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Adjustable Air Knife | Surface Drying of Small Parts & Precision Components

Adjustable Air Knife | Surface Drying of Small Parts & Precision Components

Smallest cross-section in the aluminum alloy air knife lineup: 30W × 60H mm — designed for installations where no standard-size air knife can physically fit

Ultra-small bore inlets: Φ20 / Φ22 / Φ25 — pairs with compact instrument air lines and miniature blower outputs, eliminating the need for large-diameter supply piping

Full 0.1 – 4.0 mm adjustable edge gap — despite its miniature body, delivers the same wide adjustment range as larger models, from precision fine-mist removal to air curtain separation

Three inlet positions: End (both sides), Side (M6 thread), Bottom — complete layout flexibility in an ultra-compact 30 mm wide package

Factory-customizable length 50 – 3000 mm with high-temp silicone gasket seals (≤250°C) — every unit built, calibrated, and verified in-house to specification

Detailed Description

Product Key Selling Points

A-F-Air-Knife 

Smallest cross-section in the aluminum alloy air knife lineup: 30W × 60H mm — designed for installations where no standard-size air knife can physically fit

Ultra-small bore inlets: Φ20 / Φ22 / Φ25 — pairs with compact instrument air lines and miniature blower outputs, eliminating the need for large-diameter supply piping

Full 0.1 – 4.0 mm adjustable edge gap — despite its miniature body, delivers the same wide adjustment range as larger models, from precision fine-mist removal to air curtain separation

Three inlet positions: End (both sides), Side (M6 thread), Bottom — complete layout flexibility in an ultra-compact 30 mm wide package

Factory-customizable length 50 – 3000 mm with high-temp silicone gasket seals (≤250°C) — every unit built, calibrated, and verified in-house to specification


Product Structure & Working Principle

A-F-Air-Knife-Design-drawings 

Ultra-compact 30W × 60H mm aluminum alloy extrusion — the smallest body in the lineup, precision-machined to maintain accurate internal geometry despite the reduced cross-section

Miniature inlet ports (Φ20 / Φ22 / Φ25, side M6 thread) accept small-bore instrument air lines and compact blower connections — no large-diameter supply piping required

Optimized internal plenum ensures even static pressure distribution from the small-bore inlet across the full blade length up to 3000 mm

Tapered micro-duct accelerates compressed air from the plenum into a coherent, high-velocity laminar airflow sheet at the precision outlet slot

Outlet gap adjustable from 0.1 mm to 4.0 mm via edge screws — the full adjustment range of larger models, engineered into a 30 mm wide body

High-temp silicone gasket end seals (≤250°C) maintain airtight terminations at both ends, preserving consistent outlet velocity across the blade length


Application Scenarios

The A-F's 30×60mm miniature cross-section opens up air knife applications in spaces where no standard model can be installed:

Air_knife_multi-industry_usage_scenarios1 

PCB Cleaning Lines — ultra-slim body fits between circuit board components and conveyor guides where standard air knives cannot be positioned

Surface Drying of Small Parts & Precision Components — 30mm width targets narrow drying zones on connectors, small housings, medical devices, and miniature assemblies

Dust Removal on Narrow or Recessed Surfaces — 0.1mm minimum gap delivers controlled airflow into grooves, slots, and recessed features inaccessible to larger knives

Compact Machine Frame Integration — 30W × 60H mm body installs inside sub-50mm clearance gaps in existing machine enclosures, conveyor frames, and tooling fixtures

Optical Component & Sensor Manufacturing — miniature airflow for particle removal on lenses, wafers, and precision sensor surfaces without risk of mechanical contact

Heated Process Equipment — silicone gasket seals rated to ≤250°C allow integration into compact drying ovens, heat-treatment tunnels, and thermal process lines


Technical Parameters 

Parameter

Specification

Model

A-F Air Knife (A-F adjustable air knife)

Cross-Section Size

30W × 60H mm

Main Material

Aluminium Alloy

Air Inlet Position

End (Both Sides), Side (M6), Bottom

Air Inlet Size

Φ20  /  Φ22  /  Φ25

Inlet Thread (Side)

M6

Air Knife Edge Size

0.1 – 4.0 mm (Adjustable)

Customizable Length

50 – 3000 mm

End Sealing

High-Temp Silicone Gasket Seal (≤250°C)

OEM / ODM

Supported


Factory Capability · Customization · Service 

Full in-house CNC precision machining of the 30×60mm aluminum alloy extrusion — including the miniature internal plenum, micro inlet ports (Φ20/22/25, M6 thread), and outlet slot, all manufactured and inspected on-site

Custom lengths from 50 mm to 3000 mm produced to order in the 30×60mm miniature body — with full dimensional verification and pressure testing before shipment

Inlet position (end / side M6 / bottom), pipe diameter (Φ20 / Φ22 / Φ25), air gap setting (0.1–4.0 mm), and surface finish all configurable per customer specification

OEM and ODM manufacturing supported — accept engineering drawings, physical reference samples, or detailed application requirement descriptions

High-temp silicone gasket seals (≤250°C) installed as standard on every unit — no additional cost or lead time for heated-process applications

Pre-shipment quality protocol: pressure integrity test, edge-gap calibration to specified tolerance, M6 inlet thread verification, and complete dimensional inspection


Competitive Advantage 

Comparison Item

QXY A-F Air Knife

Standard Air Knife

Air Gap Adjustability

Adjustable 0.1–4.0 mm ✓

Fixed, not adjustable ✗

Body Cross-Section

30W × 60H mm — smallest in lineup

50mm+ wide typical

Inlet Pipe Size

Φ20 / Φ22 / Φ25 — ultra-small bore

Φ32+ standard bore

Inlet Positions

End (dual) / Side (M6) / Bottom

End only

High-Temp Sealing

Silicone gasket ≤250°C ✓

Standard rubber seal ✗

Min. Installation Space

30mm wide — fits inside sub-50mm gaps

Cannot fit

Customization

Length, gap, inlet, finish

No customization


About Us & Custom Inquiry 

Shenzhen Qixingyuan Machinery Equipment Co., Ltd.

We are a professional manufacturer specializing in industrial air knife systems across a full product range — aluminum alloy, stainless steel, and PVC air knives, alongside blowers, mounting hardware, and complete system accessories. From our largest wide-format models down to the miniature A-F series, every product is manufactured in-house using precision CNC machining under strict quality controls. Each unit undergoes full dimensional inspection, pressure testing, and edge-gap calibration before shipment, ensuring consistent performance from the first installation.

We support OEM and ODM clients across electronics, medical device, automotive, food processing, pharmaceutical, and general manufacturing industries. Whether the requirement is a single miniature knife for a precision cleaning fixture or a complete engineered drying system for a production line, our engineering team works directly from your drawings, samples, or application specifications to design and deliver the right solution.

 

Request a Custom Quote

We support customized air knife length, air gap, and airflow design according to your equipment requirements.

Send us your drawings or application details — our engineering team will design the right solution for you.


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