CJENG
CJENG
Description
Summary of Product
The main control valve is a core hydraulic component having a large influence on the performance, work efficiency and fuel efficiency of an excavator and is composed of very complicated internal hydraulic circuits for functioning to accurately control the operation of a hydraulic drive device, such as a pump, a motor, a cylinder and the like. Furthermore, the main control valve is core hydraulic equipment required to have high size accuracy and rigidity against high pressure because a high pressure of 350 bar or more is operated.
Technical Features
ㆍMCV Casting Design & Quality Management by 3D Casting Analysis
ㆍUsing only Material Carefully Selected for High Quality Base Iron
ㆍPressure Resisting Quality Resulting from Fine Casting Structure (350 bar or more)
ㆍImplementation of Stable Substantive Strength & Durability by CGI Structure Control Technology
ㆍExcellent Processability, Improvement of Tool Lifespan, and Reduction of Processing Time
ㆍSize Accuracy
ㆍCleanliness of Inner Flow Passage (Kolene Treatment of All Products)
Material Spec
| Material | Mechanical Properties | |||
| T.S(MPa) | Y.S(MPa) | E.L(%) | Hardness(HB) | |
| CGI 350 | 350 or more | 230 or more | 3 or more | 160 ~ 216 |
| CGI 420 | 420 or more | 270 or more | 2 or more | 170 ~ 230 |
| CGI 450 | 450 or more | 290 or more | 2 or more | 180 ~ 240 |
| FCD 500 | 500 or more | 310 or more | 2 or more | 160 ~ 230 |
Main Control Valve for Excavator
