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Vacuum Sigma Mixer with Heating System

Karvil Machinery delivered a customizable 400L vacuum sigma mixer to our client, specifically designed for processing a challenging blend of organic solvents and rubber-based compounds. This advanced mixing system integrates screw extrusion discharge, steam jacket heating, and full vacuum capability, offering optimal efficiency for high-viscosity, volatile material formulations.
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  • NH-400

Specifications

Key Features & Technical Specifications:

  • Total Capacity: 400 liters

  • Mixing Type: Dual-arm sigma blades with independent variable-speed control

    • Fast shaft: 0–37 rpm

    • Slow shaft: 0–22 rpm

    • Frequency inverter for precise adjustment

  • Discharge System:

    • Screw extrusion type

    • Screw rotation: 0–65 rpm, frequency-controlled

  • Vacuum System:

    • Equipped with vacuum pump, buffer tank, and stainless steel flexible hose

    • Includes vacuum gauge and valve for accurate pressure control

  • Heating Method:

    • Jacketed vessel with steam circulation heating system

    • Operating temperature: up to 70°C

  • Material Contact Surface:

    • SS304 stainless steel, mirror polished for GMP-grade hygiene

  • Lid Features:

    • Hydraulic lifting top cover

    • DN32 liquid feeding port

    • DN250 manhole with sealed access

    • Two observation windows, one fitted with integrated illumination

  • Sealing System:

    • High-resistance fluororubber (FKM) seals for solvent compatibility

Key Features & Technical Specifications:

  • Total Capacity: 400 liters

  • Mixing Type: Dual-arm sigma blades with independent variable-speed control

    • Fast shaft: 0–37 rpm

    • Slow shaft: 0–22 rpm

    • Frequency inverter for precise adjustment

  • Discharge System:

    • Screw extrusion type

    • Screw rotation: 0–65 rpm, frequency-controlled

  • Vacuum System:

    • Equipped with vacuum pump, buffer tank, and stainless steel flexible hose

    • Includes vacuum gauge and valve for accurate pressure control

  • Heating Method:

    • Jacketed vessel with steam circulation heating system

    • Operating temperature: up to 70°C

  • Material Contact Surface:

    • SS304 stainless steel, mirror polished for GMP-grade hygiene

  • Lid Features:

    • Hydraulic lifting top cover

    • DN32 liquid feeding port

    • DN250 manhole with sealed access

    • Two observation windows, one fitted with integrated illumination

  • Sealing System:

    • High-resistance fluororubber (FKM) seals for solvent compatibility

Sigma-Blade-Mixer-with-Screw-Discharge _副本

Technical Parameters

sigma-mixer-karvil-machinery

Customizable Design

  • The material contact part can be SS304, SS316 with mirror polished or carbon steel. The rest part can also be stainless steel and mostly adopt carbon steel with automotive grade industrial paint

  • Sigma blades speed can be adjustable with inverter control; one is fast and another is slow.

  • Discharge method can hydraulic tilting discharging or screw extrusion discharging or both of them.

  • Independent Control Panel: Function control,Schneider electronic components,Circuit breaker protection,Voltage & current showed and etc.

  • Vacuum function( optional): it includes vacuum pump, metal hose, buffer tank and vacuum gauge. Vacuum degree can reach-0.096mpa

  • Heating function ( optional): Electric heating with far ultrared heaters or with jacket for heating transfer oil; Jacket for steam; Jacket for water circulation.

  • Cooling function( optional): Jacket for cooling water circulation or equipped together with a chiller.

  • Other customized function can be discussed.


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Karvil has a professional technical team dedicated to the research, design, and manufacturing of Sigma mixers and ribbon blenders. Our equipment has already been sold to over 50 countries and various industries worldwide.

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