Micro Oil Piston vs Oil Free Piston Air Compressor_ Pros and Cons
皮带微油活塞机，主要缺点是效率低（只有双螺杆或滑片式的70--85%），噪音超高，维修工作量大。优点就是价格便宜，一般只有双螺杆和滑片式的1/5甚至更低（以合资或进口品牌为参考）。因其效率较低，在工业应用方面已经淘汰。活塞机的使用主要在小功率的微型民用市场和高压机型（20bar以上）。
The main disadvantages of the belt micro-oil piston air compressor are low efficiency (only 70-85% of twin screw or sliding vane type), super high noise and heavy maintenance workload.
The advantage is that the price is cheap, generally only 1/5 or even lower of twin screw and sliding vane type (take joint venture or imported brand as reference). Because of its low efficiency, it has been phased out in industrial applications. Piston machines are mainly used in low-power micro-civilian markets and high-pressure models (above 20bar).
静音无油式活塞机的优点在于它的适用压力范围较广一些，不管排气量的大小，都可以达到所需的压力。相对皮带机它的热效率更高，能耗小，大大降低了活塞式空压机的能源损耗。 装置系统比较简单紧凑，密封性能好，使用方便，运行平稳，振动小，噪音小，持有的消声器，能降低活塞式空压机的噪音，相比皮带式活塞机来说它的噪音不是小一点点。
The advantage of the silent oil-free piston engine is that it has a wider applicable pressure range, and the required pressure can be reached regardless of the size of the displacement. Compared with belt conveyors, it has higher thermal efficiency and lower energy consumption, which greatly reduces the energy consumption of piston air compressors. The device system is relatively simple and compact, with good sealing performance, easy to use, stable operation, low vibration, low noise, and the muffler can reduce the noise of the piston type air compressor. Compared with the belt type piston machine, its noise is not small a little bit.
