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Rotary Drum Mixer

The Hywell gentle touch mixing technology (gentle mixing machine) is developed for mixing and processing fine powders, granulates, and natural products. the rotary drum mixer use to mix to a high degree of homogeneity in a short time is one of the main advantages of this technology. Even very sensitive, fragile materials can be mixed and processed without degradation, heating up due to friction, or even topical hot spots due to high-speed tooltips (e.g. paddles, ribbons). so the rotary drum mixer is also named a gentle mixing machine or gentle powder mixer.
The key to our rotary drum mixing machine is that rather than paddles or ribbons impacting the product with speed and force displace particles and have these particles hit and move the surrounding product. our technology carries the product to a position for gravity to let it flow and redistribute itself. The beauty of gravity is, that it is the same everywhere. So rather than localized chain reactions of impact, speed, and force we have equal gravity everywhere causing an efficient and gentle mixing flow.
Industrial rotary drum powder mixer are widely used as mixing machines for solid medicine powder in pharmaceuticals, Foods, and Chemicals powders.

  • YYH


  • 8479820090

  • SUS304/SUS316L/Titanium

  • Food/Pharmaceutical/Chemical


Rotary Drum Mixer Introduction

The Hywell Machinery YYH one dimensional mixer is new kind of equipment with high efficiency and simple structure which was improved by our company. the Rotary Drum Mixer is easy to clean up. When operation, the barrel loaded materials will be rotation, motion around central shaft nevertheless material inside the barrel will make three dimensional motion. Therefor the mixing accuracy of material can be compared with two dimensional mixer and three dimensional mixer. the rotary drum mixer is also called one dimensional mixer, rotating horizontal mixer, rotary drum blender.

this rotatory drum mixer is a compact system and it only requires a small space. rotating horizontal blender is easy and simple to operate, and it is quiet and safe. The mixing chamber design is simple, so it's easy to clean. This machine is a most useful mixer for GMP foods and pharmaceutical industries’ use. The rotary drum mixer is also named a gentle mixing machine or gentle powder mixer.

17000L Powder Mixer

17000L Powder Mixer

18000L Powder Blenders

18000L Powder Blenders

big powder mixer

18000L Powder Blender

Big Volume Rotary Drum Mixer Video

Rotary Drum Mixer Working Principles

The rotary drum powder mixer is mainly composed of a barrel, a transmission system (motor, reducer coupling, etc.), and a base (including a controller). The cylinder containing the mixed material rotates at a uniform speed under the drive of the motor. Because the inner wall of the cylinder is welded with a number of special "plates", the material moves in the circular direction along the cylinder wall under the push of the copy board, that is, With the up, down, left, and right direction of movement, and because the board is at a certain angle with the central axis of the cylinder, the material moves forward and backward in the cylinder to achieve the purpose of mixing. the powder mixer is suitable for mixing all powder and granule materials.

Rotary Drum Mixers Specifications


Total volume (L)

Operation Volume(L)

Maximum loading (Kg)


















































































5700X2700X 2950









1.Bigger size up to 30000L are available against request

2.Hywell machinery reserves the right to the design without notice

3.All specifications of the rotary drum mixer are as accurate as is reasonably possible, but they are not binding.

4. If you're looking for a highly-efficient mixing solution for high volume powdered or granular materials, then what you need is a YYH Series Powder Mixer.

Rotary Drum Mixer Video

Gentle Rotary Drum Powder Mixer Application:

Industrial food mixers

The industrial rotary drum blender has proven to be a highly valuable solution in food manufacturing processes. the food powder industrial mixers exercise virtually no shear forces making them particularly suitable for use with fragile and heat-sensitive products. Examples of powders mixed by powder mixers are milk powders, coffee, and vitamin powders.

Industrial chemical mixers

enable a large variety of materials to be treated with a range of processes in one machine.

A wide variety of chemical products and polymers are processed in industrial chemical blenders. Some typical applications are for instance: polymers, compounds, ceramics for electronics Super Adsorbent Powder used in sanitary products, etc. Moreover, Hywell rotary drum powder mixers are suitable for powders. Examples of powders mixed by the powder mixers are detergents, battery powders, and metal powders.

Pharmaceutical blenders

pharmaceutical mixers have proven to be a highly valuable part of the processing of a number of pharmaceutical products.

The fact that the Hywell industrial mixers exercise virtually no shear forces makes them particularly suitable for use with fragile and heat-sensitive products. A typical example of pharma products is the post-blending of agglomerated products with additives.

Rotary Drum Mixer Advantages

The rotary drum powder mixer is ideally suited to delicate and abrasive materials, because, the combination of low speed and no moving parts within the mixer produces a no-shear, gentle mixing action. Hywell machinery tumbler mixers had the following advantages over conventional solutions.

1.    Short mixing times of the rotary drum powder mixer: due to lack of friction, no temperature rises or even topical hot spots

2.    Gentle Mixing of the rotary drum powder mixer: The contraflow blades lift and quickly transfer the fluidized product around the mixer, under these conditions powders and granules of widely different bulk densities and particle sizes can move freely ensuring a rapid and gentle mix.

3.    Low power of the rotary drum powder mixer: Low rotational drum speed and the minimum number of mixing blades combined with no moving parts in the mixer product provide ideal conditions to gently mix flakes or highly abrasive products with minimum wear. This also provides for low maintenance and operating costs.

4.  Low maintenance costs of the rotary drum powder mixer: The efficient mixing blade design combined with no drive parts or bearings being exposed to the product results in minimum power requirements and maintenance-free operation for long periods of continuous running.

5.    Quick and easy to clean to provide good hygienic security

6. The rotary drum mixer's novel design, compact structure, good appearance, and evenness of mixing reach 99%.

7. Highly polished inner and outer surfaces of the barrel, no dead comer, easy to discharge materials, easy to clear, no cross-contamination. Confining the requirement of GMP.

8. Low-cost and highly-efficient way of mixing powdered and granular materials

9. Mirror-polished surface made with durable and high-quality stainless steel

10. CE marking and GMP (Good Manufacturing Practice).

Rotary Drum Mixer

23000L Rotary Drum Mixer

Rotary Drum Mixer

16000L Rotary Drum Blender

Rotating Drum Mixer

8000L Rotating Drum Mixer

Rotary Drum Mixer Options

1.    Machine voume of the rotating drum mixer

Total volume Sizes of tumbler mixer from 600 to 30000 lit. so the Powder tumbler blender often named as big volume blender.

2.    Drum materials of the rotary drum blender 

Drums can be built in SUS304,SUS316L ,Titanium, Duplex stainless steel.

3.    Control system of the rotary drum blender machine

Control system of powder mixer machine has more choices, such as push button or HMI+PLC.

4.    Feeding system of the rotary drum blender

The feeding system for the large capacity blending machine can be by manual or pneumatic conveyor or vacuum feeder.

5. Weight system of the rotary drum mixer

Because of the large volume powder mixer, weighing a single powder in a narrow area is a more difficult problem. The large powder blender can choose the weighing system for automatic feeding and weighing of each material.

5. Optional variable speed shell

Drum mixer

Standard Controller

drum mixing machine

PLC Standard Controller

Rock powder mixer controller

Explosion Proof Button Controller

Rotary Drum Mixers Construction Material

Hywell Machinery is able to offer our YYH Series one dimension mixer with contact parts to be built in SS304, SS316L, Titanium, Duplex stainless steel, etc. The electrical parts of the control system of the Rotary Drum Mixer can be adapted to the customer’s needs.

big capacity mixer

Export 18000L Powder Mixer

blending machine

Export 18000L Drum Blender

powder drum mixer

Export 17000L Powder Blender

Attention to order of the Rotary Drum Mixer

1. When inquiry the YYH Series rotary drum mixer, It needs to supply the materials state powder or granules.

2. When inquiry the YYH Series rotary drum mixer, It needs to supply the density of materials.

3. When inquiry the YYH Series rotary drum mixer machine, It needs to supply the capacity per batch or capacity per hour.

5. When inquiry the YYH Series rotary drum mixer, It needs to decide which kind of feeder that needed to load materials into the mixer.

6. When inquiry the YYH Series rotary drum mixers, It need to decide which kinds of steel for machine-304 stainless steel or 316L stainless steel.

7. Other special requirements.  

Safety Precautions

Safety should be a top priority when operating a rotary drum mixer. Here are some key safety precautions to follow:


Ensure that operators receive proper training on the safe operation of the mixer. They should be familiar with all controls, emergency shutdown procedures, and safety protocols.

Personal Protective Equipment (PPE)

Provide operators with appropriate PPE, such as safety goggles, gloves, and protective clothing, to protect against potential hazards.


Install guards or barriers around the mixer to prevent accidental contact with moving parts during operation.

Emergency Stop

Ensure that an easily accessible emergency stop button or switch is available to immediately halt the mixer's operation in case of any safety concerns or emergencies.

Common Issues and Troubleshooting

Despite their robust design, rotary drum mixers may encounter some common issues. Here are a few troubleshooting tips:

Uneven Mixing

If the materials are not mixing evenly, check if the blades or paddles are properly aligned and in good condition. Adjust or replace them if necessary.

Motor Overload

If the mixer's motor is frequently tripping or overheating, it may be due to excessive material load or an issue with the motor itself. Reduce the batch size or consult a technician to inspect the motor.


If there is leakage around the drum or shaft seals, inspect and replace any worn or damaged seals to prevent product loss and ensure airtight operation.

Case Studies

To illustrate the effectiveness of rotary drum mixers, let's explore a couple of case studies:

Case Study 1: Food Processing Industry

In a food processing plant, a rotary drum mixer was used to blend various dry ingredients for popular snack food. The mixer's gentle tumbling action ensured uniform distribution of spices and seasonings, resulting in a consistent flavor profile. The ability to handle large batch sizes and easy cleanability made the rotary drum mixer a preferred choice for this application, increasing production efficiency and product quality.

Case Study 2: Chemical Industry

In a chemical manufacturing facility, a rotary drum mixer machine was employed to mix different powders for the production of specialty chemicals. The mixer's adjustable rotation speed allowed for precise control over the mixing process, ensuring thorough blending and minimizing the risk of segregation. The rotary drum mixer's versatility and ability to handle various powder densities and particle sizes made it an ideal solution for this complex mixing requirement.

Future Trends

As technology advances, several trends are shaping the future of rotary drum mixers:

Automation and Integration

 Increasing automation and integration of rotary drum mixers with other process equipment are enhancing efficiency and productivity. Integrated control systems, data logging, and remote monitoring capabilities are becoming more prevalent, allowing for real-time process optimization.

Improved Mixing Efficiency

 Ongoing research and development efforts focus on improving mixing efficiency through innovative blade designs, optimized drum geometries, and advanced mixing algorithms. These advancements aim to reduce mixing times, enhance product homogeneity, and minimize energy consumption.


Rotary drum mixing machine play a vital role in various industries, offering efficient and reliable mixing solutions. From food processing to pharmaceutical manufacturing and chemical production, these versatile machines ensure consistent product quality and streamline production processes. Understanding the working principle, types, advantages, applications, and maintenance considerations of rotary drum mixers empowers businesses to make informed decisions when choosing the appropriate mixing equipment for their specific needs.


Q: Are rotary drum mixers suitable for mixing viscous liquids?

A: No, rotary drum mixers can not effectively mix viscous liquids. because the rotating drum mixer design to mix the powder and particles.

Q: Can rotary drum mixers handle abrasive materials?

A: Rotary drum mixers can be constructed with materials that are resistant to abrasion, making them suitable for handling abrasive materials. However, it's important to choose the appropriate drum and blade materials based on the specific application requirements.

Q: What safety precautions should be taken when operating a rotary drum mixer?

A: Operators should receive proper training, wear appropriate PPE, and ensure the presence of emergency stop buttons or switches. Guarding the mixer and conducting regular inspections are also crucial for maintaining a safe working environment.

Q: Can rotary drum mixers be customized to meet specific requirements?

A: Yes, rotary drum blender machine can be customized to meet specific needs. Factors such as drum size, blade design, controls, and automation features can be tailored to suit individual application requirements.

Q: How often should a rotary drum mixer be maintained?

A: Regular maintenance is crucial to ensure the optimal performance of a rotary drum powder mixer. It is recommended to follow the manufacturer's guidelines for routine inspections, lubrication, and cleaning. Additionally, preventive maintenance schedules should be established to address any potential issues before they escalate.


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