Small Scale Double Cone Blender

A Small Scale Double Cone Blender is a compact, low-shear mixing device designed for uniform blending of dry powders and granules in small batches, typically ranging from 5 to 100 liters. Its distinctive double-cone shape, with two conical ends connected by a cylindrical section, facilitates efficient mixing through tumbling motion. Widely used in pharmaceuticals, food, chemicals, and cosmetics, it is ideal for R&D, pilot plants, or small production runs where precision, hygiene, and minimal material degradation are critical.

Small Scale Double Cone Blender Video

Key Components

• Double Cone Vessel: A stainless steel (SS304/SS316) container with two conical ends, polished for GMP compliance. Capacities typically range from 5-100 liters for small-scale models.

• Drive System: Electric motor with a gearbox for controlled rotation. Variable frequency drives (VFDs) allow speed adjustment.

• Charging/Discharge Ports: Top port(s) for loading; bottom or side valve for discharge, often manually or pneumatically operated.

• Frame/Stand: Robust mild steel or SS stand, sometimes with lockable wheels for mobility.

• Control Panel: Includes start/stop, speed control, and safety interlocks.

• Optional Features: Spray nozzles for liquid addition, vacuum loading, or jacketed cones for heating/cooling.

Working Principle

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:

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

2. 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.

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

Applications

• Pharmaceuticals: Blending APIs with excipients for tablets, capsules, or sachets; ideal for R&D and pilot batches.

• Food: Mixing spices, seasoning blends, powdered supplements, or instant mixes.

• Chemicals: Homogenizing pigments, fertilizers, or polymer powders.

• Cosmetics: Blending powders for talc, foundations, or bath salts.

• Other: Suitable for nutraceuticals, herbal powders, or small-scale chemical formulations.

Advantages

• Uniform Mixing: The conical shape ensures three-dimensional mixing, achieving high blend uniformity.

• Gentle Handling: Low-shear tumbling preserves particle integrity, ideal for friable or sensitive materials.

• Compact and Scalable: Small footprint suits labs or pilot plants; designs scale to larger units.

• Ease of Cleaning: Polished SS surfaces and removable baffles (if present) facilitate cleaning, meeting GMP standards.

• Cost-Effective: Low power consumption (0.5-3 kW) and minimal maintenance compared to high-shear mixers.

Salient Features of Small 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.

• 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.

• Cone will be mirror polished from the inside & outside & structure will be matt polished.

• All moving parts covered with SS 304 covers.

• Safety guards made from SS 304 pipes provided in front of the machine.

• 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.

Technical Specification of Lab Scale Powder Mixer

* 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.