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Rapid Mixer Granulator

Rapid Mixer Granulator

is a multi-purpose processor equally suitable for high speed dispersion of dry powders, aqueous or solvent granulation, and effervescent products and melt pelletization.

亚博群,亚博微信群,鸭脖体育Wet granulation is a common step in the manufacture of many solid dosage pharmaceuticals. Wet granulation can be accomplished in a mixer granulator. A mechanical impeller moves the powder while a liquid binder is applied onto a moving powder bed. Addition of the liquid binder starts the formation of granules. The granulator also has a chopper.

亚博群,亚博微信群,鸭脖体育Impeller and chopper are mainly responsible for wet granulation in the rapid mixer granulator.

Rapid Mixer Granulator is designed to achieve excellent mixing and consistent granules at lower operating cost along with higher productivity. Better mixing and closed control of granule size leads to faster tableting speeds with improved quality and least rejections.

The granulation is conventionally performed in the following process steps :

  • Mixing of dry material at high impeller and chopper speeds for a few minutes.
  • Addition of liquid binder by pouring it on to the powder, while both the impeller and chopper are running at a low speed.
  • Wet massing with both agitators running at high speed.

Impellers :

Impellers are fixed at the bottom of dome shaped stainless steel bowl. It has fully length and two half-length blades. Impellers are designed such a way that small blade lift the material and full length blades push the material to mix well. These impellers break up the wet mass into small pieces and granules.

Chopper : 

亚博群,亚博微信群,鸭脖体育These are specially designed small blades located at the bottom of the dome. The primary function of chopper is to cuts the lumps into smaller fragments those are mixed equally by impeller and aids the bowl or sprayed onto the powder to achieve a more homogeneous liquid distribution. It rotates at high speed (1440/2880) RPM to give easy and uniform granulation. The speed of chopper is responsible for the size of granule. Chopper does not have any significant effect on the granule size when impeller speed is high (above 200 RPM).

Discharge Port : 

The discharge port is mounted horizontally into the dome with vertical downward opening. Granules are unloaded in the container through the discharge port. Opening of discharge port is operated by pneumatic cylinder (compressed air cylinder) that requires 3-5 kg/cm2 pressure of compress air.

Working Principle : 

The Rapid Mixer Granulator is mixing unit with a bottom entry agitator ad side mounted chopper for granulation. It is used for dry blending, wet mixing, preparation of dough and granulation, i.e. cutting of the wet mass into small size granules. It works on the basic principle of agitation of the contents of the bowl at moderate speed and then running a specially profiled cutter blade at high speeds into the wet mass.

亚博群,亚博微信群,鸭脖体育Dry mixing takes about 3-5 minutes to mix the ingredients, wet mixing takes 5-10 minutes to make the wet mass of material while the granulation process takes 5-10 minute to 0.5 mm to 1.5 mm sized granules.

Mixing time consumed in processing is depends upon the ingredients quantity and their particle size.

  • cGMP model.
  • Contact parts in SS 316 & non-contact parts in SS 304.
  • Homogeneous binder distribution.
  • Short batch time & reduce cleaning time.
  • Maximize WIP effectiveness.
  • Pneumatic lid lifting system.
  • Air purges sealing system for main stirrer shaft & granulator shaft.
  • All internal contact parts are polished to the mirror finish.
  • A high speed chopper / granulator are inserted horizontally through wall of bowl to assist blending of powder and to break the product to the granules of required size.
  • The seal housing & drive shaft may be flushed with cleaning water, which is then grained away from the machine through built in drain tubes.
  • Granulator motor is provided with a removable stainless steel covers.
  • All moving part of the machine is totally enclosed.
  • Safety interlocking system such that the machine can’t be started unless & until the mixer cover is properly closed.

OPTIONS AVAILABLE :

  • PLC in the control panel.
  • WIP system.
  • Jacketed bowl with vacuum system.
  • Flame proof motors & electricals.
  • Any other customized feature.

ADVANTAGES :

  • Short batch time.
  • Different layouts available to suit room layouts.
  • Very easy to clean & assemble.
  • Reputed bought outs eliminates frequent breakdowns.
  • Reasonable price.
  • R & D models available from 2 Ltrs to 50 Ltrs / batch with interchangeable bowls.
  • Production models available from 100 Ltrs to 1500 Ltrs.
ModelRMG 10RMG 25RMG 50RMG 100RMG 150RMG 250RMG 400RMG 600RMG 1000
Gross Volume in litres­1025501001502504006001000
Working Volume in litres8204080120200320480800
Main Motor in HP2 / 33 / 53 / 57.5 / 1010 / 1520 / 3030 / 4040 / 5063 / 85
RPM Dual speed750 / 1500750 / 1500750 / 1500750 / 1500750 / 1500750 / 1500750 / 1500750 / 1500750 / 1500
Mixing speed RPM75 / 15075 / 15075 / 15075 / 15075 / 15075 / 15075 / 15075 / 15075 / 150
Chopper motor HP1 / 1.51 / 22 / 32 / 33 / 53 / 55 / 7.55 / 7.510 / 15
RPM Dual speed1440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 2880
Output speed RPM1440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 28801440 / 2880
Weight in Kgs.2009001000140015001800200025003500
Length145014401700235024002550288031003300
Width600700750110014302350245026903150
Height95013101400175021852050227525103035
H-1106013451600190022802585296032503765
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