XE4000C super large hydraulic excavator is currently the largest tonnage hydraulic excavator product in China. It is a product developed by XCMG Group with many years of research and development and independent innovation. It has a number of independent intellectual property rights. It can meet a variety of mining construction conditions, and the machine performance reaches international advanced and domestic leading levels. The design and development of this super-large hydraulic excavator integrates technology, intelligence and humanity.
First, high-end configuration, excellent performance
Cummins fully electronically controlled engine with advanced modular common rail fuel system (MCRS), ultra-high injection pressure, abundant power, and improved fuel economy;
The dual-stage turbocharging technology has fast response speed, can work without power loss at an altitude of 3353m, and improves fuel economy; the LTA low-temperature after-cooling system is used to ensure the intake air temperature and engine block life;
Adopting international advanced hydraulic technology and multiple technologies, the whole machine operates more efficiently and runs more smoothly; it can ensure the comfort and safety of the operation, reduce fuel consumption, save energy and protect the environment.
Innovative off-valve flow recirculation system. When the working device is lowered, it is lowered by its own weight. Through the flow regeneration technology, the entire machine is efficient and energy-saving;
Independent cooling system, engine and hydraulic oil cooling are controlled by independent hydraulic circuit. The electronically controlled variable hydraulic pump adjusts the cooling power in real time according to the actual temperature of the cooling object, so that the engine and hydraulic oil are at the ideal working temperature to achieve energy saving and environmental protection. The cooling automatic control system automatically adjusts the cooling air volume of the cooling system according to the temperature change of the hydraulic system to ensure the best working condition of the system.
Advanced Cummins-INTELECT control and diagnosis system can monitor the engine working condition; new intelligent electronic control system, high-efficiency energy-saving power monitoring mode, hydraulic oil cooling automatic control system, new automatic idle system, intelligent fault diagnosis system and comprehensive upgrade Electronic monitoring system to ensure the best working condition of power system and hydraulic system. The equipment is set with two power modes, which can select the best power mode according to different operating loads, so that the excavator can work efficiently under various working conditions, which greatly reduces fuel consumption.
The fault alarm diagnosis system uses GPR positioning and GPRS communication functions to realize remote services, timely understand the machine's operating status, and communicate service information for machine maintenance and repair to users; it can simultaneously diagnose electrical and hydraulic faults and display them in the form of text and fault codes. On the color LCD display, the driver can accurately understand the machine status, which is convenient for timely judgment and troubleshooting.
Second, enjoy high-quality driving
Equipped with a large, full-view, dual-seat, safe and reliable dedicated cab with FOPS function; full-screen view with large glass front windows, windows on the left and right sides and rear respectively, ensuring a wide field of vision and an all-round open operating space; Equipped with a fully automatic, high-power heating and cooling air-conditioning system to provide a more comfortable operating environment for the driver.
Multi-point support shock absorber can effectively reduce vibration and noise, provide the driver with a comfortable and spacious working environment, reduce the driver's operating fatigue; the layout of each switch and handle is reasonable, reliable and convenient; the auxiliary seat, storage The storage boxes and air-conditioning return windows are stacked, and the layout is compact, saving space.
Third, strong and efficient, durable
Adopting alloy cast wear-resistant bucket teeth from world-renowned companies to achieve the best balance between hardness and impact toughness; the unique shape design guarantees the ingenious structure design of the bucket teeth, making bucket teeth replacement more convenient and greatly improving maintainability ; Stronger penetration ability reduces the system load and is capable of the most demanding operating conditions; key parts are welded from high-strength steel plates, with high strength, high wear resistance and high efficiency.
The main body adopts a box-type structure design, and the ends are made of high-strength castings. All the shafts are equipped with bushes made of high-wear and wear-resistant materials, and have lubricating oil grooves to meet the requirements of harsh working conditions. Through finite element analysis, the box structure is optimized, which reduces the weight and improves the structural strength and working reliability.
The main body adopts a box-type design and the ends are made of cast parts. All the shafts are equipped with bushes made of wear-resistant materials and equipped with lubrication wear protection devices. The oil cylinders are positioned in a well-protected position. High reliability and strong steel structure design to meet the requirements of all mining operation environments.
The middle platform of the upper frame adopts a heavy-duty double beam box structure, which improves the rigidity of the slewing platform. Reinforced lower frame-adopts a new structural design, which improves the structural strength of the lower frame, enhances the impact resistance under heavy load conditions, and greatly improves the reliability of work;
Reliable rail chain protection device: It can prevent the crawler rail chain and track roller from being damaged and deformed. It can also prevent the lower traveling body from being overloaded due to the entry of stones, thereby reducing wear and damage.
Fourth, convenient maintenance
The centralized lubrication system, hydraulic drive and PLC-controlled automatic lubrication system can provide regular and quantitative lubrication for all pins and slewing bearings of the working device, and can also fill the track tension cylinder with grease. High degree of automation and high efficiency greatly reduce labor intensity.
Strong abrasion resistance, extending the maintenance period. The bushing design uses a patented "oil cavity" bushing, which is carburized and hardened on the surface. It has high strength and high wear resistance. The "oil cavity" can be greatly improved. Pin lubrication effect.
The channels are connected. The maintenance points of the functional areas such as the hydraulic system and the electrical system are connected by channels. Each channel is equipped with lighting. The interior of the power cabin is spacious and there are maintenance channels. There are multiple doors connected to the outside. More convenient; transportation is simple and convenient, the whole machine adopts a modular design, each functional system and component can be easily and independently assembled and disassembled, and transportation is simple and convenient.