Electric and pneumatic screwdrivers are indispensable assembly tools in modern industrial production, which can improve the work efficiency and product quality of the factory. Both have their own advantages and disadvantages. We can compare horizontally from the following aspects:
Appearance: The shell of electric screwdrivers is mostly made of plastic material, which conforms to ergonomic principles, feels comfortable, and is light in weight, which is more suitable for long-term operation.
Pneumatic screwdriver shells are mostly made of metal, which feels slightly worse than electric ones, but the metal shell has better antistatic performance.
Rotation speed: The speed of an electric screwdriver is generally about 1000-2000r/min. Because the motor generates electric sparks during operation, the screwdriver is easy to get hot after long-term high-frequency operation.
The speed of the pneumatic screwdriver is generally about 1000-2800r/min. Because the motor is driven by high-pressure gas, it will not be hot after long-term and high-frequency operation.
Torque accuracy: The electric screwdriver uses electronic braking so the accuracy is higher, and the general repeat accuracy is within 3%.
Pneumatic screwdrivers use mechanical braking, and the change of air source pressure will affect the torque stability of the screwdriver, so the general repeat accuracy is about 5%-3% if the error is larger. (If an air conditioner is installed, it will be better)
Energy consumption: The energy consumption of an electric screwdriver is 55W/H
Pneumatic screwdrivers use compressed gas as the actuation source, as long as the air pipeline is properly installed, the air consumption of each screwdriver is about 0.28㎡/min, which is relatively more energy-saving and environmentally friendly.
Maintenance cost: Electric tools need to replace carbon brushes in 3 to 6 months. In addition, there are more electric consumables, such as power cords, carbon brushes, bearings, etc., which will be maintained at a higher cost in the future.
Pneumatic screwdrivers have fewer consumables. As long as you pay attention to maintenance and refuel, you only need to replace the blades within a year.
To sum up: the advantages of electric screwdrivers are mainly convenience, comfort, high torque stability and low price; disadvantages, high failure rate, easy to get hot, and low safety.
The advantages of pneumatic screwdrivers are fast working speed, high safety, 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 price of a single screw is higher.