Excavator have many types, according the walk traveling, it divided into Wheel Excavator and crawler excavator. According the ton, it divided into Small Excavator, medium-sized excavator and large excavator. 0.8- 3.5 Tons Excavator is compact excavator, 5-15 tons is medium-sized excavator; 20-36 Tons Excavator and 40 Tons Excavator is large excavator.
20-36 tons excavator adopting world advanced negative flow control system, work flow quantity adjusts automatically according to operation requirement, Construction Equipment excavator accomplishes proportional control of executive device, besides it matches with engine power, which promotes engine power`s efficiency. Crawler excavator Hydraulic System.
FREMCO is Excavator Factory adopting new control valve, provided with swing arm and bucket rod maintaining system, improves machine's use and operating safety, enhances the regeneration of arm, bucket rod potential energy movement. In one aspect, crawler excavator can save energy,in the other aspect, it can keep stable movement, increase preferential function of swing arm, which can promote the hoisting speed of swing arm. Quick speed and high efficiency. Rotary system integrates brake, cushion valve with anti-reverse valve, owning advanced performance and reliable quality.
Construction equipment excavator Power System
With 133 power and strength, international famous brand engine, reliability, dynamic property, fuel economy and emission performance all take the lead, which makes it work in high attitude area and satisfies Euro2 emission standard.