Colloid Mill – 3 H.P. & 5 H.P.
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Colloid Mill – 3 H.P. & 5 H.P.

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Product Overview

Colloid Mill is a high-shear size-reduction and wet-milling machine designed for fine grinding, dispersion, emulsification and homogenization of liquid, semi-liquid and suspended products.

The machine operates using a high-speed rotor and stator grinding system that creates intense shear and controlled friction, producing a smooth and uniform product. It is suitable for pharmaceutical, cosmetic, food, chemical, Ayurvedic, herbal, nutraceutical and allied industries.

The Colloid Mill is available in 3 H.P. and 5 H.P. motor configurations, with product-contact parts available in SS 304 / SS 316 / SS 316L according to application requirements.

Description

Technical Specifications

Parameter 3 H.P. Model 5 H.P. Model
Machine Name Colloid Mill Colloid Mill
Model TEW-CM-3 TEW-CM-5
Motor Power 3 H.P. 5 H.P.
Motor Type AC, TEFC Industrial Duty AC, TEFC Industrial Duty
Power Supply 415 V, 3 Phase, 50 Hz 415 V, 3 Phase, 50 Hz
Motor Speed Approx. 2800 RPM Approx. 2800 RPM
Drive Arrangement Direct Drive Direct Drive
Grinding System Rotor-Stator Rotor-Stator
Rotor Material SS 304 / SS 316 SS 304 / SS 316
Stator Material SS 304 / SS 316 SS 304 / SS 316
Product Contact Parts SS 304 / SS 316 / SS 316L SS 304 / SS 316 / SS 316L
Grinding Gap Adjustable Adjustable
Gap Adjustment Micrometric / Manual Micrometric / Manual
Feed Arrangement Hopper / Inlet Hopper / Inlet
Product Outlet SS Sanitary Outlet SS Sanitary Outlet
Base Frame Heavy-Duty Fabricated Heavy-Duty Fabricated
Surface Finish Smooth / Mirror Polish Smooth / Mirror Polish
Control Starter / VFD Optional Starter / VFD Optional
Cooling Arrangement Optional Optional
Operation Continuous / Batch Continuous / Batch
Design GMP-Oriented GMP-Oriented

Working Principle

The product enters the grinding chamber through the inlet and passes between the high-speed rotating rotor and stationary stator.

The small adjustable gap between the rotor and stator creates high shear and friction. This action breaks down agglomerates, disperses particles and promotes uniformity.

The processed product is then discharged through the outlet. The grinding gap can be adjusted according to the required product consistency and degree of size reduction.

Construction Details

  1. Rotor & Stator

The heart of the machine consists of a precision-machined rotor and stator assembly. These components create the high-shear zone required for milling, dispersion and homogenization.

Rotor and stator materials can be selected according to product compatibility.

  1. Grinding Gap Adjustment

The grinding gap is adjustable to control the intensity of milling.

A finer setting generally provides greater shear and finer processing, while a larger gap can be used for products requiring less intensive treatment.

The final gap setting should always be established through product trials.

  1. Motor

The machine is available with:

  • 3 H.P. motor
  • 5 H.P. motor

The motor is selected according to product viscosity, feed rate, grinding intensity and required throughput.

  1. Product Contact Parts

Product-contact components can be supplied in:

  • SS 304
  • SS 316
  • SS 316L

For pharmaceutical, food and cosmetic applications, hygienic construction with polished product-contact surfaces can be provided.

  1. Cooling Arrangement

A cooling arrangement can be incorporated where processing generates significant heat.

Cooling may be provided around the milling chamber or through a suitable external cooling system, depending on the machine configuration and process requirement.

Key Features

  • High-shear rotor-stator milling system.
  • Available in 3 H.P. and 5 H.P.
  • Adjustable grinding gap.
  • Efficient wet milling and dispersion.
  • Suitable for emulsification and homogenization.
  • SS 304 / SS 316 / SS 316L contact-part options.
  • Direct-drive construction.
  • Compact and robust machine design.
  • Easy-to-clean product-contact surfaces.
  • Sanitary inlet and outlet options.
  • VFD speed-control option.
  • Cooling arrangement available.
  • GMP-oriented construction available.

Optional Features

  • VFD speed control.
  • Digital RPM indicator.
  • SS 316L complete contact parts.
  • Special rotor-stator configuration.
  • Fine-gap adjustment system.
  • Cooling jacket/chamber.
  • Flameproof / explosion-proof motor.
  • Sanitary Tri-Clamp connections.
  • Feed hopper.
  • Customized product inlet and outlet.
  • CIP-compatible construction.
  • PLC/HMI control panel.
  • Mobile SS trolley/frame.

Applications

The Colloid Mill is suitable for:

  • Pharmaceutical formulations
  • Ointments
  • Creams
  • Lotions
  • Gels
  • Emulsions
  • Suspensions
  • Syrups and liquid formulations
  • Ayurvedic and herbal preparations
  • Nutraceutical products
  • Cosmetic products
  • Food sauces and pastes
  • Peanut butter and similar products
  • Spice pastes
  • Fruit and vegetable preparations
  • Chemical dispersions
  • Pigments and colours
  • Adhesives
  • Resins

Advantages

  • Produces smooth and homogeneous products.
  • Effective wet milling and dispersion.
  • Reduces agglomerates and particle clusters.
  • Adjustable grinding intensity.
  • Compact footprint.
  • Easy operation and maintenance.
  • Stainless-steel hygienic construction.
  • Suitable for batch or continuous processing.
  • Motor options for different processing requirements.
  • Customizable according to product characteristics.

Model Selection

Model Motor Recommended Duty
TEW-CM-3 3 H.P. Small to medium-duty wet milling, dispersion and emulsification
TEW-CM-5 5 H.P. Medium to heavy-duty wet milling and homogenization

Customization Options

TECHMAC ENGINEERING WORKS can customize the Colloid Mill according to:

  • Motor capacity
  • Product-contact material
  • Rotor/stator material
  • Rotor-stator configuration
  • Grinding-gap range
  • Feed arrangement
  • Outlet size
  • Product viscosity
  • Required throughput
  • Cooling requirement
  • Surface finish
  • Control system
  • Hazardous-area requirements
  • Mounting arrangement

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