Advantages and disadvantages of pneumatic screwdrivers and Electric Screwdrivers
Pneumatic screwdriver supplies less, as long as the usual attention to maintenance, refueling, generally within a year only need to change the blade,.To sum up: the advantages of electric screwdriver are convenience, comfort, high torque stability and low price. The disadvantages are high failure rate, easy to scald and low safety.The advantages of pneumatic screwdriver is the main working speed, high safety, anti-static, low failure rate, long service life, energy saving and environmental protection; disadvantages, feel bad, the accuracy of torque to the stability of the reference pressure, a higher price.
Pneumatic screwdriver adopts mechanical brake, and the change of air pressure will affect the stability of the torque of the screwdriver, so the mistake is bigger, and the repetitive precision is about 5%-3%. (if air conditioning is added, it will be better.)Energy consumption: the energy consumption of electric screwdriver is 55W/HPneumatic screwdriver with compressed gas as power source as long as the air consumption of air pipeline is reasonable in each elevator 0.28 square meters around /min, relatively more energy saving and environmental protection.Maintenance cost: electric tools in 3 to 6 months to replace the carbon brush and other electric more supplies, power line, carbon brush, bearings, days after the maintenance of higher.
Speed: electric screwdriver speed is generally about 1000-2000r/min, because the motor in operation will produce electric sparks, so long time high frequency operation screwdriver easily hot.Pneumatic screwdriver speed is generally about 1000-2800r/min, because the motor is driven by high-pressure gas, so long time, high-frequency operation will not be hot.Torque accuracy: electric screwdriver adopts electronic brake, so the accuracy is higher, the general repeatability is less than 3%.
Electric and pneumatic screwdriver assembly is an indispensable tool in modern industrial production, the factory can improve work efficiency and product quality, each one has its own advantages and disadvantages, we can compare from the following aspects:Appearance: the shell of the electric screwdriver is mostly made of plastic material. It conforms to the principle of human engineering and feels comfortable and light in weight. It is more suitable for long time operation.The pneumatic screwdriver shell is mostly made of metal, and the handle is slightly worse than the electric one, but the metal case has better antistatic performance.
