VJ Instruments'

Lab-Mini Screw Extruder: Tailored Solutions for Pharmaceutical Pelletization

Screw Extruders are versatile and essential tools in the pharmaceutical industry, serving a crucial role in the process of pelletization. These machines are designed to produce pellets of various sizes, ranging from a minimum of 400 microns to a maximum of 2000 microns. With their ability to provide gentle compaction, Screw Extruders are an ideal choice for a wide range of pharmaceutical formulations.
For all your pharmaceutical pelletization needs, our Screw Extruder Model VJExtuder-Labmini stands as a reliable and compliant solution. Contact us today to learn more about how our equipment can enhance your pharmaceutical processes.

Lab-Mini Screw Extruder in Action

In this video, we provide an up-close look at our Lab-Mini Screw Extruder in action. Watch as we demonstrate how this versatile machine can efficiently create pharmaceutical pellets for small-scale trials. From the loading of wet mass to the final product output, you’ll witness the precision and reliability that make our Lab-Mini Screw Extruders ideal for your experimental needs. Join us on this journey and discover the potential it holds for your small-scale trials

Size Variability

Screw Extruders are widely employed for creating pharmaceutical pellets with diverse size requirements. Whether you need fine particles as small as 400 microns or larger pellets up to 2000 microns, these machines can handle the task with precision.

Gentle Compaction

One of the key advantages of using a Screw Extruder is its ability to provide mild compaction. This characteristic is particularly valuable for pharmaceutical formulations, ensuring the integrity of sensitive materials.


  • Hopper: The extruder features a hopper for loading wet mass, facilitating the efficient input of materials.
  • Internal Blades: These blades are connected to gears, which rotate and push the material systematically into the feed hopper of the Extruder Chamber.
  • Extrusion Chamber: The chamber is jacketed from the outside, allowing for the circulation of cold water. This feature helps maintain the temperature of the product, which is vital when working with sensitive materials.
  • Single Screw: The extrusion chamber contains a single screw responsible for transferring the material towards the pressing cam and out through the perforation of the desired diameter screen.

Versatile Output

Screw Extruders are available for R&D batches, with a minimum output of 250 grams. This flexibility is ideal for research and development purposes.

Compliance and Ease of Use

Our Screw Extruders are cGMP-compliant equipment. They are designed as self-standing Table Top Models for R&D scale operations, equipped with a built-in electrical panel for ease of maintenance.


Pharmaceutical Benefits

The use of pellets as a dosage form offers distinct advantages within the pharmaceutical industry, including:

  • Flexibility: Capable of solution/suspension layering and powder layering.
  • Minimal Dust: The process minimizes dust in the working environment, enhancing safety and cleanliness.
  • Improved Flow: Pellets exhibit improved flow characteristics.
  • Enhanced Solubility and Dispersibility: Pharmaceutical pellets often demonstrate better solubility and dispersibility.
  • Improved Cosmetics: Aesthetically, pellets can enhance the final product’s appearance.
Sr. No.SpecificationDetails
1Model NoVJEX – 01
2CertificatesGMP, ISO, CE
3TypeSingle Screw
4Production Capacity2-6 kg/hr depends on formulation.
5Perforated mesh hole diameter

Ø 1 mm standard.

Optional with additional cost:
Ø 0.5 mm
Ø 0.6 mm, Ø
0.8 mm
Ø 1.2 mm
Ø 1.5 mm

6ProductAny Aqua base or solvent base formulation.
7RPM of screw10 to 150 rpm
8Hopper DischargeAuto discharge by gravity
9Electric Accessories230 V 1 Phase 50 Hz
10MOC Contact PartsSS 316
11MOC Non-Contact PartsSS 304
12HardwareStandard Make (Bearing shaft seal of SKF etc or equivalent)
13FinishNon Contact Area Matt Finish Contact area Matt Finish Machine part- Machine Finish
15Drive MotorCrompton or equivalent
16Reduction Gear BoxStandard Make.
17DocumentsUser Manual, Warranty Certificate.
18Electric Consumption1 kWh
19Dimension (LXWXH) in mm525 mm (L) X 305 mm (W) X 455 mm (H)
20Weight50 kg. (Approximately)

Note: Capacities mentioned above depend on samples used and may vary accordingly. VJ Instruments product development is a continuous process so specifications may change without prior notification.

  • Emergency stop switch
  • Auto stop feature when process time completes



CE Certificate

We prioritize quality and safety and proudly display our CE certification which meets EU standards for health, safety, and environmental protection. Our team is dedicated to ongoing training and education for continued compliance and customer satisfaction. Choose us as your trusted partner for quality products and services.


GMP Certificate

Our product/facility meets high safety standards and has earned the internationally recognized GMP certification for excellence. We’re dedicated to quality and safety in everything we do, so you can trust us for safe and high-quality products.


ISO Certificate

Our company is ISO certified and values quality and customer satisfaction above all else. We aim to exceed customer expectations with top-notch service and products, making your business with us a great experience.


MSME Certificate

MSME Certified companies comply with the MSMED Act guidelines and are certified by the government of India. By partnering with an MSME Certified company, you ensure reliable products and services while supporting economic growth.

Frequently Asked Questions

We understand that you may have questions about our Lab-Mini Screw Extruder, its applications, and how it can benefit your specific needs. Here are some common questions and answers to provide you with quick and helpful information:

A Lab-Mini Screw Extruder is a precision machine used in pharmaceutical manufacturing to create pellets of varying sizes. It operates by conveying and compacting materials using a single screw within an extrusion chamber.

Our Lab-Mini Screw Extruder can produce pellets ranging from a minimum size of 400 microns to a maximum size of 2000 microns, providing flexibility for various pharmaceutical formulations.

Gentle compaction is crucial because it helps maintain the integrity of sensitive pharmaceutical materials during the pelletization process. It ensures that the final product remains of high quality.

Pellets offer several advantages, including flexibility for layering solutions/suspensions and powders, minimal dust generation, improved flow characteristics, enhanced solubility and dispersibility, and improved cosmetics.

Yes, our Lab-Mini Screw Extruder is compliant with various industry standards and holds certifications such as cGMP, ISO, CE, and an MSME certificate, ensuring the highest quality and safety standards.

Yes, our Lab-Mini Screw Extruder is suitable for research and development, offering a minimum output of 250 grams. It is designed to meet the specific needs of R&D scale operations.

The machine is equipped with safety features such as an emergency stop switch and an auto-stop feature when the process time is completed, ensuring the safety of operators and the integrity of the process.

To explore the machine’s capabilities and discuss its suitability for your specific needs, please contact our experts who can provide more information and guidance.

International Clients

Industrial Clients

IITs, AIIMS, CSIR, Government and Private Institutes

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