·Excellent performance

·Engine automatic idling device 
Sunward is the first manufacturer who successfully developed the engine automatic idling device for excavator.

·Swing Boom
Big swing angle greatly improves the machine's application.

·Dynamic System
Classic Perkins1104C-44T diesel engine has optimum power reservation coefficient, strong power and high reliability.

·High Performance Hydraulic System
Japanese KPM three pumps hydraulic system is a combination of advanced technology, credible performance, system features with swing priority, boom priority, straight travel, boom conflux, arm conflux, auxiliary flow adjustable, boom lock and arm lockfunction, which improve work efficiency and  allow the excellent operation performance.