Product

Pharmaceutical Spiral Jet Mill Pulveriser

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

Pharmaceutical Spiral Jet Mill Pulveriser

Introduction of Spiral Jet Mill Pulveriser

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

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

Principle of Spiral Jet Mill Pulveriser

Several 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. Comminution is the result of inter-particle collision caused by the particles flowing at different speeds in the nozzle jet. Because of the free-flowing 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 they have reached the desired fineness.

Jet mill pulveriser is designed according to the special geometry of the mill housing area of the discharge, 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.

Features of Spiral Jet Mill Pulveriser

  • Vertical mill housing for easy handing

  • Stainless steel design, product contact surface is polished

  • Special grinding zone geometry for products free of oversized particles

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

  • Simple design - easy inspection and cleaning

  • No heat generation

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

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

Application of Spiral Jet Mill Pulveriser

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 pulveriser is also suitable for cryogenic applications. Furthermore, by precisely metering the product input and air or steam velocity, highly predictable and repeatable graduation and classification of the finished particles is possible. 

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

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Model

Scale up Factor

No. Of Nozzles

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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