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Conical Paddle Mixer

Hosokawa Micron has a long-held reputation for developing and manufacturing first-class mixing equipment of exceptional quality and the Conical Paddle Mixer is one of the latest additions to the portfolio. Twenty years of R&D by Hosokawa have culminated in this adaptable, energy-efficient vertical batch mixer, which offers a useful range of applications, including the low to mid-shear mixing of fragile powders and ‘instant’ agglomerates, mixing powders with liquids, sterilising and pasteurising batches of product, low temperature vacuum drying and processing of powders, granules and liquids at high temperature.


Product Information

This mixer offers a high level of homogeneity in the end product as frequently demanded by the food & beverage, cosmetic and nutraceutical industries.

Ideal for scenarios where accuracy, processing speed, product integrity and yield are paramount, the Hosokawa Micron Conical Paddle Mixer is a tailor-made, reliable solution that can benefit many processing industries and may be equipped with a variety of optional features and accessories, depending on requirements, including a heating/cooling jacket, lump breaker, sampler, temperature and pressure sensors, liquid injection capability and CIP system.

Expertly engineered in-house, the mixer rotor has been specially designed to avoid product hold up while processing, which not only maximises yield, but optimises hygiene and allows for easy cleaning, making it perfect for food processing.

The Conical Paddle Mixer range is available in sizes from 50 to 15,000+ litres.


Hosokawa Micron’s Conical Paddle Mixer for low to mid-shear batch mixing is available in a range of sizes (with capacities typically ranging from 50 litres to at least 15,000 litres). Larger sizes are possible and available on request. The mixer boasts a variety of complementary optional equipment to enhance functionality, including a new, heavy-duty sampler with excellent-quality seals and vacuum/overpressure tightness for handling critical materials, as well as a lump breaker featuring optional liquid injection capability.

Used for

Hosokawa Micron’s Conical Paddle Mixer is perfect for mixing, drying and reaction processes for a variety of powders, liquids and granules and is ideally suited for processing extremely hot products, fragile powders, ‘instant’ agglomerates and brittle materials. It can also perform low temperature vacuum drying and liquid recovery. Typical applications include mixing chemicals and minerals for pesticides, mixing gypsum, additives and pigments for wallpaper manufacture and mixing sugar granules with mint oil, dextrose, colourings and starch for mint sugar. The equipment also comes into its own in the competitive cocoa industry, where it is used for sterilising and homogenising cacao nibs.

Key Features

  • Compact, smart and robust design
  • Efficient, reliable and highly accurate processing
  • Combines low to mid-shear mixing capabilities
  • Suitable for multiple processes
  • Guaranteed fast and full discharge up to 99.99%
  • Fast, gentle mixing action suitable for fragile material
  • Minimal product distortion
  • Excellent temperature control and energy efficiency
  • Comprehensive range of optional accessories
  • Optional CIP/WIP system
  • Sterile/aseptic design available
  • Available in a range of standard capacities from 50-15,000+ litres
  • Bespoke sizes available
  • Full operating manuals supplied
  • Site installation and commissioning service
  • Customer product trial service available

How Does It Work?

Hosokawa Micron’s Conical Paddle Mixer is a high-performance vertical batch mixer featuring an extremely efficient external drive and central paddle rotor, which provides both vertical and axial motion as it spins in the vessel and is suitable for multiple processes, including heavy duty mixing, chemical reactions and vacuum drying.

Ideal for fragile products and powders, granules and liquids requiring low to mid-shear mixing and minimal distortion, the configuration and design of the single rotor means that it gently and constantly guides 100% of the products to the surface of the batch while keeping them in constant contact with the vessel wall. Gravitational pull (coming from the centre of the mixer) forces the mixture downwards to create a continual, efficient motion even when operated at low speeds.

Importantly, the clever design of the paddle mixer means that heat transfer between the mixture and the vessel is optimised, allowing for both temperature control and energy efficiency during processing.

Conveniently, the adaptable rotational speed of the rotor means that the mixing process can be further optimised. Typically, the rotor speed operates between 1 and 10 metres a second.

Material enters the Conical Paddle Mixer from an inlet in the top, while the large outlet at the bottom of the mixing vessel allows for fast and efficient gravitational discharge of the processed material via its ball segment valve. A typical discharge for a free-flowing powder is an impressive 99.99%. Side outlets and slide gate bottom outlets are also available, in additional to the ball segment valve.

The mixer also benefits from a variety of optional ancillary equipment, including a liquid spraying system with air or non-air supported nozzles and a lump breaker for the product zone with an optional liquid injection system and special sealing of the shaft.

System Solutions

The state-of-the-art Conical Paddle Mixer by Hosokawa Micron can be used as a standalone piece of equipment or as part of a complex, tailor-made process system, which can be designed and expertly made to satisfy very specific processing requirements.

Hosokawa Micron is proud to have accumulated more than a century of first-hand experience and in-depth knowledge of processing and containment technologies for materials such as powders, particles and liquids, including innovative mixing equipment. We work in close collaboration with every customer and are passionate advocates of designing, manufacturing, installing and commissioning the finest high-performance process systems for mixing on the market. Innovation, reliability, efficiency, functionality, ease of use, system integration and equipment longevity are key to our equipment ethos, while we also place extreme importance on adhering to the latest international safety standards and meeting the specific requirements of individual industries.

In addition to the Conical Paddle Mixer itself, we are able to offer tailor-made integrated mixing solutions that combine a variety of processes and are happy to work in collaboration with third party suppliers of process systems or equipment, when required.

Hosokawa Micron understands that an investment in our equipment and process systems should be complemented by peace of mind and 100% confidence that the investment will deliver on every commercial level. We have the capacity and capability to test your product prior to creating a finalised equipment or process system design to determine and ensure the best solution for your needs and are able to offer in-house laboratory-scale and production-size trials at our state-of-the-art testing facilities.

Optional Features

  • Outlets
  • Liquid injection system
  • Sampler
  • Lump breaker
  • Level indicator
  • Dust and watertight access door with seals to FDA standards
  • Knockers (pneumatic/mechanic)
  • Heating/cooling jacket
  • Load cells
  • ISEM ball segment valve
  • Slide gate valve
  • Charging hopper
  • Hinged cover
  • Filter
  • Lifting device/steel structure
  • Temperature sensor
  • Pressure sensor
  • CIP/WIP system
  • Powder and/or liquid dosing
  • System controls
  • Hygienic design
  • Vacuum/pressure design
  • Sterile/aseptic design
  • Wear/corrosion-resistant design


Our expert engineering, product and technical teams have a wealth of processing experience for a wide variety of industries and would be delighted to engineer the best solution for your needs, taking into consideration the specific application, product characteristics and upstream and downstream processes involved, along with your budget and any industry standards that need to be met.

In addition, Hosokawa Micron offers in-depth testing and research services at our state-of-the-art in-house facilities, with skilled and knowledgeable experts on-hand to help you choose the optimum solution for mixing your materials, including bespoke process systems for powders, liquids and other raw materials.

Did You Know?…

Hosokawa Micron offers a huge range of specialist mixing equipment suitable for complex cocoa processing activities, including the Conical Paddle Mixer, which is the perfect solution for efficient, high-quality sterilisation and homogenisation of cocoa nibs prior to alkalisation (which can be achieved by the Hosokawa Micron Conical Paddle Dryer). Batch mixing, lecithinising and instant agglomeration of cocoa-based foodstuffs can be achieved using the well-known and popular Conical Screw Mixer, Vitomix Ribbon Screw Mixer and Flexomix. Additional equipment for classifying and ultra-fine micronisation are also available from Hosokawa Micron.

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