Liebherr's R964C is widely used in China's mining fields, such as coal mines, metal mines, cement mines and other industries. As the main shovel equipment for mine production, the R964C has won high recognition and favor from customers with its high stability, high productivity and low fuel consumption. As early as the end of 2014, Shanghai Bauma Exhibition - Libo Haier's latest crawler excavator for the Chinese market - R966 officially unveiled, it is the R964 C replacement model, based on the original organic type for comfort , production efficiency and profitability have been comprehensively improved.
The 70-ton R966 crawler excavator is designed to be rugged and designed for demanding operations such as quarrying, mining and generous earthmoving. The R966 has been successfully used in the European market for many years before it was introduced to the Chinese market. At present, Liebherr R966C has been sold and delivered to domestic metal mines, cement mines and other industries such as Benxi Steel and China Resources Cement.
The Liebherr R966 is an upgraded version of the R964C. The control system has been upgraded from analog control to digital control, continuing Liebherr's consistent high performance and reliability, while at the same time, in terms of structural strength, production efficiency, exhaust emissions, There are new improvements in maintainability and comfort. Particularly commendable is that in the serious homogenization of excavators today, the overall design and layout of the aircraft is quite different, different from other brands of the same class, and there are some similarities with excavators above 100 tons.
In terms of power
The Liebherr R966 is equipped with Liebherr's own D9508 engine. D9508 is a V-type 8-cylinder engine with a displacement of 16.2 L. It adopts an electronically controlled high-pressure common rail fuel injection system, which can meet the US Environmental Protection Agency Tier 3 / EU Stage IIIA emission standards, and can also meet the national III new implementation in China. Emission regulations. On the Liebherr R966C, the D9508 has a power of 320 kW and is connected to the excavator control system using the CAN-BUS bus. The engine output is regulated according to the load demand and has the function of automatic idle when idle.
The Liebherr R966 cooling system is very characteristic. It consists of two cooling modules juxtaposed on the right side, including engine coolant radiator, hydraulic oil radiator, intercooler, gearbox lubricant radiator, fuel cooler. And air conditioning evaporator. This design tries to avoid multiple layers of heat sinks, which makes the heat dissipation better. Each cooling module has a hydraulic motor driven fan. At the same time, the cooling fan motor is in a separate closed circuit, driven by a separate hydraulic pump, and the control system controls the operation of the fan based on the data from multiple temperature sensors.
The fuel tank, hydraulic tank and hydraulic pump of the R966C are arranged on the left side. The hydraulic system is different from the same class. It uses a separate closed circuit. The swing motor is driven by a separate rotary pump. This design is often only found on excavators above 100 tons. The advantage is that the rotation function is prioritized, the movement is flexible, the productivity is improved, and the engine power can be fully utilized. In this way, plus the dual main pump, the heat-dissipating circuit hydraulic pump mentioned above and the pilot pump, there are a total of five hydraulic pumps of this type. In addition, the R966's boom and stick cylinders are equipped with safety check valves and integrated advanced regenerative functions. During the pressureless lowering of the boom or stick, the hydraulic oil can be routed through the high pressure chamber directly into the low pressure chamber to avoid passing through the main Control the valve to reduce energy loss and reduce cycle time. At the same time, the cylinder also has a terminal buffer function to extend the service life.
In order to cope with the harsh working conditions, the R966's boom and stick are made of steel castings and welded with high-strength steel plates for impact resistance and longer service life. According to the user's working conditions, the R966 can be equipped with working devices such as positive, backhoe and extension arm. The bucket capacity is from 4 cubic meters to 4.5 cubic meters.
The R966 redesigned the driver's quiet and comfortable cab with a 10% increase in cab area, plenty of space, good visibility, easy operation and high safety. Equipped with a 7-inch high-definition color touch screen, it is convenient for the driver to monitor and select the appropriate working mode, function and parameters. The image of the rear view camera is also displayed on this screen.
In terms of security protection
The R966C's windshield and sunroof are equipped with impact-resistant safety glass, and can be equipped with various protection devices and systems for quarrying. The rearview camera is standard on this new crawler excavator. Various protection devices and systems for quarrying operations can be added, such as FOPS for landing gear protection, ROPS for anti-roll protection, piston protection cover for joystick and bucket cylinder, and lubrication hose and swivel safety mask.
In order to facilitate routine maintenance and repair work, the R966 has a non-slip maintenance walkway on the left and right sides of the board and the platform in the engine room, which also facilitates the driver's access to the cab. In addition, the R966 is equipped with Liebherr's automatic centralized lubrication system, which requires the driver to manually maintain a small number of pins on the bucket and linkage.
The R966 is produced at Liebherr's Colmar plant in the Alsace region of France. All key components are manufactured at Liebherr's plants throughout Europe. The quality of the products is guaranteed, and the core components are compatible with the R964C. After-sales service is more reliable. Liebherr always insists on independent research and development of core components, which makes the matching of the whole machine better and ensures the economical fuel consumption. Compared with other brands of the same level, R966 fuel consumption can be reduced by about 20%. Advanced design, outstanding performance, reliable quality and perfect service make this model able to cope with the harsh working environment and win in the fierce competition. (This article is from Liebherr)
Vibrating Graphite Block,High Purity Graphite Block,High Density Graphite Block,Natural Purity Graphite Block
CARBONS TECH&CREATION(HENAN) INDUSTRY CO.,LTD , https://www.kycarbon.com