Presona: Focus on Plastic Baling Wire

In today's age of sustainability, baling equipment manufacturers are faced with an important choice: should they continue to use traditional steel baling wire, or should they switch to the more environmentally friendly and efficient plastic baling wire? This article interviews Swedish baling wire manufacturer Presona to get their expert insights and solutions for plastic baling wire, with the aim of urging more baling wire manufacturers to choose plastic baling wire in order to achieve sustainable development and economic efficiency.

About Presona

Presona AB is one of the world's leading designers and manufacturers of balers with pre-compression technology for efficient baling of most types of materials, from paper and plastics to household and industrial waste. The product range also includes pneumatic waste extraction systems for the graphics industry and for paper and packaging manufacturers. The company is headquartered in Tomelilla, in southern Sweden near mainland Europe. The head office and factory are housed in well-ventilated, modern buildings that prioritise the working environment. With efficient production processes and co-operation with established suppliers to ensure quality at every stage, Presona's awareness of safety and environmental protection permeates the workplace - employees must work in a safe environment. It is of utmost importance to Presona that the equipment supplied always provides the greatest possible safety for the customer. presona equipment is found (almost) everywhere. We have supplied baling systems, waste extraction and sorting equipment to more than 65 countries around the world.

Presona

Q&A with Presona.

1) How long has Presona been offering plastic baling wires?

We built the first baling press with a plastic strapping device in 2000. The first machine was presented at the Entsorga exhibition in Cologne in the same year.

2) Why is this plastic line more suitable for recyclers?

The main reason for our development of this feature is the increasing use of solid waste (municipal waste) for incineration in so-called "waste-to-energy" plants.

When baling waste for incineration, the use of traditional steel wires for baling material causes many problems. The wire has to be removed before the incineration process, which is costly and labour-intensive. Typically, bales are wrapped in plastic foil (for storage), which complicates the removal of the steel wire because it is "hidden" under the foil layer.

The breaking properties of plastic rope are comparable to those of steel wire. Another argument is the level of cost. Strapping wire is the most expensive consumable in baling operations - using plastic rope instead of steel wire can reduce the cost of strapping material by up to 50 per cent. Given the volatility of steel prices and the imbalance between supply and demand, it is likely that recyclers will be increasingly incentivised to choose plastic strapping solutions.

3) Why might it be better for consumptive plants?

We can see many advantages of plastic baling twine in this sector. PET material has the same or better tensile strength compared to steel wire. Bundles can be stored outdoors - very good UV stability. Reduced weight of the baling medium (considered waste in this area) - the weight of PET wire in a typical factory size bale is less than 15% of the weight of steel wire. Safer bale handling - no sharp wire tails sticking out.

Based on our experience, we believe that the entire process of handling baling wire - from unbundling to screening/extraction of the baling wire in the pulping process - can be completely transferred from steel wire to PET baling wire.

4) What materials can be baled on this line?

As far as the use of plastic strapping for different materials is concerned, Presona offers two different strapping/bundling systems.

In plants where the material is pre-processed (sorted and shredded into relatively homogeneous and dry material) and where the operation requires continuous feeding of large quantities of material, we usually offer a channel baler. Our baling systems use 5 vertical PET baling wires to bind the bales.

In plants where pre-treatment is not possible or required, we offer a two-punch baler with a baling system using polyester (PET) baling wires. This system functions in the same way as a normal wire baling wire system, in that the bales are tied as they are ejected from the baling chamber, but instead of twisting the wire ends together, the ends of the PET strapping are welded together to form a strong joint. This system makes it possible to set the number of straps per bale. The material properties determine the number of straps required to maintain the shape of the bale. For the "waste-to-energy" sector, it is worth mentioning that PET has a high calorific value = added value and is not as problematic as steel wire.

This means that we can offer plastic baling wires for all balable materials.

5) What percentage of the market do you think plastic baling wire may one day occupy?

This is a difficult prediction to make. However, considering the

- the above (price and availability of steel vs. plastic).

- Most of the wire used in the baling process is more of a "foreign substance" than PP and PET.

- Due to the lower weight and therefore favourable handling (and transport) costs, and mentioning some of the arguments in favour of plastic strapping media, we are pretty sure that the market share will grow. How fast and how much will largely depend on the "level and speed of acceptance" of the recipients, especially the consumer factories. If fully accepted, plastic strapping could well reach a market share of 50 per cent or more.

Metal Reels

Wood Reels

Plastic Reels

The choice of plastic baling wire as an alternative has become a sustainable trend in the baling wire manufacturing industry. This article highlights the advantages and application areas of plastic baling wire through an interview with Presona, a specialised baling equipment manufacturer. As a result, more baling equipment manufacturers are called upon to abandon steel baling wire and opt for plastic baling wire for sustainability and economic efficiency. Through this shift, companies will not only be able to reduce costs and improve efficiency, but also positively respond to global sustainability goals and build an environmentally friendly image.

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