Lab Scale Double Cone Blender

Q: What are the key features and technical specifications of the Lab Scale Double Cone Blender?

Model : DCB-5 (Cantilever type, Interchangeable design) Gross Capacity : 8 Liters approx. | Working Capacity : 4 Liters approx. Contact Parts : SS 316 (mirror polished) Motor : 0.5 HP, with VFD control option Discharge : Butterfly valve Other highlights include safety guards, worm reduction gear, easy-clean design, and interchangeable cones for different capacities.

Description

Lab Scale Double Cone Blender is a compact, versatile mixing device used primarily in pharmaceutical, food, chemical, and cosmetic industries for uniform blending of dry powders, granules, and crystalline materials. Its double-cone shape, with two conical ends connected by a cylindrical section, promotes efficient tumbling motion for homogeneous mixing with low shear, ideal for fragile materials. Mixing Efficiency: Double cone blenders have two conical mixing zones, while octagonal blenders have eight-sided entry points, offering more uniform mixing and fewer dead zones for complex blends.

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Salient Features of Lab Scale Double Cone Blender

Compact model.
Interchangeable design hence different capacity cones can be attached on same machine.
The conical shape at both ends enables uniform mixing and easy discharge.
All contact parts are made out of Stainless Steel 316 quality material.
Maximum care has been taken to ensure safe operation of the unit.
Cantilever type design mounted on single shaft.
Safety guards made from SS 304 pipes provided in front of the machine.

Cone will be mirror polished from the inside & outside & structure will be matt polished.
All moving parts covered with SS 304 covers.
Suitable size of butterfly valve at one end of the cone provided for material discharge & hole with open able cover provided at other end of the cone for material charging & cleaning.
Panel fabricated from SS 304 material with facility of three phase indication, start – Stop – Inch Buttons, VFD control.
Worm reduction gear use for speed reduction.
All safety guards & covers made out of SS 304.

Working Principle of Lab Scale Double Cone Blender

The Double Cone Blender operates on the principle of free-flow tumbling, where the vessel’s rotation causes materials to cascade and intermix. The process involves:

Loading: Powders or granules are loaded through the top port(s), typically filling 50-70% of the vessel to optimize mixing.

Mixing: The vessel rotates on its horizontal axis, creating a tumbling motion. The conical shape ensures axial and radial mixing, as materials flow from the ends to the center and back. Mixing time is 5-15 minutes, depending on material properties like particle size, density, and cohesiveness.

Discharge: The vessel is stopped, and the blended material is released through the bottom/side valve, often gravity-fed or assisted by slight tilting.

Technical Specification of Lab Scale Double Cone Blender

Model	DCB – 5
Orientation	Cantilever type
Type of Design	Interchangeable
Gross Capacity	8 Liters approx.
Working Capacity	4 Liters approx.
Contact Parts	Stainless Steel 316 grade 2mm thick plate
Shafting	Stainless Steel
Bearing	Double Roller Bearing
Motor	0.5 H.P., 1440 RPM, 3 Phase, Non-Flame Proof
Electricals	440 volts, 3 Phase, 50 Hertz
Discharge Valve	Through Butterfly Valve
Gear Type	Reduction type gear, Ration 30:1

* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.

Types of Mixer, Blender and Dryer

Multi Mill

Octagonal Blender

Double Cone Blender

V Cone Blender

Ribbon Blender Mixer

Tray Dryer

Vibro Sifter

Rapid Mixer Granulator

Jacketed Mixing Vessel

Heavy Duty Toothpaste Mixer

Applications of Mixer, Blender and Dryer

Advantages of Lab Scale Double Cone Blender

Simple design, easy to clean, and cost-effective compared to other blenders.

Suitable for lubricating dry powders and granules, with minimal maintenance.

Less efficient than octagonal blenders for complex blends due to fewer mixing planes.

Key Components of Lab Scale Double Cone Blender

Design and Construction: Features a double-cone stainless steel body for durability and cGMP compliance, with polished surfaces for easy cleaning. Includes a charging port, discharge valve, and optional safety guards or baffles to enhance mixing.

Capacity: Lab models typically range from 1–50 kg or 2–100 liters, suitable for R&D and small-batch production. Optimal filling is about 50–60% of the volume for effective mixing.

Power and Controls: Equipped with a 0.5–2 HP motor, often with variable frequency drive (VFD) for speed control, digital timer, and RPM display for precise operation. Rotates at low speeds to minimize heat and particle degradation.

Operation: The conical design allows material to tumble and mix via gravity-driven flow, ensuring uniform blending of free-flowing solids, even with varying densities or particle size. Discharge is typically through a bottom valve.

FAQ for Lab Scale Double Cone Blender

What is a Lab Scale Double Cone Blender and what is it used for?

The Lab Scale Double Cone Blender is a compact, low-shear tumble mixer designed for uniform blending of dry powders, granules, and crystalline materials. It is primarily used in R&D labs, pilot plants, and small-batch production in the Pharmaceutical, Ayurvedic, Herbal, Nutraceutical, Biotech, Cosmetic, and related industries. Its gentle mixing action makes it ideal for fragile or heat-sensitive materials while maintaining cGMP compliance.

How does the Lab Scale Double Cone Blender work?

It operates on the principle of free-flow tumbling. The double-cone vessel rotates on a horizontal axis, causing materials to cascade and intermix through gravity-driven axial and radial movement. Materials are typically loaded to 50–70% of the gross volume, achieving homogeneous mixing in 5–15 minutes with minimal shear and heat generation.

What are the key features and technical specifications of the Lab Scale Double Cone Blender?

Model: DCB-5 (Cantilever type, Interchangeable design)
Gross Capacity: 8 Liters approx. | Working Capacity: 4 Liters approx.
Contact Parts: SS 316 (mirror polished)
Motor: 0.5 HP, with VFD control option
Discharge: Butterfly valve
Other highlights include safety guards, worm reduction gear, easy-clean design, and interchangeable cones for different capacities.

What are the main advantages of using a Lab Scale Double Cone Blender?

It offers a simple, cost-effective design that is easy to clean and maintain. The low-shear tumbling action preserves particle integrity, making it suitable for lubricating dry powders and granules. Its compact size, low power consumption, and cGMP-compliant construction (with polished SS 316 surfaces) make it perfect for laboratory and scale-up applications.

How easy is it to clean and maintain the Lab Scale Double Cone Blender?

It is designed for easy cleaning and fast product changeovers. The mirror-polished SS 316 conical surfaces have no dead corners, combined with accessible charging/discharge ports and a cantilever design that allows quick disassembly. This ensures full compliance with GMP requirements in lab and pilot-scale environments.

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