Excavator hydraulic quick-change connectors are divided into two types: hydraulically driven and mechanical. Hydraulically driven quick-change connectors use the excavator's own oil pump sub-control valve and hydraulically driven cylinder to achieve the need to replace working parts. They have the advantages of high strength and high stability, but they require the modification of hydraulic pipelines and systems, and the cost is relatively high. Mechanical quick-change connectors do not require the modification of excavator pipelines and hydraulic systems, and are simpler to use, but the operation is more complicated.
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