Gradeall have developed 3 machines to deal with large OTR tyres, to provide an affordable solution to dealing with end of life OTR tyres.
OTR Sidewall Cutter
The current problem is that these huge tyres take up a lot of space and are very heavy at approximately 600Kg per tyre making them take up a lot of space, they are impossible to move by hand and costly to transport due to how few tyres will actually fit on a trailer.
Firstly the tyre is brought to the OTR tyre splitter which cuts the tyre in half along its tread section, at this stage any water or debris inside the tyre will fall out of the tyre. The tyre is now in two halves.
The second stage is to bring the halves of the tyre to the OTR Sidewall cutter, this machine cuts the sidewalls out of the tyres, isolating the bead section ( It is the thick bead section which typically causes the most problems for shredders).
The final stage is to use the OTR shear to cut the tyre down into smaller segments, the tread sections first which are the easiest to cut. This is followed by the sidewalls; the shear is sufficiently strong to cut through the bead of these tyres. Even when cut in half they are now much easier to handle.
As we learnt from our smaller sidewall cutter on truck tyres, once these Large OTR tyres have been cut using the Gradeall OTR cutting equipment it is then possible to bale them in either a MK2 or MK3 tyre baler.
In-house testing found that it was possible to deal with 6 OTR tyres per hour. While it is still a labour-intensive process it provides the market with a viable and affordable way to deal with these tyres.
Using the Gradeall OTR cutting range these large tyres can be cut down into easy to manage segments weighing under 25Kg which means they can be lifted and moved around by anyone. These segments can be baled, shredded, sent for pyrolysis or any of the further recycling methods that are available to conventional tyres.