Sep 19, 2025
A pneumatic hammer is an industrial device that uses compressed air to generate impact force. It is also known as a bin pneumatic hammer or air knocker. This equipment is widely used in various industries, particularly in material conveying systems, silos, and feeding equipment. Below, we will briefly introduce the working principle of the pneumatic hammer.
The key feature of the impact hammer lies in its pneumatic drive. It provides a strong magnetic field and pulverizing effect. Low air consumption, low operating cost, and energy efficiency are among its advantages. The impact interval can be adjusted. It offers consistent standards and a low failure rate. With a unique style and simple layout, it resists piston effects and features a modern appearance.
◆ High-strength aluminum body
◆ Low-frequency/continuous impact model, allowing sudden activation/deactivation
◆ Impact frequency and amplitude can be adjusted as needed
◆ Directly strikes the target object to deliver optimal vibration feedback.
When the air hammer is not supplied with compressed air, the magnetic piston is firmly attached to the baseplate by a strong magnetic force. When the two-position, three-way solenoid valve is energized, compressed air (greater than 3 kg/cm²) flows into the hammer. Once the air pressure exceeds the magnetic force, the piston strikes the baseplate at high speed. The resulting impact force is transmitted to the chamber wall, or directly impacts the chamber wall, generating vibrations that dislodge the powder. When the two-position, three-way solenoid valve is deenergized, the compressed air is exhausted through the valve, causing the piston to return under the force of the spring. As it approaches the baseplate, the magnetic force firmly attracts the piston back to the baseplate, restoring it to its original position. This completes one impact stroke. By adjusting the timer in the electrical control box, the interval and duration of powder discharge can be increased or decreased.
The following diagram shows the structure of a pneumatic hammer. Compressed air enters through port R, pushing the internal piston in linear motion, striking the bottom mounting surface. This direct impact produces a strong impact vibration. Finally, the exhaust gas is discharged through port G.
R:
This is the air inlet, connected to the compressed air pipeline. Compressed air enters the device through this port to drive the internal piston.
G:
This is the exhaust port. When the piston completes its movement, the air is discharged from here.
Overall Dimensions
φA, φC, φY:
These represent the outer or installation diameters, used for model selection and installation alignment.
H:
The overall height of the device.
PCDL:
Indicates the pitch circle diameter of the mounting bolt holes, used for flange fastening.
B, D, E, F, S, T:
These are detailed dimensions for actual mechanical installation.
The pneumatic hammer is one of Fokca's pneumatic products. In addition, we also offer pneumatic actuators, valves, pneumatic tubing, fittings, and other types of pneumatic equipment. We are dedicated to collaborating with customers worldwide in the field of industrial automation, helping to achieve precision machining and intelligent manufacturing. Visit our official website for more information, or contact us directly to obtain the latest prices and product details.
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