3NAF100 nitrogen protected air classifier project for aluminum powder in Henan ChinaNitrogen-Protected 3NAF100
Metal Powder Case Study

Aluminum Powder Air Classification

D50 8–45 μm · 300–400 kg/h

A verified Henan project used a 3NAF100 nitrogen-protected air classifier for aluminum powder with a reported D50 range of 8–45 μm and capacity of 300–400 kg/h.

Feed SizeNot reported
Final FinenessD50 8–45 μm
Capacity300–400 kg/h
Equipment3NAF100 Nitrogen-Protected Air Classifier
RegionHenan, China
Processing Requirement

Classify Reactive Aluminum Powder in a Protected Atmosphere

The project required a broad adjustable D50 range of 8–45 μm at a reported 300–400 kg/h while processing aluminum powder under nitrogen protection.

For a comparable material, oxygen concentration, dust explosibility, gas purity, pressure control and safe collection must be reviewed alongside classification accuracy.

Testing and Selection

Validate Classification, Safety and Recovery

The reported values document one completed reference. A new metal-powder line should be selected from representative testing because particle shape, oxidation sensitivity, bulk density and feed distribution can change the result.

01 · Material Review

Confirm Powder Properties

Review composition, feed distribution, bulk density, moisture, oxygen sensitivity and explosion characteristics.

02 · Process Test

Measure Cut Point and Recovery

Verify particle-size distribution, usable yield, fines recovery, system stability and gas demand.

03 · Safety Review

Select the Production System

Define protection gas, oxygen monitoring, pressure control, contact materials and collection arrangement.

Equipment Selection

3NAF100 Nitrogen-Protected Classification System

Nitrogen protected 3NAF100 air classifier system for aluminum powder

Typical System Configuration

A comparable aluminum-powder project can be engineered as a closed-loop inert-gas classification system with oxygen and pressure monitoring.

  • Sealed powder feeding
  • Nitrogen circulation and oxygen monitoring
  • 3NAF100 dynamic air classification
  • Closed fine and coarse collection
  • Pressure relief and safety interlocks
Typical system configuration only. The source record does not prove that every listed component was installed in the photographed project.
Processing Flow

Typical Nitrogen-Protected Classification Route

Step 01Inerting and Purge
Step 02Sealed Feeding
Step 03Air Classification
Step 04Closed Collection
Step 05Gas Recirculation
Verified Project Results

Reported Production Parameters

MaterialAluminum Powder
Feed SizeNot reported
Final FinenessD50 8–45 μm
Capacity300–400 kg/h
Equipment3NAF100 Nitrogen-Protected Air Classifier
RegionHenan, China

How to Read This Result

These values come from the authorized project record and describe this reference only. They are not a universal performance guarantee.

A new material should be tested before model selection because feed distribution, operating settings, safety requirements and product recovery all affect capacity and particle size.

Original Test Record

Particle-Size Report

The original report is displayed as supplied. No replacement curve or reconstructed particle-size distribution has been created.

Original aluminum powder particle size report for D50 8 to 45 micron
Original particle-size record supplied with the authorized project material.
More Metal Powder Projects

Related Processing References

Discuss Your Aluminum Powder

Request a Nitrogen-Protected Classification Review

Send the powder properties, target distribution, capacity and safety data for a protected-system review.

  • Material-specific test planning
  • Equipment and process selection
  • Production scale-up review