HYUNDAI Construction Equipment has unveiled a completely new line of A-Series wheeled excavators, powered by EU Stage V diesel engines.
The four machines, with operating weights of 14–23 tonnes, feature low-emission Cummins diesel engines with a combined after-treatment system and no requirement for exhaust gas recirculation.
The revised line-up starts with the HW140A, weighing in at 14,900 kg with a monoboom and 15,860 kg with a two-piece main boom. This machine shares much of its undercarriage and upper structure with the HW160A, with weights of 17,580 kg/18,390 kg. A compact-radius HW170ACR is offered exclusively with a two-piece boom, at 18,810 kg, and the range is completed with the HW210A, at 22,270/23,665 kg.
The HW140A, HW160A and HW170ACR are powered by a 4.5-litre Cummins B4.5 diesel engine, replacing the larger 6.7-litre engine in the previous generation of machines. Using a wastegate turbocharger, this compact engine has a Flex-Module two-can exhaust system, comprising a diesel oxidation catalyst (DOC), diesel particulate filter (DPF) and selective catalytic reduction (SCR).
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Despite the reduction in engine capacity, the new machines benefit from an increased output, with the HW140A, HW160A and HW170ACR now all delivering 129 kW (173 hp), up from 117 kW (156 hp) on the previous generation HW140. This drives the machine through a Rexroth load-sensing hydraulic system, with load-independent flow control for consistent machine operating speed and improved controllability for the operator.
The three machines feature a redesigned stacked cooling module. A hydraulically driven reversible cooling fan is now standard.
On the HW210A, the boom mounting centre has been moved by 10 mm towards the right-hand side of the machine to improve the gap between the boom cylinder and the cab. The rear swing radius has been reduced from 2,850 mm to 2,740mm, making the machine more manoeuvrable on site and reducing the risk of striking the counterweight when slewing.
Peter Sebold, product specialist at Hyundai Construction Equipment Europe, commented: “The new range of wheeled excavators from Hyundai offers plenty of features for customers working in infrastructure and civil engineering. The revised boom geometry, in combination with LUDV load-sensing hydraulics, provides Hyundai’s new wheeled excavators with outstanding performance in multi-function operation, smooth controllability and the necessary stability for maximum productivity. Hyundai is establishing itself in a growing number of market sectors, by listening to customer feedback and responding to their requirements.”
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