Hyundai Construction Equipment conceptos & prototipos

Hyundai's first electrically powered compact excavator to be introduced to the market. The R18E uses a Li-ION battery (LFP type), generating a power capacity of 19.6 hp (14.6 kW). Its battery charger is rated at 3 kW, with a free-voltage range of 100-230 v AC.

With an operating weight of 3,800 lb (1,725 kg), digging depth of 7 ft 11 in (2,405 mm), and dump height of 8 ft 10 in (2,680 mm), the R18E is powered by an induction-type motor, with a one-hour current rating of 225 amps.

Digital control is provided through a microcontroller. It can operate up to eight hours on a full charge and can be fully recharged in five hours. As an electrically powered machine, the R18E produces no carbon emissions, and operates at 70.1 dB of sound.

Powered by Cummins BM4.4E flexible battery modules (5.9 hp, or 4.4 kW, each), the Hyundai R35E excavator prototype is designed to support a full work shift and charge in less than three hours.

The excavator contains eight BM4.4E modules connected in a series configuration to provide a total energy of 47 hp (35 kW).

Based on Hyundai's Robex series, the 18E is powered by a 20.7-kWh lithium-ion battery pack paired with a 13-kW (27-kW peak) electric motor.

Recharging time is just over five hours when using a 220V supply.

The excavator’s operating weight is 1,863 kg (4,107 lb) with a canopy, or 2,030 kg (4,475 lb) for the machines with a full cab. Bucket breakout force is rated at 15.1 kN with a 0.04-m3 bucket. Dipper arm tearout force is rated at 9.4 kN. It is equipped with an 1,800-mm (5.9-ft) monoboom and a 960-mm (3.1-ft) dipper arm. The maximum digging depth is 2,405 mm (7.8 ft) and the machine has a digging reach of 4,110 mm (13.4 ft).