Comparison of Two Different Stretch Wrapping Film Packaging Technologies

Stretch wrap film packaging is one of the forms of tray packaging, and it is also an ideal way for users. Its working principle is to use the shrinkage property of the stretch film to bind the goods and the tray as a whole, and play a fixed role, facilitating loading and unloading and transportation. At the same time, the fully enclosed outer package can be dust-proof, moisture-proof and waterproof. After being stretch-wrapped, the products can be applied to all walks of life, such as chemicals, paper, food, glass bottles, electronics, medicine, and refractories.

Stretch wrap film packaging is one of the forms of tray packaging, and it is also an ideal way for users. Its working principle is to use the shrinkage property of the stretch film to bind the goods and the tray as a whole, and play a fixed role, facilitating loading and unloading and transportation. At the same time, the fully enclosed outer package can be dust-proof, moisture-proof and waterproof. After being stretch-wrapped, the products can be applied to all walks of life, such as chemicals, paper, food, glass bottles, electronics, medicine, and refractories.

Among the stretch film wrapping and packaging equipment, the fastest and most automated tray packaging line is a ring and rotary arm system wrap film packaging machine, which has a stable market. Aetna is one of the world's leading suppliers of tray packaging equipment, which are able to offer both products.

Swivel arm system is more reliable, while ring system is more waterproof

Aetna uses Spring Water Mineral Water as an example to show that both ring and rotary arms can be used simultaneously. Spring Water Mineral Water recently purchased the sixth rotary-wrap-wrap machine, but the company still maintains a Genesis ring system wrap-around packaging machine to achieve the speed of pallet packaging to meet the high-speed production needs of the entire production line. The ring system wrap film packaging machines have a large number of detachable accessories and are often considered less reliable than swivel arm systems, but Aetna's Mark Tucker said: "If you want to improve the waterproof performance of the tray packaging, use a loop system to wrap the film. The packaging machine works best.

Most manufacturers believe that the speed of the ring wound packaging machine is higher

As far as speed is concerned, the speed of an annular wound packaging machine can reach 120/hour. It is also because of its speed, retailers prefer to use the ring system packaging European small tray. ”

Orion Packaging Systems is also keen to manufacture ring-wrap stretch film packaging machines. The recently introduced A800 series is one of the faster speeds in its Autoline range of equipment. Orion’s director, Ann Williams, said: “The A800 series film wrapping machines can be programmed according to a variety of different needs. They can either pack lightweight fragile items or pack bulky goods at speeds up to 120 trays/hour.”

MJ Maillis has been selling Mancon series ring packers in the UK. Now, this series of 2201 has added new features. It is said that its advantages are easy installation and low production costs. Steve Bates, sales manager for the stretch film division, pointed out that the stretch wrap film packaging machine using the carbon ring further reduced the inertia during wrapping, improved controllability, and extended the life of the machine. Now they are working hard to make it easier to operate and make the film more stretchable.

MJ Maillis is very skeptical of some manufacturers' claims of packaging speeds, including the speed of the loop system. Steve Bates thinks: “To reach the speed of 120 discs per hour needs to meet various conditions, which is impossible to achieve in practice.” Indeed, for most loop-wrapping packaging machines, 100 discs per hour The speed is closer to the true level.

Inpac's Mark Parminter estimates the speed of this type of rotary-arm machine, ranging from 40 to 100 discs per hour. The company stated that, in some cases, rotating arm technology can catch up to and even exceed the speed of the ring packing machine. For example, Inpac developed a two-arm rotating system that allows for a pack speed of 120 trays/hour.

But even so, most manufacturers admit that there is a certain gap between the speed of the rotating arm system and the ring packing machine.

In terms of cost, the rotary arm system is even more advantageous

Inpac's Mark Parminter compares the Octopus ring stretch film wrapper to the fully automated rotary arm system Stretch Wrapper, which costs 50,000 pounds and the latter 30,000 pounds.

When it comes to the cost of stretch-wrap packaging, Mr. Mark Parminter estimates that the top-level ring systems used by some customers will cost between 2,000 and 3,000 pounds per year. He pointed out that this is very similar to the purchase costs of many low-end machines. Inpac's own Ecomat Easy was priced at £3,000.

In fact, in terms of cost recovery, Inpac claims that its more expensive machine, the Ecomat Plus, priced at £5,000 is a good choice. Because this semi-automatic machine uses powerful pre-stretching technology, it saves the use of plastic film and can recover costs in less than twelve months. The recovery period for similar low-cost equipment is generally three years. Using Plus can stretch a meter of film to 3.6 meters, which reduces material consumption by 70%.

Source: Packaging Machinery