Aluminum Rectangular Air Knife

Product Details

Model Introduction: 

SCB-REC-Length * Width(mm)-AL/SS 

1. SCB means brand

2. REC stands for Rectangular air knife

3. Length * Width (mm) stands for the inner length and width required

4. AL/SS stands for the material required, aluminium alloy or stainess steel

The square air knife and rectangular air knife is a device for removing, drying, cleaning and cooling of square pipes, profiles, extruded products, hoses or other products. It provides a uniform 360° annular airflow, consumes little air, but can produce a strong removing force.

The inlet for the square and rectangular air knife can be made 2 sides, also can be made 4 sides, details will be according to the size. 

How to decrease comsuption and get the best performance

• Position the air blower / compressor as close as possible to the drying side.

• Use large size piping, at least equal to the blower discharge or larger 

• Use as few elbows as possible. If necessary needed, use long sweep elbows. Short elbows are not recommended.

• Use hard pipe with smooth interior walls, such as Stainless Steel thin wall tubing. Flexible hose connections should be minimized.

• Use the appropriate pipe connections

• Use well designed dividers with smooth transitions

• Only use flexible hose at the end of the piping system to connect the air knifes or manifolds. Smooth tubing typically has 70% less pressure drop. Avoid kinks in the hoses or sharp bends – these will lead to high pressure drops.

• High velocity air tends to do better when traveling straight or around smooth transitions. Avoid going over sharp corners or edges.

The best way to check the drying system is OK or not is to use a Differential Pressure gauge to measure a pressure difference between the blower outlet and the end of the air knife or manifold.