Jet Mill

Pharmaceutical Spiral Jet Mill Pulverizer

The spiral jet mill is designed for dry grinding soft to medium-hard materials of pharmaceuticals and certain chemical powders.

Pharmaceutical Spiral Jet Mill Pulverizer

Introduction of Spiral Jet Mill Pulverizer

Jet milling machines and components are manufactured for precision, reliability and durability.

The spiral jet mill is designed for dry grinding soft to medium-hard materials of pharmaceuticals and certain chemical powders.

Principle of Spiral Jet Mill Pulverizer

A number of grinding nozzles generate an air vortex that rotates at high speed in the grinding chamber. The feed material is fed to the grinding chamber via an injector. The feed product circulates close to the nozzle ring and thus gets caught up repeatedly in the air jets exiting the nozzles. Communition is result of inter-particle collision caused by the particles flowing at different speeds in the nozzle jet. Because of the free vortex, a classifying effect is generated, meaning that only fine particles can exit the mill through the center and be collected in a cyclone or filter. Coarse particles remain the grinding chamber until such time as they have reached the desired fineness.


Jet mill pharmaceutical are designed with special geometry of the mill housing in the area of the discharged, which contributes towards a finer classification effect and a sharp top-cut.The mill settings can be adjusted by varying the grinding air flow rate, feeding rate, nozzle angle and the grinding gas pressure.

Applications of Spiral Jet Mill Pulverizer

The milling process involves no moving parts or screens and is suitable for virtually any friable or crystalline materials, even materials that are very abrasive. 

Jet milling machine is also suitable for cryogenic applications. Further, by precise metering of the product input and air or steam velocity, highly predictable and repeatable graduation and classification of the finished particles is possible. 

Jet mill pulverizers serve many applications throughout the pharmaceutical, chemical, cosmetic and food industries.

Applications of Spiral Jet Mill Pulverizer.jpg

Features of Spiral Jet Mill Pulverizer

  • Vertical mill housing for easy handing

  • Stainless steel design, product contact surface with a high quality of finish

  • Special grinding zone geometry for products free of oversized particles

  • Micronising in the ranged of d97=5-40um and yields can be 99.5% of batch size.

  • Simple design- easy inspection and cleaning

  • No moving parts

  • No heat generation

  • Easy scale up maintaining the same PSD (Particle Size Distribution).

  • Jet mill in top or bottom discharge configurations in Lab system

Model

Scale up Factor

No. Of Nozzle

Air Flow-Rate at 6 bar g

SED-1QF

0.075

4

18 m3/h

SED-2QF

0.25

4

45 m3/h

SED-3QF

0.4

6

110 m3/h

SED-4QF

1

6

200 m3/h

SED-5QF

2.5

18

420 m3/h


Type

Power

Amplification Factor

Air Flow

 

Capacity

Particle Size

SED-1QF

3.08kw

0.075

0.25 ( m3/min)

Batch size 2-60g

D97

SED-2QF

8.6kw

0.25

0.8 ( m3/ min)

Batch size 50-300g

D97

Batch size 300-1000g

D97

Batch size 1-5kg

D97

SED-3QF

19.55kw

0.4

2 ( m3/ min)

10-20kg/h

D97

SED-4QF

-

1

4 ( m3/ min)

20-50kg/h

D97

SED-5QF

-

2.2

8 ( m3/ min)

50-120kg/h

D97

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