Russian manufacturer KamAZ has launched the first of a new range of dump trucks for the quarrying and mining sectors.
The KaMAZ-65805 Atlant dump truck model features an Allison 4700 fully automatic transmission. It is designed for the transportation of rock and ore material in medium and small quarries, and is capable of being converted into an autonomous vehicle.
The Allison 4700 fully automatic transmission includes hydraulic retarder, and progressive steering, which KamAZ says provides the new truck with superior maneouverability, robustness and safety.
The KamAZ-65805 Atlant truck range will include vehicles with a load capacity of 45 to 70 tons and with a 10×6 chassis. KamAz says the Allison fully automatic transmission was chosen as it can significantly improve performance in this load capacity class.
The KamAZ-65805 is equipped with a new 500hp 12-litre inline KamAZ 910 diesel engine. The Allison 4700 transmission’s integrated hydraulic retarder was specified to provide greater brake system service life and to address the challenge – particularly in quarries and mountainous areas – of slowing the truck effectively without overloading the brake system. Another safety feature of the automatic transmission is that it virtually eliminates rollback when driving uphill.
“We design new haul trucks with the market needs in mind by thoroughly studying the requirements of end users for this vehicle class,” said Sergey Nazarenko, chief designer of innovative vehicles at the KamAZ Science and Technology Centre. “As one of the key vehicle components, the transmission is subject to increased requirements in terms of reliability, durability and manufacturability. These were the major factors for selecting a transmission for the new KamAZ Atlant. We opted for Allison Transmission.”
Allison Automatics also features the patented Continuous Power Technology, which is designed to provide more efficient power transfer to the wheels and improved manoeuverability, which in turn, increases the amount of work that can be done, bringing greater operational efficiency and profitability. The Allison 4700 transmission can be fitted with a Power Take-Off (PTO) mechanism to power various equipment.
The typical quarry vehicle scenario involves frequent shuttle trips over short and medium distances with a stop in the quarry, with both the engine and all transmission components bearing heavy loads. The Allison transmission is designed to ensure optimal engine operation, increasing its life and thus the profitability of the dump truck. KamAz says the automatic transmission also allows the driver to fully focus on driving without being distracted by shifting into the right gear.
