Main Engine Of Oil-Free Air Compressor ZW750-75/7AF

At the heart of the oil-free air compressor is a superior two-stage compressor. The rotor has undergone 20 processes of finishing, so that the rotor line can achieve unparalleled precision and durability. High-quality bearings and precision gears are installed inside to ensure the coaxiality of the rotor and make the rotor fit accurately, so as to maintain long-term efficient and reliable operation.
Oversized anti-friction bearings easily carry all loads to keep the machine running properly. In the critical sealing link, the anti-air leakage seal is made of stainless steel, while the anti-oil leakage seal adopts a durable labyrinth design. This set of seals can not only prevent impurities in the lubricating oil from entering the rotor, but also prevent air leakage and ensure a continuous flow of clean, oil-free compressed air.
In order to optimize the speed and rotor life, another advantage of the oil-free screw compressor is that the main engine uses precision gears, and an improved lip seal is installed at the input end of the drive gear shaft to prevent oil leakage into the unit.

Precautions for use
1. When the oil-free compressor is shut down due to a power failure, in order to prevent the compressor from starting under pressure, the pressure switch power-off handle should be pulled when starting up again, and the air in the pipeline should be drained, and then the compressor should be restarted.
2. The user must set the compressor protection grounding wire to ensure that all metal casings of the oil-free compressor are in good contact with the earth, and the grounding resistance should meet the national standard.
3. When the oil-free compressor finds serious air leakage, abnormal noise, and peculiar smell, it must stop running immediately, and it can only run again after finding out the cause and eliminating the fault and returning to normal.
4. The air compressor is an oil-free air compressor, and the friction parts are self-lubricating, so do not add lubricating oil.
5. The air compressor must be fixed on a ventilated, stable and solid working surface. In order to reduce noise and vibration, a shock absorber must be installed.
6. The filter medium (foam sponge or felt) in the filter should be cleaned every three months, blow off the dust on the medium, wash it with water if necessary, and dry it before use.
7. The oil-free compressor should be maintained at least once a quarter. The maintenance content includes thoroughly removing the dust and dirt outside the compressor, checking and tightening the connecting bolts around the compressor, whether the grounding wire is intact, and checking whether the electrical circuit is aging or damaged. .