AIR KNIFE

Air Knife for Plastic Pelletizing Line

Our industrial air knife is an essential auxiliary equipment for plastic pelletizer, including strand pelletizer and underwater pelletizer. This high-pressure air curtain system rapidly strips surface moisture of hot plastic strands and finished pellets after water cooling, effectively solving common defects such as water stains, sticky pellets and uneven drying.

Constructed with full 304 stainless steel, our air knife is compatible with PP, PE, PET, ABS, PVC plastic recycling and compounding extrusion lines. It replaces slow natural air drying, greatly raising production output and reducing faults in subsequent packaging procedures.

Core Advantages:

1. Efficient Complete Water Removal

   Ultra-thin uniform high-speed air curtain instantly removes residual cooling water, no water marks left on plastic products, cutting post-drying cost by over 60%.

2. Rust & Corrosion Resistant Stainless Steel Structure

   304 stainless steel knife body, resistant to water vapor and plastic additive corrosion, stable long-term operation in humid pelletizing workshops.

3. Low Noise & Energy Saving Matching Blower

   Support matched high-pressure low-noise centrifugal blower, stable air output with lower power consumption than ordinary air fans.

4. Wide Compatibility for All Pelletizing Equipment

   Fit strand pelletizer, underwater pelletizer, plastic recycling granulator, single/twin screw extruder; easy to install as replacement spare parts.

5. Compact Space-saving Structure

   Small occupation area, convenient to install beside water tank and cutting chamber, simple daily maintenance without complicated disassembly.

Application Scope:

1. Plastic recycling granulation: PP, PE film, bottle flakes, waste plastic re-pelletizing

2. Engineering plastic extrusion: PET, ABS, PA, PBT, PC strand pelletizing

3. Color masterbatch & filler compound underwater pelletizing lines

4. Twin screw modified plastic production equipment

5. All supporting auxiliary machinery for plastic pelletizer

Frequently Asked Questions（FAQ）

• What is the function of air knife on pelletizer?

   It blows away cooling water on plastic strands and pellets, avoid pellet sticking and improve surface quality of finished granules.

• Will the air knife get rusty in humid workshop?

   The whole body is made of 304 stainless steel, it can run stably long-term in wet cooling environment without rust.

• Do you supply matched blower together with air knife?

   We provide full complete air knife system including knife body, blower and connecting pipes.