OTR Tyre Recycling for Canadian Mining: Oil Sands and Northern Operations

By:     Conor Murphy

Canada’s Mining Tyre Challenge: Scale, Remoteness, and Cold

Canada’s mining sector generates OTR tyre waste at a scale that places it among the most demanding tyre recycling challenges in the world, combining the extreme tyre volumes of major open-pit and oil sands mining with the logistical difficulty of operating in some of the most remote and climatically challenging environments on the planet.

The Alberta oil sands operations around Fort McMurray represent perhaps the most concentrated single source of haul truck OTR tyre waste in Canada. The Athabasca oil sands, operated by producers including Syncrude, Suncor, CNRL, and Imperial Oil, use massive fleets of haul trucks to move bituminous sand from the open-pit mining faces to processing facilities. These trucks, predominantly in the Caterpillar 797 and Komatsu 960E class, run on the largest OTR tyres commercially produced. A fleet of several hundred such trucks at a single operation generates hundreds of worn and failed tyres per year, each weighing several thousand kilograms.

Beyond the oil sands, Canada’s broader mining sector generates significant OTR tyre waste from hard rock metal mining in Ontario, Quebec, and British Columbia; potash mining in Saskatchewan; coal mining in British Columbia and Alberta; nickel and copper mining in Sudbury and the Abitibi region; and diamond mining in the Northwest Territories and Nunavut. Each of these operations presents its own specific combination of tyre size, volume, climate, and logistics challenges.

Gradeall International manufactures OTR tyre processing equipment specifically designed for the scale and structural demands of the mining sector tyre processing. The OTR tyre sidewall cutter, OTR tyre splitter, and the full tyre recycling equipment range are available for Canadian mining operations, with nearly 40 years of manufacturing experience and equipment operating in over 100 countries, including major cold-climate mining nations.

The Alberta Oil Sands: A Tyre Recycling Challenge Without Parallel

The scale of OTR tyre generation at Alberta oil sands operations is extraordinary. A large integrated oil sands mine and upgrading operation employing several hundred haul trucks generates tyre waste continuously across three-shift, year-round operations. The tyres themselves are in the 57-inch to 63-inch rim diameter range, weighing 3,000 to 5,500 kg each. A single tyre change event produces several tonnes of rubber waste.

Storage challenge at the site. Whole intact OTR tyres from the largest haul trucks occupy enormous storage volumes. A modest accumulation of 50 such tyres represents hundreds of tonnes of material occupying the storage footprint of a substantial warehouse. Oil sands operations cannot simply accumulate whole tyres indefinitely; regulatory, fire safety, and operational space constraints require a management approach that keeps tyre inventory under control.

Winter processing conditions. Fort McMurray experiences severe winter conditions, with temperatures regularly falling below -30°C and occasionally reaching -40°C. OTR tyres stored outdoors at these temperatures become extremely stiff and brittle; moving and processing frozen OTR tyres requires equipment and procedures designed for cold conditions. The hydraulic systems of processing equipment must be specified for cold climate operation as described in Gradeall’s Canadian winter conditions article; the processing facility needs to be heated to allow effective operation.

Transport economics in remote northern Alberta. Fort McMurray is approximately 450 km north of Edmonton, connected by the only all-weather highway through boreal forest terrain. Transport costs for bulk material from Fort McMurray to southern Alberta processing facilities are high. On-site volume reduction through sidewall cutting and splitting before transport transforms the economics: sections of cut OTR tyres pack far more efficiently onto transport vehicles than whole intact tyres, reducing the transport cost per tonne of rubber moved south for crumb rubber processing.

On-Site Processing at Oil Sands Operations

The combination of large tyre volumes, remote location, and severe climate makes on-site OTR tyre processing equipment the operationally logical solution for Alberta oil sands operations. Rather than accumulating whole tyres and arranging periodic collection of intact units, on-site processing converts tyres to manageable sections as they are removed from vehicles, maintaining controlled inventory and enabling efficient transport of processed sections.

Gradeall’s OTR tyre sidewall cutter in oil sands deployment. The OTR tyre sidewall cutter removes the sidewalls from large OTR tyres, separating the more flexible sidewall sections from the heavily steel-reinforced tread band. For oil sands haul truck tyres, the cutting force requirements are at the high end of the OTR tyre processing range; equipment specification must be confirmed against the specific tyre sizes in the mine’s fleet before purchase.

Deploying the OTR sidewall cutter at an oil sands operation requires installation in a heated facility to allow effective cold climate operation, power supply from the site’s electrical infrastructure, and integration into the mine’s safety management system, including HAZID assessment for the specific site conditions.

Gradeall’s OTR tyre splitter. Following sidewall cutting, the OTR tyre splitter reduces the tread band section into pieces suitable for stacking, transport, and downstream shredding. The combination of sidewall cutting and splitting transforms each haul truck tyre from an unmanageable 5,000 kg toroidal object into a set of flat sections that handle efficiently in the mine’s material logistics system.

Integration with mine logistics. OTR tyre processing at a mine site needs to integrate with the mine’s existing materials handling and logistics systems. Tyre change events occur at maintenance bays; removed tyres need to be transported from the maintenance bay to the processing equipment location. Processed sections need to be transported to a staging area for collection. The mine’s internal haul system or dedicated material handling equipment serves these internal transport functions; the processing equipment sits within this logistics flow rather than replacing it.

Hard Rock Mining Operations: Ontario, Quebec, and British Columbia

Canada’s hard rock metal mining sector presents OTR tyre challenges that differ from the oil sands in tyre size, mine layout, and climate profile.

Ontario’s Sudbury Basin. The nickel and copper mining operations in Sudbury represent one of the world’s most significant metal mining districts. Surface operations use haul trucks with OTR tyres in the 33-inch to 49-inch range; underground operations use LHD machines and underground trucks with smaller but still substantial OTR fitments. The Sudbury area’s climate is severe by southern Ontario standards but less extreme than northern Alberta.

Quebec’s mining corridor. The Abitibi-Témiscamingue region in northwestern Quebec and the Côte-Nord mining district host gold, copper, zinc, and iron ore operations generating OTR tyre waste in a climate that includes severe winters with sustained temperatures below -20°C. French language regulatory requirements apply to environmental compliance documentation in Quebec operations.

British Columbia’s metal mines. BC’s copper, gold, and molybdenum mines, including major operations in the Highland Valley and Tahltan Territory regions, generate OTR tyre waste in mountainous terrain with cold winters at elevation. BC’s proximity to the Port of Vancouver provides relatively better logistics for the transport of processed tyre material to Pacific Rim markets than the landlocked prairie operations.

Northern Territories: Diamond Mines and Arctic Operations

Canada’s diamond mining operations in the Northwest Territories and Nunavut represent the most extreme cold climate tyre recycling challenge in the country. The Diavik and Gahcho Kué mines in the NWT and the Snap Lake operation operate in subarctic and arctic conditions where winter temperatures can reach -45°C and access is limited to ice roads for part of the year.

OTR tyre management at these remote arctic operations is constrained by the ice road logistics window, which typically allows heavy equipment and bulk materials transport for a limited number of weeks per year when winter roads are passable. Equipment and materials that arrive by ice road must be planned well in advance; processed tyre sections that leave by ice road must be staged for the transport window.

On-site processing with Gradeall’s OTR equipment allows tyre sections to be accumulated efficiently throughout the year for transport out during the ice road season, rather than storing whole intact tyres that would require far more logistics capacity per tonne of rubber moved.

The Provincial Programme Context for Canadian Mining OTR Tyres

Alberta’s ARMA programme covers OTR tyres, including the large categories generated by oil sands operations, with handling fees and processor payments structured to reflect the higher per-unit costs of OTR tyre management. Mining operations in Alberta should confirm their ARMA obligations for OTR tyre categories with the authority.

Ontario’s RPRA framework covers OTR tyres; mining operations in Ontario should confirm their programme obligations with RPRA. BC’s TSBC programme similarly covers OTR categories; BC mining operations should engage with TSBC.

For very large oil sands OTR tyres, the PCTE (passenger car tyre equivalent) conversion factors used to calculate programme payments are high, reflecting the rubber mass of these tyres. Tyre processors handling oil sands OTR tyre sections should confirm PCTE conversion factors and payment rates with the relevant provincial programme before building financial projections.

“The Canadian mining tyre challenge is one of the most technically demanding in the world,” says Conor Murphy, Director of Gradeall International. “The combination of extreme tyre size, extreme cold, and extreme remoteness requires equipment that is specifically rated for those conditions and operational planning that accounts for every stage of the logistics chain from tyre removal to final processing. We’ve been working with Canadian mining operations on these challenges for many years, and our OTR equipment is designed for exactly these conditions.”

Contact Gradeall International for OTR tyre processing equipment for Canadian mining operations, including oil sands and northern deployments.

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