wrapper) and can also move vertically (fig. 5). . This is not only a fast, but also flexible method: the film can be applied and removed at any height, for example only on the top part (with other machines you always have to start and stop at the bottom), which saves material. A special point is that the interference sensitivity of the ring winder is smaller than that of the arm winder because of the lack of sliding contacts. A fully automatic ring wrapper is economical to purchase from 60 – 140 pallets per hour.
Film material for wrapping pallets
Film is used to wrap all kinds of goods, which must provide the required stability and protection during transport and later storage. Standard wrapping film is available in transparent or (for theft prevention) black version and is supplied on 50 cm wide rolls for manual or machine use. Polyethylene machine film with a thickness of 20 µm and a length of 1700 m (approx. 17 kg) is widely sold. The price varies from day to day along with the PE price, which makes it difficult to determine exactly the packaging price per pallet. In addition to standard foil, there are special types: perforated foil (for air permeability, such as plants); slotted film (more permeability); white wrapping film; nylon wrapping net (very high air passage, suitable for heavier loads: potatoes, onions, building materials).
Film material for wrapping pallets
Film is used to wrap all kinds of goods, which must provide the required stability and protection during transport and later storage. Standard wrapping film is available in transparent or (for theft prevention) black version and is supplied on 50 cm wide rolls for manual or machine use. Polyethylene machine film with a thickness of 20 µm and a length of 1700 m (approx. 17 kg) is widely sold. The price varies from day to day along with the PE price, which makes it difficult to determine exactly the packaging price per pallet. In addition to standard foil, there are special types: perforated foil (for air permeability, such as plants); slotted film (more permeability); white wrapping film; nylon wrapping net (very high air passage, suitable for heavier loads: potatoes, onions, building materials).
Film feed options
The wrapping equipment can be fitted with a mechanical film brake to ensure that the film is placed around the goods with the correct tension. This creates a certain tensile force on the foil; the tensile force, together with the amount of film, in fact determines the 'packing force' and thus ensures that the goods remain stable on the pallet. A more professional solution is a powered pre-stretch system. As the name implies, it stretches the film considerably: by up to 300 percent, i.e. 1 meter of original film becomes 4 meters. The large savings on wrapping film that are possible as a result, lead to a short payback period for this option (which requires an investment of approximately € 2000). A commonly used term for this film is Powerstretch.
Adjustable
The tensile force is adjustable depending on the load, so that the correct packing force can be set for both light loads (cushions) and heavy (cement bags) and a stable whole is always created. Investment in this option is economical from approx. 20 pallets per day.
Points of attention and tips
Variety of solutions A lot of knowledge is needed to choose the right wrapping solution for a given situation. Economic efficiency plays a key role here: a system should normally pay for itself within a year. The supplier has an important advisory function. A broad program will prevent the supplier from putting forward a certain solution out of its own commercial self-interest, while another solution (which falls outside its program) would actually suffice better. Make a cost comparison Always make a thorough cost calculation before investing in a pallet wrapper. Compare the costs of manual and machine wrapping over a longer period of time. If necessary, include the option of making significant savings on film by investing extra in a powered pre-stretch system.
Basic information for requesting quote
In order to request comparable quotations from suppliers, the following information is required at least: dimensions of the pallets (l x w x h); type of products to be loaded (light, heavy, stable or unstable); stacking method (columns or related); capacity: number of pallets per hour/day; environmental conditions; handling of the pallets (reach truck, forklift, pallet truck, roller conveyors, stacking robot); logistics flow; available budget; additional requirements for the wrapped pallet (dust and water tightness); storage method of the packed pallets (outdoor air, open trucks);
A few words for explanation
The environmental conditions can place special demands on the chosen wrapping solution. Think, for example, of a cold store or a fish processing company, where stainless steel is used in connection with frequent cleaning of the working environment. The logistics flow can form a starting point or cause for adjustment when introducing wrapping equipment. For example, if stacking robots are located at five locations, which are then transported to one point, one wrapper is sufficient. Two wrapping solutions are required for transport to two points, etc. Rapid supply of pallets from (or to) an automatic storage system can mean opting for a high-quality solution such as a ring wrapper. Finally, the additional requirements for dust and water-tightness: an example of this is the requirement to place a so-called top sheet on top of the wrapped pallet, so that no water can penetrate.
View the latest models of pallet wrappers HERE
Source Logistiek.nl
Verwandte Produkte
Wrapping film for standard pallet wrappers. Cling: Inside.By standard machine stretch film for pallet wrappers we mean film that can be stretched to 150% of its original length. For most standard, simple pallet wrappers, this is the recommended stretch wrapping film. These rolls of machine fillm are available in transparent, black, white and various colors.As a manufacturer of these rolls of machine film rolls, D.J. Hoogstraten BV guarantees the quality. Any deviating specifications are possible.By default, this stretch film has an "inside cling" which means that the adhesive side is on the inside: this is important when mounting on your machine. The outside is non-adhesive.Do you not yet have a pallet wrapper in your company? Please contact us for a demonstration and prizes. Printed stretchfilm can also be realized...
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Powerstretch is a LDPE stretch film or wrap film that is used on pallet wrapping machines (automatic pallet wraps) for wrapping products on a pallet. This type of power-stretch should only be used on a suitable machine and when the film can be optimally stretched.You will save a lot of film, labor hours and costs with powerstretch machine fillm. Your pallet wrapping machine is quickly recouped! With the help of this, 1 meter of Powerstretch-250% film can be stretched up to 3.5 meters of film Thanks to this extreme stretch characteristic, you'll use much less material. Although the costs per kilogram are higher than standard films, it will save on costs. Also for environmental reasons it is obviously good to use less film, less wrap[film/plastic= less waste. The properties of this Power Stretch film are such that a good stability of the pallet is guaranteed when the film is used properly i.c.w. the pallet wrapping machine.Do you not yet have a pallet wrapper with pre-stretcher in your company? Then contact our specialists...
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What is Powerstretch? Powerstretch is an advanced stretch film that is used on pallet wrapping machines (automatic pallet wrappers) for prorecting and stabilizing products on a pallet for transport. The pallet wrapper must be provided with a pre-stretcher for this film. With the help of this, 1 meter of Powerstretch-300% film can be stretched up to 4 meters of film. Thanks to this extreme stretch characteristic, you'll use much less material. Although the costs per kilogram are more than with standard films, it will save you money at the end. Your automatic pallet wrapper will by quickly recouped!Also for environmental reasons it is obviously good to use less LDPE film. The properties of this Power Stretch film are such that good stability of the pallet is guaranteed when the stretch film is used in combination with the pallet wrapping machine.Do you not use a pallet wrapper with pre-stretcher in your company jet? Then contact our specialists for demonstration possibilities and prices...
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This pallet wrapping machine is supplied with one basic program and has limited wrapping options. It comes with a mechanical brake type film carriage system.Entry level turntable wrapper, suitable for wrapping a low number of pallets per day (<15 Pallets)Technical CharacteristicsWrapping programs model EVA Operating panel with one selectable program and parametersTurntable diameter 1500 mmOptional diameters 1650 mmTurntable Maximum loading weight 1200 KgHorseshoe machine Maximum loading weight 1200 KgAdjustable turntable rotation speed facilitated by frequency changer From 5 to 12 rpm *Soft stop / start facilitated by frequency changer STANDARD SUPPLYPrecise turntable phase stopping at cycle end STANDARD SUPPLYCarriage braking system FM (FTL = Force to load)Standard Wrapping height 2200 mmPhotocell detection of load height STANDARD SUPPLYAdjustable Spool carriage speed facilitated by inverter From 1,3 up to 5,4 m/minUpwards Spool carriage speed Independently settableDownwards Spool carriage speed Independently settableFront and rear lifting with fork lift truck STANDARD SUPPLYTotal installed power 1.00 KwStandard voltage 230 V - 50/60 Hz – 1 PhElectrical and motor protection system IP 54Output capacity 20 Pallets per Hour *** Depending on configuration** Depending on film quality and working environment Wrapping conditions and pallet dimensions have an influence on the Max output capacity..
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Our robust turntable model Mytho stretch wrappers are characterized by their high performance and ease of use. For the machines from the Mytho series many options and variants are possible. This allows flexible response to different customer requirements. The patented swivel arm of the Mytho machine significantly simplifies installation and commissioning of the machine. Our turntable winder is suitable for all common pallet types and pallet weights...
button_cart-0-1-262x334.jpg "Pallet wrapper Atlanta Synthex")
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Synthex is characterised by the use of power pre-stretch film 200%, to reduce the cost of ownership. 11" TOUCH screen operating panel with 6+1 Programs. Flexible turntable machine...
button_cart-0-1-262x334.jpg "Stretch wrapper Atlanta Marathon")
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The Marathon model is a unique, patented and world's first mobile stretch wrapper that operates completely free of electrical energy. Marathon is suitable for wrapping different products with different shapes, weights and dimensions.Manual operation is simple and easy. The movement of the foil carriage up and down via a manual transmission.DETAILSMinimum pallet dimensions 650 x 400 mmMinimum pallet weight 50 kgMaximum height (including pallet) 2,000 mmFoil slide FM with mechanical brake..
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Cardboard corner profiles are available up to 240 cm in length. They offer complete edge protection to mainly cardboard boxes and other straight products. Due to its length, a cardboard corner profile contributes to the stabilization of the pallet. Cardboard angular profiles can be placed horizontally and vertically. Also available in very short variant to place under strapping band. This coardboard is pressed under high presure so its very hard and sturdy...
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