Magnetic, direct d. c. drive built for continuous, maintenance free operation.

直接磁力驱动技术，免维护，长期连续运转。

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Maintenance free operation, no need to add water, no equalizing charge required.

设计简洁，免维护，无需补水，不需均衡充电。

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The practice proves that this system can be effectively increase the level of free maintenance and operation reliability of DC adjusting speed control system.

实践证明，该系统能有效提高直流调速传动控制系统的运行可靠性及免维护水平。

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