Terex's O&K is the first German excavator manufacturer to be certified to DIN EN ISO 9001. O&K hydraulic excavators have been successfully operated on every continent in the world, and their product range is complete, providing suitable equipment regardless of the working conditions. O&K's performance in China is even more remarkable! The main features of O&K excavators are: "Powerful triangle" work device, this is O&K's patented technology PMS: "Pump Management System" (PMS: Pump Management System), which is an electro-hydraulic servo-pump load computer adjustment system that compares the actual parameters of the continuously measured engine and hydraulic system with the data set by the computer. The excellent performance adjusts the output of the pump to make the most efficient use of the power of the engine and to monitor, store, display and diagnose faults in the various data in real time. “Double independent” hydraulic oil cooling system: O&K has always been a world leader in hydraulic oil cooling technology for hydraulic excavators. Its patented technology “Double Independent Hydraulic Oil Cooling System” allows the hot return oil from the oil return chamber of the tank to reach the cooler directly, which is separated from the working state of the excavator, ensuring that the hydraulic oil is still cooled when the cooler is idle. The working efficiency of the cooling system is greatly improved, and the system is maintained at a stable ideal temperature state. Advanced full hydraulic crawler automatic tensioning device Fully automatic centralized lubrication system Hydraulic cylinders use O&K's patented "last pass buffer" At present, O&K hydraulic excavators mainly have the following models: RH40-E: An important feature of this 100-ton hydraulic excavator is to increase productivity by speeding up the work cycle. Currently, more than 400 R40s are working all over the world. In China, it participated in the construction of the Xiaolangdi Water Control Project of the Yellow River and played a powerful role in the Qingjiang Shuibuya Water Conservancy Project. RH90-C: This 170-ton excavator features O&K's unique “powerful triangle” mechanism, which ensures accurate and rapid operation of the machine, and helps protect the machine and reduce driver fatigue, reducing operating costs and increasing productivity. . Currently, there are more than 270 120-180 ton O&K hydraulic excavators operating around the world. RH120-E: This excavator can fill 85-120 tons of dump trucks with only 4 shovel in 1.5 minutes. The utilization rate is over 90%, and it has the best sales performance in the same class. Currently, there are more than 220 of these excavators serving mines around the world. RH170: This excavator represents the most advanced excavator technology. The core part is O&K “Pump Management System” (PMS) and Electro-Hydraulic Servo Control System (EHSC), which further improves reliability. RH200: This 480-ton excavator can withstand heavy, high-load mining operations every day. It has completed more than 1.5 million hours of work in mines around the world, providing consistently stable productivity and unmatched utilization. At present, more than 80 RH200s are working in large mines around the world. RH400: This is the world's largest hydraulic excavator of 920 tons manufactured by O&K. 46-52 cubic meters of bucket capacity, only 3 shovel can be filled with 240 tons of dump trucks. The load per hour exceeds 9,000 tons, and the average load per hour exceeds 5,760 tons. | 
