Also known as Air Knocker, the Pneumatic Knocker features high impact force, simple structure and easy operation.It can effectively solve problems such as powder material wall sticking, material hanging, blockage and bridging in powder handling systems.It delivers large impact force with low noise, and multiple models are available for different application needs.Both the impact force and operation time are controllable, and the Pneumatic Knocker is easy to install.It can be used in explosion-proof, dusty, humid and other harsh industrial environments.It is widely applied in fertilizer, chemical, food processing, medical, pesticide, glass, cement and other powder-related industries.With full aluminum structure, it has high strength; the single-unit type provides large impact force, is lightweight, and the impact interval time is adjustable.
The Pneumatic Knocker is an advanced powder-dropping device commonly used at home and abroad. It has been improved for many times, leading to the development of many new varieties.The product is innovative and unique in powder handling solutions.It is used to automatically prevent powder adhesion, blockage and bridging during the transportation of powder in pipelines, hoppers and silos, without causing damage or deformation to the equipment walls. It is widely used in chemical, fertilizer, food, ceramic, glass, cement, pharmaceutical, plastic, fuel and other powder processing industries.
When no compressed air (above 3Kg/cm) is supplied to the Pneumatic Knocker, the magnetic piston is tightly attached to the fixed base plate by strong magnetic force.When the three-way solenoid valve is energized, compressed air flows into the main body of the Pneumatic Knocker, and the pressure inside the main body increases. When the pressure exceeds the magnetic force, the magnetic piston detaches from the base plate at high speed, and a strong counterforce is generated due to the reaction force of the strong magnetic force.The magnetic piston falling at high speed hits the base plate, and its impact force is transmitted to the silo, knocking off the attached powder with strong impact force.When the three-way solenoid valve is de-energized, the compressed air inside the Pneumatic Knocker main body is discharged through the three-way solenoid valve. Then, the magnetic piston is slowly lifted up by the return spring to approach the base plate again, and is tightly connected to the base plate by magnetic force to return to the initial state.There is a strong magnetic magnet inside the hammer head. Before operation, the magnetic hammer head is tightly attached to the magnetic base plate. When the three-way solenoid valve is energized and the inlet pressure exceeds the attaching magnetic force, the magnetic hammer head detaches from the base plate at high speed and impacts the bottom. After the impact, the three-way solenoid valve is de-energized, the gas inside the product is discharged, and the hammer head resets.The impact force of the Air Knocker is transmitted to the pipeline or silo wall, ensuring the smooth flow of materials.It is widely used in chemical, fertilizer, pesticide, cement, fuel and other powder processing industries.
| Models | Use Pressure(MPa) | Air Consumption(L/once) | Impact(kg.m/s) | Weight(kg) |
| SK-30 | 0.3~0.7 | 0.028 | 1 | 1.1 |
| SK-40 | 0.3~0.7 | 0.082 | 2.8 | 2.7 |
| SK-60 | 0.3~0.7 | 0.228 | 7.4 | 6 |
| SK-80 | 0.3~0.7 | 0.60~1.40 | 15.2～23.7 | 11.5 |
| SK-100 | 0.3~0.7 | 0.98-2.28 | 30.0～46.9 | 15.5 |