Widest adjustable edge gap range in the lineup: 0.1 – 4.0 mm — covers ultra-fine precision drying through to high-volume industrial air curtain in a single unit
Bottom-only inlet design (M6 thread, Φ45 / Φ51 / Φ60) — keeps pipework below the knife body for clean, unobstructed overhead or flush-mount installations
Longest customizable length in the aluminum alloy range: 50 – 4000 mm — suitable from compact spot fixtures to wide-format production lines
Compact 60W × 90H mm low-profile cross-section — low vertical clearance requirement, easy integration into confined machine frames
High-temp silicone gasket seals (≤250°C) and full OEM/ODM support — factory direct, every unit calibrated to specification before shipment
Product Key Selling Points
Widest adjustable edge gap range in the lineup: 0.1 – 4.0 mm — covers ultra-fine precision drying through to high-volume industrial air curtain in a single unit
Bottom-only inlet design (M6 thread, Φ45 / Φ51 / Φ60) — keeps pipework below the knife body for clean, unobstructed overhead or flush-mount installations
Longest customizable length in the aluminum alloy range: 50 – 4000 mm — suitable from compact spot fixtures to wide-format production lines
Compact 60W × 90H mm low-profile cross-section — low vertical clearance requirement, easy integration into confined machine frames
High-temp silicone gasket seals (≤250°C) and full OEM/ODM support — factory direct, every unit calibrated to specification before shipment
Product Structure & Working Principle
Low-profile aluminum alloy extrusion body (60W × 90H mm) — compact height reduces vertical clearance requirements without compromising internal air volume
Bottom inlet port (M6 thread) allows air supply piping to route cleanly downward, eliminating side or end protrusions that complicate machine frame integration
Internal plenum equalizes compressed air pressure from the bottom inlet across the full blade length before directing flow to the outlet slot
Tapered acceleration duct converts equalized plenum pressure into a high-velocity, uniform laminar air sheet at the adjustable knife edge
Outlet slot adjustable from 0.1 mm to 4.0 mm via precision edge screws — broadest range in the series, no disassembly required for gap changes
High-temp silicone gasket end seals (≤250°C) maintain airtight blade terminations across a wide range of operating temperatures
Application Scenarios
The A-D Air Knife's bottom inlet configuration and wide gap range make it the preferred choice for installations requiring clean pipework routing and versatile airflow control:
PCB Cleaning Lines — bottom-feed installation fits neatly beneath conveyor frames; adjustable gap handles both flux removal and board drying
Surface Drying — Bottles, Containers & Parts — wide gap range accommodates varying throughput speeds and substrate geometries on the same drying station
Dust Removal — 0.1 mm minimum gap delivers precision particle displacement on flat panels, optical glass, and sensitive electronic assemblies
Overhead & Flush-Mount Installations — bottom inlet routes pipework away from the working surface, ideal for ceiling-mount or recessed machine-frame installations
Wide-Format Drying Lines — up to 4000 mm custom length covers glass, textile, metal sheet, and film production lines without knife-to-knife joints
Heated Process Equipment — high-temp silicone seals (≤250°C) allow integration into dryers, heat tunnels, and thermal treatment conveyor systems
Technical Parameters
Parameter | Specification |
Model | A-D Air Knife (A-D可调风刀) |
Cross-Section Size | 60W × 90H mm |
Main Material | Aluminium Alloy |
Air Inlet Position | Bottom Only |
Air Inlet Size | Φ45 / Φ51 / Φ60 |
Inlet Thread | M6 |
Air Knife Edge Size | 0.1 – 4.0 mm (Adjustable) |
Customizable Length | 50 – 4000 mm |
End Sealing | High-Temp Silicone Gasket Seal (≤250°C) |
OEM / ODM | Supported |
Factory Capability · Customization · Service
Full in-house CNC machining of aluminum alloy extrusions — blade body, internal plenum, bottom inlet port, and outlet slot all produced and verified on-site
Custom lengths from 50 mm to 4000 mm — the longest range in our aluminum alloy lineup — with full dimensional and pressure verification before shipment
Bottom inlet thread (M6), pipe diameter (Φ45 / Φ51 / Φ60), air gap range (0.1–4.0 mm), and surface finish all configurable per customer order
OEM and ODM manufacturing supported — accept engineering drawings, reference samples, or application-based requirement descriptions
High-temp silicone gasket seals (≤250°C) fitted as standard — no additional cost or lead time for heated-process applications
Pre-shipment quality protocol: pressure integrity test, edge-gap calibration to specified tolerance, inlet port thread check, and dimensional inspection
Competitive Advantage
Comparison Item | QXY A-D Air Knife | Standard Air Knife |
Air Gap Adjustability | Adjustable 0.1–4.0 mm ✓ | Fixed, not adjustable ✗ |
Inlet Position | Bottom-only — clean overhead layout | End only, side protrusion |
Min. Edge Gap | 0.1 mm — ultra-precision capable | 0.5 mm or fixed |
Max. Edge Gap | 4.0 mm — high-volume air curtain | Limited upper range |
High-Temp Sealing | Silicone gasket ≤250°C ✓ | Standard rubber seal ✗ |
Length Range | 50–4000 mm custom | Standard sizes only |
Customization | Length, gap, inlet size, finish | No customization |
About Us & Custom Inquiry
Shenzhen Qixingyuan Machinery Equipment Co., Ltd.
We are a specialized manufacturer of industrial air knife systems, offering a comprehensive product range that includes aluminum alloy, stainless steel, and PVC air knives, as well as blowers, mounting hardware, and full system accessories. Our production facility is equipped with precision CNC machining capabilities and strict in-process quality controls, ensuring that every air knife — from internal plenum geometry to outlet slot calibration — is manufactured and verified to exact specification before shipment.
With deep experience in OEM and ODM manufacturing, we serve clients in the electronics, automotive, food and beverage, pharmaceutical, and general manufacturing industries worldwide. From a single replacement unit to a fully engineered multi-knife drying system, our team works directly from your requirements — drawing, sample, or application description — to deliver a solution that integrates seamlessly with your equipment.
Request a Custom Quote
We support customized air knife length, air gap, and airflow design according to your equipment requirements.
Product Key Selling Points
Widest adjustable edge gap range in the lineup: 0.1 – 4.0 mm — covers ultra-fine precision drying through to high-volume industrial air curtain in a single unit
Bottom-only inlet design (M6 thread, Φ45 / Φ51 / Φ60) — keeps pipework below the knife body for clean, unobstructed overhead or flush-mount installations
Longest customizable length in the aluminum alloy range: 50 – 4000 mm — suitable from compact spot fixtures to wide-format production lines
Compact 60W × 90H mm low-profile cross-section — low vertical clearance requirement, easy integration into confined machine frames
High-temp silicone gasket seals (≤250°C) and full OEM/ODM support — factory direct, every unit calibrated to specification before shipment
Product Structure & Working Principle
Low-profile aluminum alloy extrusion body (60W × 90H mm) — compact height reduces vertical clearance requirements without compromising internal air volume
Bottom inlet port (M6 thread) allows air supply piping to route cleanly downward, eliminating side or end protrusions that complicate machine frame integration
Internal plenum equalizes compressed air pressure from the bottom inlet across the full blade length before directing flow to the outlet slot
Tapered acceleration duct converts equalized plenum pressure into a high-velocity, uniform laminar air sheet at the adjustable knife edge
Outlet slot adjustable from 0.1 mm to 4.0 mm via precision edge screws — broadest range in the series, no disassembly required for gap changes
High-temp silicone gasket end seals (≤250°C) maintain airtight blade terminations across a wide range of operating temperatures
Application Scenarios
The A-D Air Knife's bottom inlet configuration and wide gap range make it the preferred choice for installations requiring clean pipework routing and versatile airflow control:
PCB Cleaning Lines — bottom-feed installation fits neatly beneath conveyor frames; adjustable gap handles both flux removal and board drying
Surface Drying — Bottles, Containers & Parts — wide gap range accommodates varying throughput speeds and substrate geometries on the same drying station
Dust Removal — 0.1 mm minimum gap delivers precision particle displacement on flat panels, optical glass, and sensitive electronic assemblies
Overhead & Flush-Mount Installations — bottom inlet routes pipework away from the working surface, ideal for ceiling-mount or recessed machine-frame installations
Wide-Format Drying Lines — up to 4000 mm custom length covers glass, textile, metal sheet, and film production lines without knife-to-knife joints
Heated Process Equipment — high-temp silicone seals (≤250°C) allow integration into dryers, heat tunnels, and thermal treatment conveyor systems
Technical Parameters
Parameter | Specification |
Model | A-D Air Knife (A-D可调风刀) |
Cross-Section Size | 60W × 90H mm |
Main Material | Aluminium Alloy |
Air Inlet Position | Bottom Only |
Air Inlet Size | Φ45 / Φ51 / Φ60 |
Inlet Thread | M6 |
Air Knife Edge Size | 0.1 – 4.0 mm (Adjustable) |
Customizable Length | 50 – 4000 mm |
End Sealing | High-Temp Silicone Gasket Seal (≤250°C) |
OEM / ODM | Supported |
Factory Capability · Customization · Service
Full in-house CNC machining of aluminum alloy extrusions — blade body, internal plenum, bottom inlet port, and outlet slot all produced and verified on-site
Custom lengths from 50 mm to 4000 mm — the longest range in our aluminum alloy lineup — with full dimensional and pressure verification before shipment
Bottom inlet thread (M6), pipe diameter (Φ45 / Φ51 / Φ60), air gap range (0.1–4.0 mm), and surface finish all configurable per customer order
OEM and ODM manufacturing supported — accept engineering drawings, reference samples, or application-based requirement descriptions
High-temp silicone gasket seals (≤250°C) fitted as standard — no additional cost or lead time for heated-process applications
Pre-shipment quality protocol: pressure integrity test, edge-gap calibration to specified tolerance, inlet port thread check, and dimensional inspection
Competitive Advantage
Comparison Item | QXY A-D Air Knife | Standard Air Knife |
Air Gap Adjustability | Adjustable 0.1–4.0 mm ✓ | Fixed, not adjustable ✗ |
Inlet Position | Bottom-only — clean overhead layout | End only, side protrusion |
Min. Edge Gap | 0.1 mm — ultra-precision capable | 0.5 mm or fixed |
Max. Edge Gap | 4.0 mm — high-volume air curtain | Limited upper range |
High-Temp Sealing | Silicone gasket ≤250°C ✓ | Standard rubber seal ✗ |
Length Range | 50–4000 mm custom | Standard sizes only |
Customization | Length, gap, inlet size, finish | No customization |
About Us & Custom Inquiry
Shenzhen Qixingyuan Machinery Equipment Co., Ltd.
We are a specialized manufacturer of industrial air knife systems, offering a comprehensive product range that includes aluminum alloy, stainless steel, and PVC air knives, as well as blowers, mounting hardware, and full system accessories. Our production facility is equipped with precision CNC machining capabilities and strict in-process quality controls, ensuring that every air knife — from internal plenum geometry to outlet slot calibration — is manufactured and verified to exact specification before shipment.
With deep experience in OEM and ODM manufacturing, we serve clients in the electronics, automotive, food and beverage, pharmaceutical, and general manufacturing industries worldwide. From a single replacement unit to a fully engineered multi-knife drying system, our team works directly from your requirements — drawing, sample, or application description — to deliver a solution that integrates seamlessly with your equipment.
Request a Custom Quote
We support customized air knife length, air gap, and airflow design according to your equipment requirements.
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
