LZ Vacuum Dual Shaft Mixer without Hydraulics

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vacuum dual shaft mixer without hydraulics


General details of LZ series of vacuum dual shaft mixer without hydraulics

What is closed dual shaft mixer?

LZ closed twin shaft mixer is a multi shaft mixer for the production of viscous paste and emulsions in the cosmetic, pharmaceutical, food and chemical industries. It’s especially suitable to make paint, coatings and inks. There’s no vacuum system compared with LZ vacuum double shaft mixer.

What is closed dual shaft mixer made of?

LZ closed two shaft mixer is generally made of closed mixing tank, heating and cooling system, temperature control system, electrical control panel etc.

The closed mixing tank combines in a single vessel one low speed anchor agitator and one high speed disperser or top entry batch homogenizer.

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

How does closed dual 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 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.

Key features of closed dual 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 high speed disperser
  • 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 mixing tank
  • All contact parts are made of SS304/316L and mirror polished
  • The specifications of the closed two shaft mixer comply with cGMP regulationsPush buttons control panel for easy operation
  • Power supply of 380V, 50Hz, 3 Phase

Technical specifications of closed dual shaft mixer

Working capacity (L) Agitator power (kw) Speed (rpm) Homogenizer/Disperser power (kw) Speed (rpm)
200 1.5 0~50 4 0~3000/1400
500 4 0~50 7.5 0~3000/1400
750 5.5 0~50 11 0~3000/1400
1000 5.5 0~50 15 0~3000/1400
2000 7.5 0~50 18.5 0~3000/1400
3000 11 0~50 30 0~3000/1400
5000 15 0~50 37 0~3000/1400

Applications of closed dual 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, sealant, paint, coating, ink

Options of closed dual shaft mixer

  • Different mixing functions can be set up to provide optimum multiple mixing, dispersing, emulsifying and homogenizing of various materials over a wide range of viscosity
  • High speed disperser or top entry batch homogenizer according to different requirements
  • Oil hydraulic lifting system for easy cleaning and maintenance
  • Open cover design for easy operation, adding raw materials
  • Cold mixing design is available
  • Platform for one or more closed two shaft mixers
  • Delta, Schneider or Siemens PLC for automation of mixing, dispersing, emulsifying, homogenizing, vacuum, transferring, heating and cooling etc
  • Mettler-Toledo load cells
  • Pressure vessel design for different steam pressure
  • Spray ball can be equipped to connect to customer’s CIP system
  • SIP is available upon request
  • Explosion proof motors and electrics
  • Different power supply acceptable

Videos of vacuum dual shaft mixer

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