泵送混凝土是单位的主要工作,液压帮助完成。但混凝土浇注成功只发生如果卡车稳稳地站在地上。繁荣可能达到100英尺或更多。防止装置引爆,一套支架接触比大多数起重机进一步从卡车上。这些长臂支架通常需要伸缩气缸延长他们后来把他们带走。高品质、先导式止回阀保持down-cylinders锁定攻击地面。运营商的远程吊坠给他们前面描述的泵送率的控制,并控制好各部分的繁荣以及摇动。配置了一个单独的开环活塞泵load-sensing(流补偿)控制器,这限制了泵压力利润率高于最繁荣的功能要求。泵流路径这个电路开环槽(罐),但是流量和压力的控制是闭环的。electro-proportional阀内的负载换向阀感觉网络银行发送最高函数回泵压力补偿器/控制器进行不断调整。 Pre-spool compensators in each section of the valve bank help to keep flow steady to lighter loaded boom cylinders already in motion, as the pump up-strokes in response to a heavier loaded boom section. This well-designed and tuned system gives the operator the ability to make smooth motions with the boom to move the placement hose to where it is needed during a pour, without wasting extra energy.