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LZ Vacuum Dual Shaft Mixer

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Multi Shaft Mixer

LZ vacuum twin shaft mixer, also called twin shaft mixer, is a multi shaft mixer for the production of viscous pastes and suspensions in the cosmetic, pharmaceutical, food and chemical industries. Hydraulic lifting system has more advantages of easy cleaning and maintenance. It’s quite suitable for making different pastes in chemical industry.

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What is vacuum twin shaft mixer?

LZ vacuum twin shaft mixer, also called twin shaft mixer, is a multi functional mixer for the production of viscous pastes and suspensions in the cosmetic, pharmaceutical, food and chemical industries. Hydraulic lifting system has more advantages of easy cleaning and maintenance. It’s quite suitable for making different pastes in chemical industry.

What is vacuum twin shaft mixer made of?

LZ vacuum twin shaft mixer is generally made of vacuum mixing tank, hydraulic lifting system, heating and cooling system, temperature control system, vacuum pump system and electrical control panel etc.

The mixing tank combines in a single vessel one low speed anchor agitator and one high speed dispersers or batch mixers or combination of disperser and homogenizer.

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

How does vacuum twin shaft mixer machine 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 high speed disperser is driven by ABB or Siemens motor and rotates at the speed of 1400rpm producing strong high shear force. The disperser 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 (–0.09Mpa) is powerful to pull out the bubbles generated during mixing, dispersing and homogenizing. It also helps transfer the ingredients from the pre-mixing tanks. The powders are also sucked by vacuum to avoid dust.

Key features of vacuum twin shaft mixer

  • Complete process of mixing, dissolving, dispersing, emulsifying, homogenizing, heating and cooling in one unit
  • Working capacity from 200L to 10000L
  • Suitable for paste and emulsions above 100,000cps viscosity
  • Strong dispersion by top mounted dispersers
  • Strong homogenization by top entry batch homogenizer
  • Outer frame agitator has triangle design for enhanced mixing
  • Variable speed for agitator and disperser or homogenizer
  • Double jackets for heating and cooling
  • Different jacket designs available for steam and electric heating
  • Double temperature probes and controllers for electrical heating in vacuum mixing tank
  • Vacuum system to take out the air bubbles during mixing and to transfer the ingredients
  • All contact parts are made of SS304/316L and mirror polished
  • The specifications of the vacuum dual shaft mixer comply with cGMP regulations
  • Push buttons control panel for easy operation
  • Power supply of 380V, 50Hz, 3 Phase

Technical specifications of vacuum twin shaft mixer

Working capacity (L)Agitator power (kw)Speed (rpm)Homogenizer/Disperser power (kw)Speed (rpm)
2001.50~5040~3000/1400
50040~507.50~3000/1400
7505.50~50110~3000/1400
10005.50~50150~3000/1400
20007.50~5018.50~3000/1400
3000110~50300~3000/1400
5000150~50370~3000/1400

 

Applications of vacuum twin shaft mixer

  • Cosmetics & Toiletries: cream, lotion, wax, mascara, gel, toothpaste
  • Pharmaceuticals: ointment, dental composite, syrup, injection
  • Food: mayonnaise, dressing, jam, butter, margarine, wasabi
  • Chemicals: polyester, synthetic fiber, shoe cream

Options of vacuum twin shaft mixer

  • Fixed cover with bolts or welding to save budget
  • Different slow mixing part designs available
  • Frame type slow agitator for oil pre-mixer
  • Extra openings on the vertical type inline homogenizer for adding hot and cold ingredients and powders
  • Siemens PLC for automation of mixing, dispersing, emulsifying, homogenizing, vacuum, transferring, heating and cooling etc
  • Mettler-Toledo load cells
  • Flow meter automation for feeding liquid oil and water
  • Pressure vessel design for different steam pressure
  • SIP is available upon request
  • Different power supply acceptable

Videos of vacuum twin shaft mixer machine

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