• Spiral Jet Mill
  • Spiral Jet Mill

Spiral Jet Mill

Complete CIP and SIP systems capability

With spiral jet mill technology, the size reduction is achieved by collisions between particles of the substance, previously accelerated by high-speed jet streams. Target PSD is generally below 30μm when adopting this technology.

  • The jet mill is suitable for dry grinding of various materials with Moh’s hardness below 9, especially for the materials with high hardness, high purity and high added value.
  • Constant temperature or low temperature, medium-free grinding,especially suitable for materials of heat sensitive, low melting point, sugary, volatile nature.
  • Capable of ultra-fine milling to D97 < 3 μm
  • No rotating parts, easy to disassemble and clean.
  • Can operate with inert gas in a closed loop system
  • Suitable for Pharmaceuticals, Chemicals and Mineral materials

According to different materials and application industries, the production capacity and particle size range will be different.

Please contact our engineers to customize the equipment for you. Our experts will contact you within 6 hours to discuss your needs for machine and processes.

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What is the working principle of Spiral Jet Mill?

Compressed gas is used to pass the feeder ejector to bring the ground raw materials into the grinding chamber, and driven by the high-speed airflow from multiple nozzles, it is sprayed on the grinding wall in a tangential manner to achieve the effect of friction grinding. By adjusting the longitudinal depth of the grinding chamber, adjusting the grinding pressure or feeding speed, the fineness of grinding can be controlled. Compared with the Spiral Jet Mill, the controllability of the pulverization fineness is less.

What materials work best for Spiral Jet Mill?

Spiral Jet Mill is suitable for most ceramics, glass, abrasives, minerals and polymers, especially APIs used in the pharmaceutical industry. If you are not sure if your particular feed is suitable, here are some material properties to consider.

Good candidates:

Dense materials
Hard materials
Round/spherical materials
Free-flowing materials
Materials that disperse well in air

Poor candidates:

Wet materials
Sticky materials
Entangled materials
Light/fluffy materials
Materials that do not disperse well in air

Predicting whether a material will respond to Spiral Jet Mill successfully can be difficult and often surprising, so it is always worth a feasibility trial to find out. Contact EPIC Powder Machinery today to schedule your material test batch.

How do I choose the right model for my needs?

EPIC Powder Machinery offers one different types of Spiral Jet Mills to choose from. See the table below to compare their basic specifications and system requirements.

Technical parameters of horizontal Spiral Jet Mill / Jet milling machine MQP

Parameter / Model MQW01 MQW02 MQW03 MQW06 MQW10 MQW20 MQW30 MQW40 MQW60 MQW80 MQW100
Feeding size (mm) <1 <1 <1 <1 <1 <2 <2 <2 <2 <2 <2
Particle size D97:μm 5~45 5~45 5~45 5~45 5~45 5~45 5~45 5~45 5~45 5~45 5~45
Processing capacity (kg/h) 0.02~0.1 0.1~1 1-10 5~30 10-20 50-500 100-800 200-1000 500-2000 1000-3000 4000-6000
Compressed gas consumption (m³/min) 1 1 3 6 10 20 30 40 60 80 100
Compressed air pressure (Mpa) 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1 0.6~1

Other Important Factors to Consider When Buying an Spiral Jet Mill

What is the particle size of your feed material?

Feed material greater than 2mm be directly handled by a spiral jet mill. An additional pre-milling option would first be required, such as hammer milling, roller crushing, or jaw crushing.

What is your target particle size?

EPIC Powder Mechinery’s Spiral Jet Mills are able to achieve particle sizes as fine as 1 micron with some materials. However, size distributions typically fall somewhere in the 5–70 μm range.

Is your material combustible?

If you plan to work with a combustible powder, you need to ensure that your Spiral Jet Mill has the necessary suppression systems in place. EPIC can customize any of our models to include explosion suppression systems.

Are your materials abrasive or heat sensitive?

Jet mills are efficient at grinding abrasive materials with minimal wear. This is because the system utilizes particle-to-particle impact driven by airflow, and is mainly composed of wear-resistant surfaces and components. And it can achieve zero metal pollution, controlling the temperature of the crushing chamber in the same time.

If you have more questions. Contact EPIC Powder Machinery today to arrange an engineer to answer your questions.

Show details of our Spiral Jet Mills

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Spiral Jet Mill
Spiral Jet Mill
Spiral Jet Mill
Spiral Jet Mill

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our experts will contact you within 6 hours to discuss your needs for machine and processes.