Slim 55W × 100H mm cross-section with bottom-only M8 inlet — the narrowest bottom-inlet model in the range, designed for high-density or space-restricted installations
Wide adjustable edge gap: 0.2 – 4.0 mm — a single unit handles precision fine-mist drying at the low end and high-volume air curtain separation at the upper limit
Bottom inlet (M8 thread, Φ45 / Φ51 / Φ60) routes all pipework below the knife body — zero side or end clearance required, ideal for flush-mount and overhead configurations
Long customizable length: 50 – 4000 mm — accommodates everything from compact component drying jigs to wide-format industrial drying lines
High-temp silicone gasket seals (≤250°C), factory calibration, and full OEM/ODM support — every unit built and verified to your specification
Product Key Selling Points
Slim 55W × 100H mm cross-section with bottom-only M8 inlet — the narrowest bottom-inlet model in the range, designed for high-density or space-restricted installations
Wide adjustable edge gap: 0.2 – 4.0 mm — a single unit handles precision fine-mist drying at the low end and high-volume air curtain separation at the upper limit
Bottom inlet (M8 thread, Φ45 / Φ51 / Φ60) routes all pipework below the knife body — zero side or end clearance required, ideal for flush-mount and overhead configurations
Long customizable length: 50 – 4000 mm — accommodates everything from compact component drying jigs to wide-format industrial drying lines
High-temp silicone gasket seals (≤250°C), factory calibration, and full OEM/ODM support — every unit built and verified to your specification
Product Structure & Working Principle
Slim-profile aluminum alloy extrusion (55W × 100H mm) — 5 mm narrower than the A-D model, reducing lateral clearance requirements in multi-knife or confined-frame installations
Bottom inlet port with M8 thread accepts Φ45 / Φ51 / Φ60 air supply connections — directs compressed air upward into the blade body from below, keeping all pipework out of the working zone
Internal plenum distributes inlet air pressure evenly along the full blade length, eliminating velocity gradient from the feed point to the far end
Tapered acceleration duct channels equalized plenum pressure into a focused, high-velocity laminar air sheet at the adjustable outlet slot
Outlet gap adjustable from 0.2 mm to 4.0 mm via precision edge screws — wide operating range without disassembly or tooling changes
High-temp silicone gasket end seals (≤250°C) lock pressure inside the blade at both terminations, maintaining consistent airflow velocity across the full knife length
Application Scenarios
The A-D-2's slim bottom-inlet body makes it particularly well-suited to high-density multi-knife arrays, flush-mount machine frames, and any application where side or end clearance is limited:
PCB & Electronics Cleaning Lines — slim body fits between conveyor rails; bottom-feed keeps pipework away from the board surface
Surface Drying — Bottles, Parts & Precision Components — adjustable gap fine-tunes airflow intensity to match varying substrate sizes and conveyor speeds
Dust Removal on Flat Panels & Glass — 0.2 mm minimum gap delivers controlled, non-damaging particle displacement on sensitive optical and display surfaces
Multi-Knife Array Systems — 55 mm width enables tighter knife-to-knife spacing in parallel drying or air curtain array configurations
Overhead & Flush-Mount Installations — bottom inlet eliminates all lateral protrusions, allowing the knife to sit flush against machine frames or ceiling mounts
Heated Process Lines — silicone gasket seals rated to ≤250°C support integration into drying ovens, heat tunnels, and thermal conveyor systems
Technical Parameters
Parameter | Specification |
Model | A-D-2 Air Knife (A-D-2 Adjustable Air Knife) |
Cross-Section Size | 55W × 100H mm |
Main Material | Aluminium Alloy |
Air Inlet Position | Bottom Only |
Air Inlet Size | Φ45 / Φ51 / Φ60 |
Inlet Thread | M8 |
Air Knife Edge Size | 0.2 – 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
In-house CNC precision machining of aluminum alloy extrusions — 55 mm slim body profile, internal plenum, bottom inlet port, and outlet slot all manufactured and inspected on-site
Custom lengths from 50 mm to 4000 mm — same extended range as the A-D model, in a narrower 55 mm body for tighter installation envelopes
Bottom inlet thread (M8), pipe diameter (Φ45 / Φ51 / Φ60), air gap setting (0.2–4.0 mm), and surface finish all configurable per customer order
OEM and ODM manufacturing supported — supply engineering drawings, reference samples, or written application requirements
High-temp silicone gasket seals (≤250°C) fitted as standard — heated-process applications require no special order or additional lead time
Pre-shipment quality checks: pressure integrity test, edge-gap calibration to specified tolerance, M8 inlet thread verification, and full dimensional inspection
Competitive Advantage
Comparison Item | QXY A-D-2 Air Knife | Standard Air Knife |
Air Gap Adjustability | Adjustable 0.2–4.0 mm ✓ | Fixed, not adjustable ✗ |
Inlet Position | Bottom-only — zero side clearance needed | End or side protrusion |
Body Width | 55 mm — narrower than A-D (60mm) | Wider standard profiles |
Inlet Thread | M8 — standard industrial fitting | Custom adapter required |
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 professional manufacturer dedicated to industrial air knife systems, supplying a complete product range that includes aluminum alloy, stainless steel, and PVC air knives, alongside blowers, support brackets, and full system accessories. Our factory operates precision CNC machining equipment under strict process controls, ensuring that each air knife — including its internal plenum geometry, outlet slot calibration, and inlet port threading — is produced and verified to the exact specification required before dispatch.
We work with OEM and ODM clients across the electronics, automotive, food and beverage, pharmaceutical, and general industrial sectors globally. Whether your requirement is a single direct-replacement knife or a fully specified multi-knife drying system, our engineering team engages directly from your drawings, samples, or application descriptions to deliver a solution that installs and performs exactly as needed.
Request a Custom Quote
We support customized air knife length, air gap, and airflow design according to your equipment requirements.
Product Key Selling Points
Slim 55W × 100H mm cross-section with bottom-only M8 inlet — the narrowest bottom-inlet model in the range, designed for high-density or space-restricted installations
Wide adjustable edge gap: 0.2 – 4.0 mm — a single unit handles precision fine-mist drying at the low end and high-volume air curtain separation at the upper limit
Bottom inlet (M8 thread, Φ45 / Φ51 / Φ60) routes all pipework below the knife body — zero side or end clearance required, ideal for flush-mount and overhead configurations
Long customizable length: 50 – 4000 mm — accommodates everything from compact component drying jigs to wide-format industrial drying lines
High-temp silicone gasket seals (≤250°C), factory calibration, and full OEM/ODM support — every unit built and verified to your specification
Product Structure & Working Principle
Slim-profile aluminum alloy extrusion (55W × 100H mm) — 5 mm narrower than the A-D model, reducing lateral clearance requirements in multi-knife or confined-frame installations
Bottom inlet port with M8 thread accepts Φ45 / Φ51 / Φ60 air supply connections — directs compressed air upward into the blade body from below, keeping all pipework out of the working zone
Internal plenum distributes inlet air pressure evenly along the full blade length, eliminating velocity gradient from the feed point to the far end
Tapered acceleration duct channels equalized plenum pressure into a focused, high-velocity laminar air sheet at the adjustable outlet slot
Outlet gap adjustable from 0.2 mm to 4.0 mm via precision edge screws — wide operating range without disassembly or tooling changes
High-temp silicone gasket end seals (≤250°C) lock pressure inside the blade at both terminations, maintaining consistent airflow velocity across the full knife length
Application Scenarios
The A-D-2's slim bottom-inlet body makes it particularly well-suited to high-density multi-knife arrays, flush-mount machine frames, and any application where side or end clearance is limited:
PCB & Electronics Cleaning Lines — slim body fits between conveyor rails; bottom-feed keeps pipework away from the board surface
Surface Drying — Bottles, Parts & Precision Components — adjustable gap fine-tunes airflow intensity to match varying substrate sizes and conveyor speeds
Dust Removal on Flat Panels & Glass — 0.2 mm minimum gap delivers controlled, non-damaging particle displacement on sensitive optical and display surfaces
Multi-Knife Array Systems — 55 mm width enables tighter knife-to-knife spacing in parallel drying or air curtain array configurations
Overhead & Flush-Mount Installations — bottom inlet eliminates all lateral protrusions, allowing the knife to sit flush against machine frames or ceiling mounts
Heated Process Lines — silicone gasket seals rated to ≤250°C support integration into drying ovens, heat tunnels, and thermal conveyor systems
Technical Parameters
Parameter | Specification |
Model | A-D-2 Air Knife (A-D-2 Adjustable Air Knife) |
Cross-Section Size | 55W × 100H mm |
Main Material | Aluminium Alloy |
Air Inlet Position | Bottom Only |
Air Inlet Size | Φ45 / Φ51 / Φ60 |
Inlet Thread | M8 |
Air Knife Edge Size | 0.2 – 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
In-house CNC precision machining of aluminum alloy extrusions — 55 mm slim body profile, internal plenum, bottom inlet port, and outlet slot all manufactured and inspected on-site
Custom lengths from 50 mm to 4000 mm — same extended range as the A-D model, in a narrower 55 mm body for tighter installation envelopes
Bottom inlet thread (M8), pipe diameter (Φ45 / Φ51 / Φ60), air gap setting (0.2–4.0 mm), and surface finish all configurable per customer order
OEM and ODM manufacturing supported — supply engineering drawings, reference samples, or written application requirements
High-temp silicone gasket seals (≤250°C) fitted as standard — heated-process applications require no special order or additional lead time
Pre-shipment quality checks: pressure integrity test, edge-gap calibration to specified tolerance, M8 inlet thread verification, and full dimensional inspection
Competitive Advantage
Comparison Item | QXY A-D-2 Air Knife | Standard Air Knife |
Air Gap Adjustability | Adjustable 0.2–4.0 mm ✓ | Fixed, not adjustable ✗ |
Inlet Position | Bottom-only — zero side clearance needed | End or side protrusion |
Body Width | 55 mm — narrower than A-D (60mm) | Wider standard profiles |
Inlet Thread | M8 — standard industrial fitting | Custom adapter required |
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 professional manufacturer dedicated to industrial air knife systems, supplying a complete product range that includes aluminum alloy, stainless steel, and PVC air knives, alongside blowers, support brackets, and full system accessories. Our factory operates precision CNC machining equipment under strict process controls, ensuring that each air knife — including its internal plenum geometry, outlet slot calibration, and inlet port threading — is produced and verified to the exact specification required before dispatch.
We work with OEM and ODM clients across the electronics, automotive, food and beverage, pharmaceutical, and general industrial sectors globally. Whether your requirement is a single direct-replacement knife or a fully specified multi-knife drying system, our engineering team engages directly from your drawings, samples, or application descriptions to deliver a solution that installs and performs exactly as needed.
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
