Once the truck loaded with scrap tires arrive at the site, the truck is then weighed at the scales. The truck proceeds to the BDS processing facility where the tires are unloaded manually or via a walking floor trailer. The empty truck proceeds back to the scales where the tire weight is calculated and the weight slip is generated. Once unloaded the tires are segregated into four separate categories.
- Tires without rims and tires small enough to be shredded whole are fed with a hydraulic excavator directly into the shredder.
- Tires with rims are placed in a pile to have the rims removed. The de-rimmed tires are then placed in a pile where they are fed directly into the shredder. Steel and aluminum rims are recycled as scrap metal.
- Over-sized tires are placed in a pile to be sheared by a hydraulic excavator into pieces small enough to be fed into the shredder. These pieces are fed directly into the shredder.
Once the tires are shredded the shreds are conveyed over a classifier that classifies the shreds into 6' minus and 6' & over.
The 6' & over are recirculated back into the shredder and continue in this process until the shreds are small enough to be classified as a Type 'B' chip. The 6' minus shreds are then conveyed into a finished Type “B” chip stockpile.
The Type 'B' chip is used in the construction of new landfill cells as a drainage layer allowing leachate to drain to the collection pipes and as a protective layer protecting the landfill liner from being punctured by landfilled waste.
The Type 'B' chip is also used in civil engineering applications. Such projects include; light - weight fill material for road construction and bridge abutments.