Double Arm Tiltling Kneader

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  • NH-50

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.

Technical Parameters



  • Professional Consultation: Karvil Machinery provide expert guidance and consultation to help customers choose the right mixer for their specific needs. This may involve discussing the type of materials to be mixed, batch size, required mixing speed, and other relevant factors.

  • Installation: Karvil Machinery provides installation services or guidance to ensure that the mixer is set up correctly and safely at the customer's facility.

  • Training: Karvil Machinery offers training programs for operators and maintenance personnel. This ensures that the equipment is used efficiently and safely and helps minimize downtime and maintenance issues.

  • Quality Assurance:  Karvil Machinery offers quality assurance services, including product testing and validation, to ensure that the mixer meets industry standards and specifications.

  • Warranty Services: Karvil Machinery provides warranties on their mixers, covering specific components or the entire machine. We offer warranty support, including repairs or replacements, if the mixer experiences issues within the warranty period.

How a sigma mixer works

Mixing Chamber: The sigma mixer consists of a mixing chamber, which is a trough-shaped container with a hinged top lid for loading and unloading materials.

Blades: Inside the mixing chamber, two sigma-shaped blades are mounted on separate shafts. These blades can be tilted or adjusted to various angles, depending on the specific mixing requirements. The blades are typically made of stainless steel or other durable materials to withstand the rigors of mixing various substances.

Material Loading: The materials to be mixed or kneaded are loaded into the mixing chamber through the top lid.

Rotation: The sigma mixer operates by rotating the sigma blades in opposite directions. One blade moves clockwise while the other moves counterclockwise. This counter-rotation creates a shearing and kneading action, which effectively mixes the materials.

Kneading Action: As the blades rotate, they continuously fold and knead the materials. The materials are pushed back and forth, trapped between the blades and the chamber walls. This kneading action promotes uniform mixing, dispersion of additives, and even distribution of components within the mixture.

Heating or Cooling: Many sigma mixers are equipped with heating or cooling jackets that allow temperature control during the mixing process. This is particularly important when working with materials that are sensitive to temperature changes.

Discharge: After the mixing process is complete, the lid is opened, and the mixed material is discharged from the mixer, typically through a bottom discharge valve or port.

Cleaning: Cleaning the sigma mixer is relatively easy due to its design, which minimizes material buildup and facilitates access to all interior surfaces for thorough cleaning between batches.

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