Performance characteristics：KN8-25 excavator loader (commonly known as "busy at both ends") is a multi-functional mechanical equipment that can be used with a variety of accessories to carry out excavation, loading, road breaking, site leveling, trench digging and other operations. It can be widely used in construction operations in buildings, mines, highways and other engineering occasions.
The main performance mechanism features are as follows:
The cab adopts ergonomic design, with reasonable overall layout and comfortable operation. The cab is equipped with a variety of practical configurations such as file bags, tool boxes, radios, interior ceiling lights, safety hammers, fire extinguishers, cigarette lighters, and tea cup holders, which not only meet the basic work needs of drivers, but also ensure
The operation comfort of the driver shall be certified, and the working efficiency shall be improved.
The cab seat can be rotated forward and backward to facilitate quick conversion during loading and excavation.
The cab meets the safety certification of FOPS/ROPS (rollover/falling object prevention) to ensure the driver's safety protection function.
Deutz BF4M2012 series turbocharged diesel engine is adopted, which has good power performance, large torque reserve, good economy, low fuel consumption and oil consumption. It is a high-quality product specially designed and manufactured for the working conditions of construction machinery and has been verified. The engine emissions meet China's Phase III standards.
The mechanical gearshift gearbox of Italian famous brand is adopted, with 4 gears at the front and back, and the maximum speed can reach more than 40km/h; It has the function of two drive and four drive switching. It is forced to switch to the two drive mode when shifting to the fourth gear to improve safety.
3. Drive axle
Multi disc wet brake axle of Italian famous brand is adopted. The axle is simple in structure and compact in design. The internal system is free from external pollution. The brake pad has good heat dissipation when immersed in gear oil. The fully enclosed design can realize maintenance free.
（3） Hydraulic system
The unique dual pump confluence hydraulic system is adopted. The dual pump confluence system is composed of two gear pumps and throttling multi way valves. When working under light load, dual pumps are used to supply oil to ensure large flow, reduce the working cycle time and improve the working efficiency; In case of heavy load operation, one pump can be unloaded automatically to work with high pressure and small flow to ensure the normal operation of the engine under high load. When the working hydraulic system such as the transfer field does not work, one pump can be unloaded manually, and the single pump can work to meet the steering demand, reduce energy consumption and reduce heating.
（4） Brake system
The service brake adopts the rear axle wet brake, the brake valve imported from Italy, and the double brake pedals can realize the one-sided braking of the whole machine, and the turning radius is smaller; The parking brake can also be used as emergency brake and parking brake. It is directly pulled by the brake flexible shaft, which is easy to install and maintain.
（5） Working device
The loading working device adopts an eight link mechanism. The structure and hinge point are optimally designed, and the digging force can reach 66kN. The bucket can be mechanically and automatically leveled, and the bucket angle change is controlled within 1.5 ° during lifting, with excellent translational performance. The loading device can also realize that the bucket unloading angle is greater than 45 ° at any height, and the unloading is cleaner.
The excavation working device adopts the straight arm form, and the excavation rotation range is 160 °, with a wide range. The oil cylinder at the digging end increases the cushioning, improves the comfort and accuracy of operation, effectively reduces the hydraulic impact during the movement of the oil cylinder, and improves the service life of the oil cylinder.
（6） Ease of maintenance
Various maintenance points such as oil level inspection, oil filling and lubricating grease filling are arranged at accessible positions, and the maintenance and replacement of air filter element and electrical equipment can be easily carried out.
With a split forward opening hood, the upper hood can be opened at an angle of 85 °, and the side hood can be quickly disassembled without any tools, so that the engine, cooling system, etc. can be completely exposed, and inspection and maintenance can be easily realized.
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