Structured Manufacturing Data (2026)

Air Filter/Dryer

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Air Filter/Dryer used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Air Filter/Dryer is characterized by the integration of Filter Housing and Coalescing Filter Element. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless steel housing construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A component that removes contaminants and moisture from compressed air in purge systems.

Product Specifications

Technical details and manufacturing context for Air Filter/Dryer

Definition
An air filter/dryer is a critical component within purge air systems that cleans and dries compressed air by removing particulate matter, oil aerosols, and water vapor to prevent contamination and corrosion in downstream equipment and processes.
Working Principle
Compressed air enters the filter/dryer where it passes through filtration media (such as coalescing filters) to capture solid particles and liquid droplets. For drying, the air may pass through desiccant materials (like silica gel or activated alumina) that adsorb moisture through physical or chemical processes, or through refrigeration systems that cool the air to condense and remove water vapor.
Common Materials
Stainless steel housing, Polyester/glass fiber filter media, Activated alumina/silica gel desiccant
Technical Parameters
  • Maximum flow rate capacity (Nm³/min) Standard Spec
Components / BOM
  • Filter Housing
    Contains and protects the filtration and drying media
    Material: Stainless steel or aluminum
  • Coalescing Filter Element Part
    Removes oil aerosols and fine particulate matter from compressed air
    Material: Glass fiber or synthetic fiber media
  • Desiccant Bed Part
    Adsorbs moisture from the air stream through physical or chemical attraction
    Material: Activated alumina or silica gel
  • Drain Valve
    Automatically removes accumulated liquids from the filter housing
    Material: Brass or stainless steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Air Filter/Dryer.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 16 bar (232 psi)
dew point: -40°C to +3°C
flow rate: 0.5 to 100 m³/min (17.7 to 3531 CFM)
temperature: -20°C to 80°C
Media Compatibility
✓ Compressed air systems ✓ Instrument air lines ✓ Pneumatic control systems
Unsuitable: Oil-laden or chemically aggressive atmospheres
Sizing Data Required
  • Maximum air flow rate (CFM or m³/min)
  • Operating pressure (bar or psi)
  • Required dew point (°C or °F)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Filter Media Clogging
Cause: Accumulation of particulate matter, oil aerosols, and moisture beyond design capacity, often due to inadequate pre-filtration, excessive contaminant ingress, or extended service intervals.
Desiccant Saturation
Cause: Loss of moisture adsorption capacity in desiccant beds or cartridges from prolonged exposure to high humidity, thermal degradation, or oil contamination, leading to insufficient air drying.
Maintenance Indicators
  • Visible moisture or oil droplets in downstream air lines or equipment
  • Significant pressure drop across the filter/dryer unit exceeding manufacturer specifications
Engineering Tips
  • Implement condition-based monitoring with differential pressure gauges and dew point sensors to optimize replacement intervals and prevent over-saturation.
  • Install pre-filters and after-coolers upstream to reduce contaminant and moisture load, protecting the primary filter/dryer media.

Compliance & Manufacturing Standards

Reference Standards
ISO 8573-1:2010 (Compressed air purity classes) ANSI/ASHRAE 52.2-2017 (Air-cleaning device efficiency) DIN EN 1822-1:2019 (High efficiency air filters classification)
Manufacturing Precision
  • Filter element dimensions: +/- 0.5mm
  • Pressure drop tolerance: +/- 10% of rated value
Quality Inspection
  • Particle counting efficiency test (per ISO 16890)
  • Pressure decay leak test (per ISO 8573-4)

Factories Producing Air Filter/Dryer

Manufacturer profiles with relevant production capability in China

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

How does this air filter/dryer remove moisture from compressed air?

The unit uses a two-stage process: first, a coalescing filter element captures liquid contaminants and particulates; then, an activated alumina/silica gel desiccant bed adsorbs moisture vapor, delivering dry, clean air for purge systems.

What maintenance is required for the desiccant bed?

The desiccant bed requires periodic regeneration or replacement based on air flow rates and moisture levels. The integrated drain valve automates condensate removal, extending desiccant life and maintaining efficiency.

Why is stainless steel housing important for this application?

Stainless steel provides corrosion resistance, durability in industrial environments, and compatibility with various compressed air systems, ensuring long-term reliability and preventing contamination from housing degradation.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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