In Nigeria's harsh mining environment, tire durability directly affects mining efficiency and operational costs. This case study introduces the application of KUNLUN 18.00R33 tire KT709 on local heavy-duty dump trucks, highlighting why this radial OTR tire was chosen to address extreme abrasion, cutting, and heat buildup challenges common in West African open-pit operations.
I. Client Background
The client is a large local mining enterprise operating multiple open-pit mines across Nigeria. Its fleet consists of dozens of heavy-duty dump trucks, each running 18 hours daily on rugged, gravelly haul roads with sharp laterite stones and high ambient temperatures. Previously, the fleet suffered from frequent sidewall cuts, rapid tread wear, and premature failures, with average tire life barely reaching 40,000 km. This led to exorbitant replacement costs, frequent work stoppages, and reduced monthly output. A reliable dump truck tyre with superior cut resistance and heat tolerance was urgently needed to sustain production targets.
II. KUNLUN KT709 18.00R33 Tire Solution & Performance Parameters
In early 2025, the client fully adopted the KUNLUN 18.00R33 tire KT709(REM9) – an all-steel radial OTR tire with E4-level mining specification. This model incorporates:
Special cut-resistant rubber compound for superior protection against sharp stones
Non-directional central rib tread pattern for enhanced traction on steep and slippery haul roads
Reinforced steel-belted casing to withstand heavy shock loads and impact forces
Advanced heat dissipation channel design to effectively reduce internal temperature buildup during long hauls
After 48,000 km of field operation, the 18.00R33 tire showed 36mm remaining tread from an initial 54.6mm depth, projecting a total service mileage of 95,000 km – more than double the previous brand's performance. KT709 Key parameters:
Standard rim: 13.00/2.5
Section width: 508mm
Overall diameter: 1854mm
Maximum load: 21,200kg
Tubeless design with two-star rating for extra durability
III. Client Feedback
The fleet supervisor reported that KUNLUN KT709 tires have dramatically reduced replacement frequency and unplanned downtime. As a dump truck tyre designed for 100-ton payloads, the KT709 delivers strong traction on steep ramps and excellent impact absorption on rocky surfaces, ensuring safe and stable operation even during rainy season mud conditions. Cost-per-kilometer calculations show a 35% saving compared to previous tire brands, directly improving the mine's bottom line.
IV. Future Cooperation
Impressed by the field results, the client plans to standardize KUNLUN tires across all haul trucks, establish a data-driven tire rotation and replacement schedule based on actual mileage, and expand usage to wheel loaders and excavators. This successful deployment has strengthened KUNLUN as a preferred OTR tyre supplier in West Africa, with the client already placing bulk orders for the next quarter. Both parties are also discussing collaborative development of customized compound formulations for even harsher future mining projects.
