Rapid Mixer Granulator (RMG)

Rapid Mixer Granulator — Manufacturer, Supplier & Exporter in India

Bipin Pharma Equipment is a renowned Rapid Mixer Granulator manufacturer in India, specialising in the design and export of high-quality pharmaceutical machinery since 1995. With decades of expertise, we engineer innovative granulation equipment tailored to the pharmaceutical, chemical, nutraceutical, and food processing industries. Our Rapid Mixer Granulator (RMG) is trusted by manufacturers across India and 25+ countries for its performance, reliability, and GMP-compliant construction.

What is a Rapid Mixer Granulator (RMG)?

A Rapid Mixer Granulator (RMG), also known as a High Shear Mixer Granulator, is an essential piece of equipment in pharmaceutical production, specifically designed for the efficient mixing and wet granulation of ingredients. This machine enhances the uniformity and quality of granules, making it the preferred choice for tablet and capsule manufacturing. Featuring a mixing bowl, bottom-driven impeller, high-speed chopper, discharge port, and advanced control systems, the RMG combines dry mixing, wet massing, and granulation in a single closed GMP-compliant bowl.

In a standard wet granulation line, the RMG is positioned upstream of the Fluid Bed Dryer — the RMG produces wet granules, which are then dried in the FBD before milling, blending, and compression. To understand where the RMG fits in the full process, see our guide on wet vs dry granulation.

Key Features of Rapid Mixer Granulator

Material of Construction

The Rapid Mixer Granulator is available in MS, SS304, SS316, SS316L, and Hastelloy. Various kinds of fluoropolymer coating on contact surfaces — including Halar, PP, ETFE, PFA, and PVDF — are available for corrosion-sensitive and specialised applications. For pharmaceutical GMP applications, SS 316L with mirror-polished contact surfaces (Ra ≤ 0.8 µm) is standard.

How a Rapid Mixer Granulator Works

The RMG operates in a sequence of controlled stages that transform a dry powder blend into uniform, dense granules:

1. Dry Mixing: API and excipients are charged into the bowl and dry mixed by the impeller at low speed for 3–5 minutes for uniform distribution.
2. Binder Addition: Liquid binder (aqueous PVP, HPC, starch paste) is added through the top port or spray nozzle.
3. Wet Massing: The impeller speed increases and the chopper activates — distributing the binder and forming granules through high-shear action.
4. End-Point Control: Granulation end-point is monitored via impeller motor power consumption or sampling, ensuring optimal granule size and density.
5. Discharge: Wet granules are discharged from the bottom outlet directly into the Fluid Bed Dryer for drying.

Advantages of Using Rapid Mixer Granulators

• Increased Efficiency: Performs mixing and granulation within a short time frame, boosting productivity.
• Uniform Granulation: Delivers consistent quality by ensuring even distribution of all ingredients.
• Versatile Applications: Suitable for a wide variety of formulations across multiple industries.
• Minimized Dust Generation: The wet granulation process reduces airborne dust, ensuring a safer working environment.
• Scalability: Available in multiple models handling batch sizes from small-scale R&D to large industrial production.
• Better Tablet Quality: Produces dense, free-flowing granules that compress into harder, more uniform tablets.

Applications of Rapid Mixer Granulators

• Pharmaceutical Manufacturing: Ideal for producing granules for tablets and capsules.
• Food Industry: Used for mixing and granulating powders for various food products.
• Chemical Industry: Helps create uniform mixtures and granules for chemical formulations.
• Nutraceuticals: Granulation of vitamin and mineral premixes, herbal formulations.
• Coating and Drying: Some models support additional functions like coating and integrated drying.
• Homogenization: Efficiently blends powders and liquids for consistent formulations.

Rapid Mixer Granulator — Models & Technical Specifications

We offer a wide range of RMG models tailored to different production needs, from 3 litre R&D units to 1200 litre production-scale granulators:

Specifications are indicative and subject to change for product improvement. Custom configurations available on request.

RMG in the Pharmaceutical Wet Granulation Line

The Rapid Mixer Granulator is the first major step in a wet granulation tablet manufacturing line. The complete process flow is:

Why Choose Bipin Pharma Equipment?

• Expertise: Decades of experience in pharmaceutical machinery manufacturing since 1995.
• Innovation-Driven: Continuous product development to meet evolving industry standards.
• Global Reach: Trusted by clients in 25+ countries for reliable machinery and excellent after-sales support.
• Customization: Ability to design and deliver tailored solutions for specific batch sizes and applications.
• GMP Documentation: Complete DQ/IQ/OQ/PQ support and Factory Acceptance Testing (FAT).

Frequently Asked Questions

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