Hyundai Construction Equipment Americas Inc., an earthmoving and material-handling equipment manufacturer, recently unveiled its R220LC-9 HI-POSS excavator. This concept model showcases Hyundai’s next-generation power system providing improved fuel consumption and controllability by the optimal control of electronic pumps and valves. 

The R220LC-9 HI-POSS (Hyundai Intelligent Power Optimal Sharing and Energy Saving) system is an innovative system that maximizes energy utilization through an electronically controlled pump and valve whereas a conventional hydraulic excavator utilizes a spool-operated valve. The result of this state-of-the-art feature is more precise and effective machine operation leading to improved fuel consumption and operability. 

Hyundai’s HI-POSS system reduces energy consumption by reducing waste flow, such as relief flow, through optimal flow distribution and recycling of waste energy through an accumulator. 

This technology allows for more efficient swing start, swing stop, boom down and main relief flow, which is estimated to provide operators with an improved fuel consumption ratio of 20 percent. 

The HI-POSS system’s use of electronically controlled valves enables independent flow control and allows for tuning tailored to specific applications and operators without the need for installation of additional components. The HI-POSS system allows for the adjustment of the speed ratio between different attachments and matching between joystick signal and single operation speed from a computer or cluster with the appropriate software. 

Additionally, Hyundai’s HI-POSS system provides operators with self-diagnosis and easy maintenance through this same technology. 

Hyundai’s R220LC-9 HI-POSS excavator boasts a 143 hp Cummins Tier 3 QSB6.7 engine. This model has an operating weight of 50,520 pounds, a maximum dig depth of 22 feet, 1 inch and a bucket breakout force of 31,830 pounds. 

Hyundai Construction Equipment Americas Inc. offers quality earthmoving and material-handling equipment, including hydraulic excavators, wheel loaders, skid steer loaders and electric and diesel forklifts. They also manufacture internal combustion cushion and internal combustion pneumatic forklifts. 

Hyundai Heavy Industries (HHI), Hyundai Construction Equipment’s parent company has instilled its philosophy: Quality before and after the sale throughout all divisions. HHI invests heavily in construction equipment R&D and has state-of-the-art production facilities around the world. Hyundai is ISO 9001 certified and is a perennial winner of numerous Korean construction-equipment design awards. 

For more information, visit www.hceamericas.com.