QXY Machinery's A-B Series Aluminum Alloy Air Knife is engineered for high-velocity, uniform airflow across demanding industrial drying and cleaning applications. With its widened, thickened blade profile and dual internal flow-plate design, this air knife delivers consistent sheet airflow with minimal resistance — making it the go-to solution for coating machines, fiber processing lines, textile spraying, and more. Its length is fully customizable from 500 mm to 4600 mm, and both inlet position and edge gap width are adjustable on-site.
Product Overview
QXY Machinery's A-B Series Aluminum Alloy Air Knife is engineered for high-velocity, uniform airflow across demanding industrial drying and cleaning applications. With its widened, thickened blade profile and dual internal flow-plate design, this air knife delivers consistent sheet airflow with minimal resistance — making it the go-to solution for coating machines, fiber processing lines, textile spraying, and more. Its length is fully customizable from 500 mm to 4600 mm, and both inlet position and edge gap width are adjustable on-site.
About QXY Machinery
Shenzhen Qixingyuan Machinery Equipment Co., Ltd. specializes in fluid handling and industrial air knife solutions — including aluminum alloy air knives, stainless steel air knives, PVC air knives, and a full range of air knife accessories. Our products are engineered for drying, dust removal, water blowing, and air curtain isolation across multiple industries.
We support fully custom air knife solutions tailored to your equipment dimensions, airflow requirements, and operating conditions, including OEM and ODM projects.
Product Details
Product Name: A-B Air Knife — High-Velocity Adjustable Aluminum Alloy Air Knife
Primary Function: Delivers a powerful, even sheet of high-speed air for rapid drying, fiber brushing, and coating line processing.
Key Advantage: Widened and thickened blade construction ensures the knife holds its shape even under heat. No internal wear parts mean reduced maintenance. SUS304 end covers extend service life well beyond comparable imported models.
How It's Built:
The A-B Air Knife is a precision-machined, one-piece aluminum alloy body. Its internal air path is optimized for smooth, low-resistance flow. Key structural elements include:
• Circular air inlet (side or bottom entry, Φ51 / Φ60 / Φ63 / Φ76 options)
• Widened air plenum for pressure equalization
• Dual-layer internal splitter plates for uniform airflow distribution
• Tapered acceleration section to maximize exit velocity
• Precision-machined narrow slot outlet with adjustable edge gap (0.1–3.0 mm)
• Silicone gasket seals at both ends for airtight performance
Technical Features
Adjustable Edge Gap: You can adjust the gap on-site. Use the screws on the knife edge. You do not need to take the knife apart. The gap goes from 0.1 mm to 3.0 mm. Set the gap to fit your job.
Dual Flow-Plate Design: There are two plates inside the knife. These plates stop messy air. They make the air move fast and smooth. The air curtain is the same across the whole knife length.
Heat-Stable Construction: The blade is wide and thick. It keeps its shape even when it is very hot. This is good for hot fiber lines and industrial spray lines.
Zero Internal Wear Parts: The inside of the knife is very smooth. There are no moving parts inside. This means the knife does not wear out. It saves money on repairs and stays running.
SUS304 End Covers: The end covers are made of 304 stainless steel. This steel does not rust. It works well in wet or hot places. It makes the air knife last much longer.
Customizable Length: Standard lengths are 500 mm to 4600 mm. We can make other lengths if you ask. We can fit any production line.
Typical Applications
The A-B Aluminum Alloy Air Knife is widely deployed in industries requiring consistent, high-speed airflow for surface treatment or climate control:
• Coating Machines & Spray Lines — uniform air curtain for even coating and rapid drying
• Fiber Processing & Textile Machines — heated airflow for fiber brushing and fabric finishing
• Ultrasonic Cleaning Lines — post-wash water removal on precision components
• PCB & Electronics Manufacturing — board drying after wash or soldering processes
• Metal Sheet & Wire Processing — surface drying on aluminum, steel, or copper substrates
• Food & Pharmaceutical Lines — drying, sterilization, and air isolation applications
• General Industrial Air Curtains — zone separation for heat, cold, dust, or fume containment
Core Features Summary
• Widened & thickened blade — no deformation under heat, longer service life
• No internal wear parts — minimal maintenance, maximum uptime
• SUS304 stainless steel end covers — superior durability vs. imported models
• Adjustable air outlet gap (0.1–3.0 mm) via on-site edge screw adjustment
• Dual internal flow plates — low resistance, uniform high-speed airflow
• Multiple inlet sizes: Φ51, Φ60, Φ63, Φ76 — side or bottom position
• Custom length 500–4600 mm — compatible with OEM/ODM projects
• Silicone gasket seals at both ends for reliable airtight performance
Product Parameters
Parameter Table:
Item | Description |
Model | A-B Air Knife (Aluminum Alloy Air Knife) |
Size | 84W × 178H mm |
Main Material | Aluminium Alloy |
Air Inlet Position | Side, Bottom |
Air Inlet Size | Φ51 Φ60 Φ63 Φ76 |
Air Knife Edge Size | 0.1–3.0 mm (Adjustable) |
Length | 500–4600 mm (Customizable) |
Sealing | Silicone Gasket Seal (both ends) |
End Covers | SUS304 Stainless Steel |
Attention / Usage Notes
1. Protect the Air Gap. Keep incoming air clean. Install a basic filter (40 micron or finer) upstream of the air inlet to prevent particulate contamination. Large particles can scratch the internal duct surface or partially block the precision knife edge gap.
2. Avoid Collision with the Knife Edge. The precision-machined knife edge is the most sensitive part of this unit. Avoid any mechanical contact during installation, maintenance, or transportation. Even minor deformation can affect airflow uniformity.
3. Verify Air Supply Conditions. Ensure your air supply is within the rated pressure range. Use dry, clean air to prevent internal moisture build-up or contamination of the outlet gap.
4. Optimal Installation Distance. For best drying results, position the air knife 5–20 mm from the target surface. The air slot centerline should be aimed directly at the area to be dried or processed.
5. Factory-Calibrated Edge Width. Each unit is calibrated at our factory to the specified edge gap before shipment. If a different gap setting is required, contact our technical team — do not attempt to adjust the internal splitter plate geometry yourself.
6. Regular Cleaning. Periodically inspect and clean the air inlet screen and the knife edge slot during routine machine maintenance. Dust or light oil accumulation can reduce airflow performance over time.
Product Applications
This A-B Aluminum Alloy Air Knife is widely deployed on coating machines, fiber cleaning and brushing lines, ultrasonic cleaning systems, bottle and container drying conveyors, automotive component drying stations, PCB/LCD wash lines, and industrial air curtain isolation setups.
Factory Photo Gallery
Product Applications
This aluminum air knife is widely used in PCB/LCD cleaning lines, ultrasonic cleaning machines, bottle drying systems, automotive components drying, coating lines, and air curtain isolation applications.
Other Product
Product Overview
QXY Machinery's A-B Series Aluminum Alloy Air Knife is engineered for high-velocity, uniform airflow across demanding industrial drying and cleaning applications. With its widened, thickened blade profile and dual internal flow-plate design, this air knife delivers consistent sheet airflow with minimal resistance — making it the go-to solution for coating machines, fiber processing lines, textile spraying, and more. Its length is fully customizable from 500 mm to 4600 mm, and both inlet position and edge gap width are adjustable on-site.
About QXY Machinery
Shenzhen Qixingyuan Machinery Equipment Co., Ltd. specializes in fluid handling and industrial air knife solutions — including aluminum alloy air knives, stainless steel air knives, PVC air knives, and a full range of air knife accessories. Our products are engineered for drying, dust removal, water blowing, and air curtain isolation across multiple industries.
We support fully custom air knife solutions tailored to your equipment dimensions, airflow requirements, and operating conditions, including OEM and ODM projects.
Product Details
Product Name: A-B Air Knife — High-Velocity Adjustable Aluminum Alloy Air Knife
Primary Function: Delivers a powerful, even sheet of high-speed air for rapid drying, fiber brushing, and coating line processing.
Key Advantage: Widened and thickened blade construction ensures the knife holds its shape even under heat. No internal wear parts mean reduced maintenance. SUS304 end covers extend service life well beyond comparable imported models.
How It's Built:
The A-B Air Knife is a precision-machined, one-piece aluminum alloy body. Its internal air path is optimized for smooth, low-resistance flow. Key structural elements include:
• Circular air inlet (side or bottom entry, Φ51 / Φ60 / Φ63 / Φ76 options)
• Widened air plenum for pressure equalization
• Dual-layer internal splitter plates for uniform airflow distribution
• Tapered acceleration section to maximize exit velocity
• Precision-machined narrow slot outlet with adjustable edge gap (0.1–3.0 mm)
• Silicone gasket seals at both ends for airtight performance
Technical Features
Adjustable Edge Gap: You can adjust the gap on-site. Use the screws on the knife edge. You do not need to take the knife apart. The gap goes from 0.1 mm to 3.0 mm. Set the gap to fit your job.
Dual Flow-Plate Design: There are two plates inside the knife. These plates stop messy air. They make the air move fast and smooth. The air curtain is the same across the whole knife length.
Heat-Stable Construction: The blade is wide and thick. It keeps its shape even when it is very hot. This is good for hot fiber lines and industrial spray lines.
Zero Internal Wear Parts: The inside of the knife is very smooth. There are no moving parts inside. This means the knife does not wear out. It saves money on repairs and stays running.
SUS304 End Covers: The end covers are made of 304 stainless steel. This steel does not rust. It works well in wet or hot places. It makes the air knife last much longer.
Customizable Length: Standard lengths are 500 mm to 4600 mm. We can make other lengths if you ask. We can fit any production line.
Typical Applications
The A-B Aluminum Alloy Air Knife is widely deployed in industries requiring consistent, high-speed airflow for surface treatment or climate control:
• Coating Machines & Spray Lines — uniform air curtain for even coating and rapid drying
• Fiber Processing & Textile Machines — heated airflow for fiber brushing and fabric finishing
• Ultrasonic Cleaning Lines — post-wash water removal on precision components
• PCB & Electronics Manufacturing — board drying after wash or soldering processes
• Metal Sheet & Wire Processing — surface drying on aluminum, steel, or copper substrates
• Food & Pharmaceutical Lines — drying, sterilization, and air isolation applications
• General Industrial Air Curtains — zone separation for heat, cold, dust, or fume containment
Core Features Summary
• Widened & thickened blade — no deformation under heat, longer service life
• No internal wear parts — minimal maintenance, maximum uptime
• SUS304 stainless steel end covers — superior durability vs. imported models
• Adjustable air outlet gap (0.1–3.0 mm) via on-site edge screw adjustment
• Dual internal flow plates — low resistance, uniform high-speed airflow
• Multiple inlet sizes: Φ51, Φ60, Φ63, Φ76 — side or bottom position
• Custom length 500–4600 mm — compatible with OEM/ODM projects
• Silicone gasket seals at both ends for reliable airtight performance
Product Parameters
Parameter Table:
Item | Description |
Model | A-B Air Knife (Aluminum Alloy Air Knife) |
Size | 84W × 178H mm |
Main Material | Aluminium Alloy |
Air Inlet Position | Side, Bottom |
Air Inlet Size | Φ51 Φ60 Φ63 Φ76 |
Air Knife Edge Size | 0.1–3.0 mm (Adjustable) |
Length | 500–4600 mm (Customizable) |
Sealing | Silicone Gasket Seal (both ends) |
End Covers | SUS304 Stainless Steel |
Attention / Usage Notes
1. Protect the Air Gap. Keep incoming air clean. Install a basic filter (40 micron or finer) upstream of the air inlet to prevent particulate contamination. Large particles can scratch the internal duct surface or partially block the precision knife edge gap.
2. Avoid Collision with the Knife Edge. The precision-machined knife edge is the most sensitive part of this unit. Avoid any mechanical contact during installation, maintenance, or transportation. Even minor deformation can affect airflow uniformity.
3. Verify Air Supply Conditions. Ensure your air supply is within the rated pressure range. Use dry, clean air to prevent internal moisture build-up or contamination of the outlet gap.
4. Optimal Installation Distance. For best drying results, position the air knife 5–20 mm from the target surface. The air slot centerline should be aimed directly at the area to be dried or processed.
5. Factory-Calibrated Edge Width. Each unit is calibrated at our factory to the specified edge gap before shipment. If a different gap setting is required, contact our technical team — do not attempt to adjust the internal splitter plate geometry yourself.
6. Regular Cleaning. Periodically inspect and clean the air inlet screen and the knife edge slot during routine machine maintenance. Dust or light oil accumulation can reduce airflow performance over time.
Product Applications
This A-B Aluminum Alloy Air Knife is widely deployed on coating machines, fiber cleaning and brushing lines, ultrasonic cleaning systems, bottle and container drying conveyors, automotive component drying stations, PCB/LCD wash lines, and industrial air curtain isolation setups.
Factory Photo Gallery
Product Applications
This aluminum air knife is widely used in PCB/LCD cleaning lines, ultrasonic cleaning machines, bottle drying systems, automotive components drying, coating lines, and air curtain isolation applications.
Other Product
Shenzhen Qixingyuan Machinery Equipment Co., LTD.
+86 188 0268 5954
info@airknifecn.com
Building 8, Wanfeng Third Industrial Zone, Xinqiao Street, Bao'an,Shenzhen，Guangdong China
