回转机构由液压马达及蜗轮蜗杆减速器组成。
The slewing mechanism consists of hydraulic motor and worm speed reducer.
随车起重机对回转式减速器的要求性能很高，要求产品具有严格的安全性和可靠性。
The requirements of slewing drive used in truck crane is rather high, it should have significant security and reliability.
采用摆线针轮减速器，回转扭矩大，凿岩效率高。
It adopts the cycloidal gear reducer with large torque to meet high efficiency drilling.
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