Overview

Fluidized bed Jet Mill

The fluidized bed jet mill is suitable for ultrafine size reduction of a wide range of dry, brittle materials, including hard and abrasive materials with a Mohs hardness of up to 10.

Fluidized bed jet mills are typically used in applications requiring fine micronization, especially when a narrow particle size distribution and high product purity are important.

D97<2μm

Achievable Fineness

±5%

PSD Consistency

1t+

Capacity Per hour

Principle

Precision Classification, Zero Contamination.

Fluidized bed Jet Mill working principle

Material Feeding

The feed material is introduced to the grinding chamber through a rotary valve or a screw feeder. The particles settle in the lower section of the chamber, creating a fluidized bed ready for processing.

Impact & Comminuition

Material is entrained by the high-velocity gas streams created by the nozzles, and size reduction occurs as a result of particle-to-particle collision in the gas stream and at the focal point of the nozzles.

Centrifugal Classification

The coarse and fine particles are separated due to the centrifugal force generated by the rotating classifier. The fine particles that meet the size requirements enter the cyclone separator and dust collector for collection.

Collection & Recovery

The qualified fines exit the mill and are transported to a cyclone separator for primary collection. The remaining ultra-fine dust is captured by a dust collector.

Features

Dynamic Particle Size Control

Narrower PSD

The integrated high-speed dynamic classifier ensures precise control over the cut point. This results in a highly uniform end product with a steep distribution curve and minimal deviations.

Contamination-Free

Since the high-energy impact happens in the center of the grinding chamber rather than against the walls, equipment erosion is significantly reduced. This makes it the ideal solution for processing high-purity materials.

High Automation

PLC-based systems track grinding pressure, classifier speed, and feed rate in real time. A closed-loop feedback maintains consistent product quality.

Specification

LHC Model Specifications
Model	Chamber Ø (mm)	Capacity (kg/hr)	Air Consumption (m³/min)	Working Pressure (MPa)
LHC80	80	0.1 - 1	0.6 - 1.5	0.8 - 1.0
LHC150	150	0.5 - 10	2.5 - 3.5	0.8 - 1.0
LHC200	200	4 - 20	4.0 - 5.0	0.8 - 1.0
LHC300	300	10 - 80	6.5 - 7.0	0.8 - 1.0
LHC350	350	20 - 150	10.0 - 12.0	0.8 - 1.2
LHC450	450	50 - 500	20.0 - 23.0	0.8 - 1.2
LHC600	600	300 - 1500	35.0 - 40.0	0.8 - 1.2

* Capacity values are indicative and depend on material properties, target fineness, and operating pressure.

** The specific feed size depends on the chamber size.

General Parameters

Achievable D97 < 2 - 20 μm
Feed Particle Size (max) ≤ 3 mm
Contact Material Stainless steel / Ceramic
Surface Finish (Ra) ≤ 0.4 μm
Gas Type Air / N₂ / Ar
Chamber Temperature 10 - 20 °C
Certifications CE / GMP / ATEX

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Applications

Battery

Cathode & Anode

Ultra-fine milling of LFP, NCM, NCA, and graphite under inert N₂ atmosphere to prevent oxidation, ensuring electrochemical performance and consistent D50 for electrode coating uniformity.

Ceramics

Advanced Ceramics

For materials with a Mohs hardness above 7, its particle-on-particle impact mechanism eliminates metal contamination from grinding media, preserving material purity.

Chemical

Agrochemical & Pigments

The self-grinding action and absence of moving wear parts prevent metallic contamination, crucial for high-purity pigments and specialty chemicals.

Defense

Reactive Materials

It can be safely operated with inert gas for reactive or explosive materials such as energetic chemicals, metal powders. The fully sealed system prevents oxygen ingress and dust leakage.

FAQ

Answers to the most common technical and commercial questions from procurement managers and process engineers evaluating fluidized bed jet mills.

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In which situation is a Fluidized Bed Jet Mill best used?

Ideal for infrequent changeovers, tight particle size distribution requirements, and medium-to-large production.

Can it be used in pharmaceutical manufacturing?

Rarely. Its complex structure, dead zones, and long cleaning time make it impractical for most pharmaceutical applications.

How is the final particle size controlled?

The final particle size is mainly controlled by:

Classifier speed
Grinding gas pressure
Feeding rate
Material characteristics

Is it suitable for continuous production?

Yes, it supports continuous operation and can be integrated into industrial-scale production lines.