Used medium XE270DK crawler mounted excavator

Product Introduction

The XE270DK excavator is a medium-sized excavator produced by XCMG. The chassis and four-wheel area have been strengthened and upgraded; the new cab with comfortable and safe handling and the new appearance of the whole machine; the fully optimized new hydraulic system and power matching mode have high operating efficiency; Large bucket capacity, combined with strong walking force and digging force, increases the workload; has its own patented high-reliability working device.

Product Features

1. The Cummins engine tailored for excavators meets the National III emission standards; low speed and high torque, low fuel consumption; rear gear chamber, low noise, low vibration; good altitude adaptability, can be used at an altitude of 5,000 meters. The new generation of Japan Kawasaki key hydraulic components, combined with the latest research results, has higher efficiency, more precise control, and higher quality reliability, ensuring long-term reliable strong digging force and excellent operating efficiency; a new generation of microcomputer control technology, precise control The fuel injection time and fuel injection volume of the engine make the engine always run in the best economic zone, ensuring that the machine always maintains the best efficiency and economy under various operating conditions.

2. Fully optimized new hydraulic system, new hydraulic main pump, the displacement is 12% higher than that of the previous generation. Strong walking force and digging force increase the workload. Replaced with a new type of travel motor, the maximum traction increased from 194 to 206, an increase of 6%. The bucket is increased from 1.2m3 to 1.3m3, increasing the workload.

3. The shaft diameter of the supporting sprocket is increased by 22%, and the overall relative size is increased, which improves the service life of the supporting sprocket. The thickness of the sprocket is increased, and the overall relative size is increased, which improves the service life of the sprocket. The shaft diameter of the supporting wheel is increased by 8%, and the overall relative size is increased, which improves the service life of the supporting wheel. The tensioning force of the tensioning device is increased by 8%, which effectively prevents the track from jumping teeth and derailing. The shaft diameter of the guide wheel is increased by 15%, and the overall relative size is increased, which improves the service life of the guide. The length of the track chain track is increased from 190mm to 203mm, and the height is increased by 8.5%, which improves the service life of the track.

4. Add ribs to the guide seat to prevent the guide seat from opening and deformation, and improve the durability of the chain rail and guide wheel. Extend the inner protrusion of the guide seat to prevent the chain rail from detaching from the guide wheel. The curved plate of the longitudinal beam is changed from a “mountain” shape to a “half mountain” shape, the thickness of the bent plate is increased by 20%, the internal ribs of the longitudinal beam are strengthened, and the overall strength of the longitudinal beam is improved. The bending plate of the driving seat has been changed from the joint welding type to the integral type, and the durability of the driving seat has been improved. Strengthen the X-beam part, and greatly increase the strength of the end face by increasing the size and thickness of the box beam and improving the structure. The cover plate is increased by 2mm, and the rib plate is increased by 6mm.

5. The root of the front end of the stick is filled with grease in the middle to improve reliability. A new type of T-sleeve bearing is used at the joint of the stick and bucket to improve the wear resistance of the cast-type single link, which fully optimizes the stress distribution and improves the reliability. The root of the boom adopts a copper sleeve, and other bearings adopt oil-cavity bearings. The root of the boom adopts a dovetail design, which reduces stress concentration and improves digging performance. It also improves wear resistance. Further enhance the strength of lug plate and arc plate to improve service life.

6. The advanced XCMG excavator intelligent management system adopts CAN bus communication and Internet of Things technology, integrates the main control system, engine ECM, monitoring system, control panel, GPS cloud control system and on-site diagnosis system to realize digital sharing of machine information and improve Product intelligence level. The convenient mobile APP micro-service can grasp the location, operation status, working hours, fuel consumption and maintenance cycle of the excavator anytime and anywhere. The autonomous controller collects the altitude of the vehicle and the intake pressure of the engine, automatically determines and determines the database, and prompts the operator to select the plateau mode on the display. Intelligently match the power of the hydraulic pump and the engine, so as to ensure the flow output of the pump, reduce the speed ratio of the engine, prevent black smoke and brake the car, and ensure the working efficiency of the excavator.