Electric screwdriver and pneumatic screwdriver play their respective purposes in our work. They are indispensable assembly tools in modern industrial production. They can improve the work efficiency and product quality of the factory and bring great help to our work. Of course, every beautiful thing has some small shortcomings, as the saying goes, there is nothing without defects. The same is true for electric screwdriver and pneumatic screwdriver. Each has its own advantages and disadvantages. We can make a horizontal comparison from the following aspects:
1. Speed:
The speed of the electric screwdriver is generally about -r/min, because the motor will generate electric sparks during operation, so the screwdriver is easy to burn for a long time and high frequency. The rotating speed of the pneumatic screwdriver is generally about -r/min, because the motor is driven by high-pressure gas, long-term and high-frequency operation will not burn.
2. Appearance:
The shell of the electric screwdriver is made of plastic material, which conforms to the principle of ergonomics, and the light weight is more suitable for long-term operation. Pneumatic screwdriver shell is mostly metal material, feel slightly worse than electric, but the metal shell anti-static performance is better.
3. Energy consumption:
The power consumption of the electric screwdriver is 55 W/H. The pneumatic screwdriver uses compressed gas as the actuating source. As long as the air pipeline is reasonably set, the air consumption of each screwdriver is about 0.28 ㎡/min, which is relatively more energy-saving and environment-friendly.
4. Torque accuracy:
The electric screwdriver adopts electronic brake, so the accuracy is higher, and the general repetition accuracy is within 3%. The pneumatic screwdriver adopts mechanical brake, and the change of air source pressure will affect the torque stability of the screwdriver, so the general repetition accuracy is about 5%-3%. (It would be better to install an air conditioner).
5. Maintenance costs:
Electric tools in 3 months to 6 months to replace the carbon brush, the other electric supplies more, power cord, carbon brush, bearings, etc., in the future to maintain a higher. The pneumatic screwdriver supplies less, as long as the usual attention to maintenance refueling, generally within a year only need to change the blade.
In summary, the advantages of electric screwdrivers are mainly convenience, high torque stability and low price; disadvantages, high failure rate, and easy to burn. The main advantages of pneumatic screwdrivers are fast working speed, anti-static, low failure rate, long life, energy saving and environmental protection; disadvantages, poor hand feeling, torque accuracy should refer to the stability of air pressure, and the single price is higher. Generally speaking, pneumatic screwdrivers are better than electric screwdrivers, but there are many brand merchants in the market at present, and fake and shoddy copycats are also common.
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