What is vacuum multi-shaft mixer?

BXM-V vacuum multi-shaft mixer is a vacuum processing system for the production of viscous paste and suspensions in the cosmetic, pharmaceutical, food and chemical industries. It has similar design as BXM multi-shaft mixer but with hydraulic and vacuum systems and is especially suitable to make toothpaste.

What is vacuum multi-shaft mixer made of?

BXM-V vacuum multi-shaft mixer is generally made of vacuum mixing vessel, hydraulic lifting system, vacuum system, heating and cooling system, temperature control system, electrical control panel etc.

The mixer tank combines in a single vessel one low-speed anchor agitator and one or two high-speed dispersers.

Normally, this agitator is top installed at the center of the vessel for slow-speed mixing and the high-speed dispersers are installed in the room between the shaft and outside wings of the anchor mixer.

How does vacuum multi-shaft mixer work?

During the mixing operation, the anchor agitator rotates clockwise slowly. With the attached Teflon blades, the materials are scraped off the vessel wall and move upwards so they won’t always stick to the wall and burn.

The disperser is driven by ABB or Siemens motor and rotates at the speed of 1400rpm producing strong high shear force. The disperser mixer is even capable of shearing rubber chips, etc rapidly to shorten the dissolving time significantly.

Disperser is also replaceable with batch homogenizer for dissolving, homogenizing, and emulsifying.

Due to the two opposite forces by anchor agitator and disperser, the paste rolls over the vessel from top to bottom and back to top repeatedly. When the paste is completely mixed, the heat from the jacket is quickly transferred to every part through the inside wall.

Water ring type vacuum pump (–0.097Mpa) is powerful to pull out the bubbles generated during mixing, dispersing and homogenizing. It also helps transfer the ingredients from the oil and water phase tanks. The powders are also sucked by vacuum to avoid dust.

Oil hydraulic pump is used to lift the cover of the mixing vessel. Safety devices are equipped to guarantee that the mixing part won’t start when the cover is lifted.

Key features of BXM-V vacuum multi-shaft mixer

l         Complete process of mixing, dissolving, dispersing, emulsifying, homogenizing, heating and cooling in one unit

l         Working capacity from 300L to 10000L

l         Suitable for paste and emulsions above 50000cps viscosity

l         Strong dispersing by top mounted dispersers

l         Outer frame agitator has triangle design for enhanced mixing

l         Variable speed for dispersers and agitator

l         Oil hydraulic lifting system for easy cleaning and maintenance

l         Double jackets for heating and cooling

l         Different jacket designs available for steam and electric heating

l         Double temperature probes and controllers for electrical heating in main emulsifying mixer

l         Vacuum system to take out the air bubbles during mixing and to transfer the ingredients

l         All contact parts are made of SS304/316L and mirror polished

l         The specifications of the vacuum multi-shaft mixer comply with cGMP regulations

l         Push buttons control panel for easy operation

l         Power supply of 380V, 50Hz, 3 Phase

Options for BXM-V vacuum multi-shaft mixer

l         Fixed cover with bolts or welding to save budget

l         Different mixing functions can be set up to provide optimum multiple mixing, dispersing, emulsifying and homogenizing of various materials over a wide range of viscosities

l         Dual or triple mixing shafts according to different requirements

l         Cold mixing design is available

l         Platform for one or more vacuum multi-shaft mixers

l         Panasonic or Siemens PLC for automation of mixing, dispersing, emulsifying, homogenizing, vacuum, transferring, heating and cooling etc

l         Mettler-Toledo load cells

l         Pressure vessel design for different steam pressure

l         Spray ball can be equipped to connect to customer’s CIP system

l         SIP is available upon request

l         Explosion proof motors and electricals

l         Different power supply acceptable

Typical applications of vacuum multi-shaft mixer

Cosmetics & Toiletries: toothpaste, cream, lotion, wax, mascara, gel

Pharmaceuticals: ointment, dental composite, syrup, injection

Food: mayonnaise, dressing, jam, butter, margarine, wasabi

Chemicals: polyester, synthetic fiber, shoe cream, paint, coating, ink

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