Gradeall’s team perceives that tire collectors might not be willing to invest in two tire balers, either for financial reasons, or due to the amount of free space available at their facilities. After working with customers, who operate Gradeall’s machinery on a day to day basis, the company can now demonstrate that all road going tires can be baled using MKII tire baler and sidewall cutter.

The sidewall cutter enables truck tire sidewalls to be removed, leaving a tread section. The output can be baled in a specific pattern which has advantage of allowing between 22-26 truck tires to fit into a strong dense tire bale itself, or left aside and sold to agricultural supply chains as effective silage pit covers.

The MKII tire baler is good for this, as it features a durable tire retention system so that when the baler completes a compaction stroke, the retainers in the lower doors prevent the compacted tires springing back up, allowing more tires to be deposited into the baler between compaction strokes.

Typically, 3-4 bales are possible per hour; that is 72 truck tires per hour. With such productivity, tire piles can quickly be turned into an easy manageable collection of tire bales. In addition, there are benefits from the point of view of the operators dealing with these tires. In the past, loose truck tires may have been manually loaded onto a truck, which is a hard and time consuming task itself. Notwithstanding, the process of using the sidewall cutter and baler, if managed correctly, does not result in any back-breaking work. It is also much easier to load bales into a truck or container.

The sidewall cutter deals well with the issue of tire beads. Once the bead is removed, the tire is much more flexible and easy to bale. In the past, ways to remove the bead from truck tires involved de-beading machines which were large hooks brutally ripping the bead out of the tire. Not only did this result in a very large machine susceptible to structural failure with large power packs that had high running costs, it also produced a messy bead with rubber still attached. Such a bead, unfortunately, couldn’t be used for anything. The sidewall cutter, on the other hand, is a relatively small machine with low running costs that effortlessly lifts truck tires off the ground to its cutting head and will glide through the circumference of the tire isolating the sidewall and threaded section. When timed against a de-beading machine, the sidewall cutter has a much shorter cycle time per year.

The sidewalls can be sold on to farmers for silage covers, no more need to lift old tires full of stagnant water when covering the silo. Furthermore, silage rings will not be filled with rain water anymore, therefore they won’t slide down a silage pit on a rainy day.

The tread section itself can be put into most shredders. Without any heavy gauge steel wire it will not prematurely wear out parts of the shredder. It is now possible to bale truck tires in an unmodified MKII tire baler, the baler itself is still able to produce quality PAS108 grade bales from passenger car tires with ease.

Source: Gradeall, Tyre & Rubber Recycling