stainless steel mixer

mixing machine
mixer
mixer machine
stainless steel mixer

A stainless mixer is a type of mixing equipment mostly made out of stainless steel, specifically designed to uniformly mix materials in various forms.

Compared with carbon-steel units, its core advantage lies in food-grade or industrial-grade stainless steel. The surface is dense and non-flaking, resistant to acid, alkali and high temperature, and hardly wears after long runs. Material is not contaminated by rust or paint, equipment life is doubled, and a simple water rinse is enough for cleaning—maintenance is easier.

From a functional point of view, the stainless mixer mainly works through mechanical stirring and blade rotation. Its core function is to utilize the thrust generated by the rotating blades to continuously collide and mix materials within the sealed stainless steel chamber.

Regardless of whether it’s powdery or granular raw materials, as well as flake, block, and viscous materials in the feed, chemical, and food industries, as long as it’s two or more materials of different properties, it can evenly mix them to ensure the uniform composition and stable performance of the mixed materials.

stainless steel mixer Structure

stainless steel mixer Parameters and Classification

There are several types of stainless steel mixing machines, sorted by their structure design and working way. The SLHJ series single-shaft dual-layer paddle mixers, SLHY series single shaft double screw mixer and SLHSJ series dual-shaft high-efficiency paddle mixers are especially commonly used. Each has its own advantages, and their key parameters are adjusted to match different production requirements. Let’s take a closer look:

 ModelSLHJ1ASLHJ1BSLHJ2ASLHJ2BSLHJ3ASLHJ4ASLHJ6A
Motor connectionDirect connection Direct connectionDirect connectionDirect connectionDirect connectionDirect connectionDirect connection
MaterialCarbon steelstainless steelCarbon steelstainless steelCarbon steelCarbon steelCarbon steel
 Power (kw)11112222303755
Mixing amount per batch (kg/P)50050010001000150020003000
Effective volume (m³)1122346

SLHJ Series Single-Shaft Dual-Layer Paddle Mixer

Structurally, this mixer comes with a single agitating shaft, along with parts like a machine housing, a cover, a discharge mechanism, a motor reducer, a transmission mechanism, and an air outlet.

When it operates, the shaft drives the paddles to turn materials over repeatedly, which finally makes the materials mix uniformly. The motor is connected directly, and the mixer is available in two materials: carbon steel and stainless steel. For example, the SLHJ1B and SLHJ2B models are stainless steel ones—this covers the material demands of different industries.

The effective volume of its models ranges from 1 to 6 cubic meters, and the amount of materials it can mix per batch is 500 to 3,000 kg accordingly. The power of these models is between 11 kW and 55 kW.

It’s designed to be compact, so it doesn’t take up much space—perfect for factories where room is tight. When it mixes materials, it works gently, so it won’t crush them. That’s why it’s great for mixing feed, chemicals, organic fertilizers, and other viscous stuff. If you need to keep these materials in their original state, this mixer does the job really well.

ModelSLHSJ0.5ASLHSJ0.5BSLHSJ1.0ASLHSJ1.0BSLHSJ2.0ASLHSJ4.0A
Motor connectionChainChainChainChainChainChain
MaterialCarbon steelstainless steelCarbon steelstainless steelCarbon steelCarbon steel
Power (kw)5.55.57.57.518.530
Mixing amount per batch (kg/P)  25025050050010002000
Effective volume (m³)0.50.51124

SLHSJ Series Twin-Shaft Paddle Mixer

This mixer is different from single-shaft ones—it has two parallel agitator shafts, with blades placed in a staggered pattern on each shaft. When it works, the two shafts turn in opposite directions, producing strong shear, convection, and diffusion power. This lets materials mix evenly quickly.

This mixer uses a chain to connect the motor, and there are two material options: carbon steel and stainless steel. Like the SLHSJ0.5B and SLHSJ1.0B models—they’re made of stainless steel, so they can meet different needs for cleanliness and rust resistance.

Its specs work well for small to medium-sized production: the effective volume goes from 0.5 to 4 cubic meters, each batch can mix 250 to 2000 kg of materials, and the power is between 5.5 and 30 kW. Compared to single-shaft mixers, it’s better at mixing efficiently—even if you’re using the same material, it gets evenly mixed in less time.

Besides, with the twin-shaft design, materials won’t stick to the inside walls of the machine. This means you waste less material, and cleaning after using it is simpler. It works really well for areas that require accurate mixing, such as the food and drug industries.

ModelSLHY0.5ASLHY1.0ASLHY1.0ASLHY2.5LSLHY3.5LSLHY5.0LSLHY7.5L
Power (kw)47.57.518.5303745
Mixing amount per batch (kg/P)250(manual feeding)500 (manual feeding)500 (pneumatic  feeding)1000 (pneumatic  feeding)1500 (pneumatic  feeding)2000 (pneumatic  feeding)3000 (pneumatic  feeding)
Effective volume (m³)0.5112.53.557.5

SLHY series single shaft double screw mixer

The SLHY series single-shaft, twin-ribbon mixer utilizes a single-shaft drive and twin-ribbon mixing mechanism. This equipment is designed specifically for small and medium-sized feed mills and organic fertilizer processing plants. It is used for mixing powdered materials, ensuring uniform distribution of the mixture components and effectively ensuring the quality of the compound feed.

This series offers a variety of models to suit different production needs, ranging from SLHY0.5A to SLHY7.5L. The equipment’s effective volume ranges from 0.5m³ to 7.5m³, meeting production needs of 250kg to 3000kg per batch. The 0.5A and one 1.0A model feature manual discharge, while the other 1.0A model and the L series models feature pneumatic discharge for more efficient operation.


Various Animal Feed Industries

When producing feed for livestock, poultry, aquatic creatures, or special pets, this mixer mixes raw materials like corn, soybean meal, and vitamins well. So the feed ends up with all the right nutrients.

Food Processing Industries

It uses food-grade materials that meet safety rules. When you’re mixing ingredients for biscuits or milk powder, you don’t have to worry about impurities getting in.

Wood and Biomass Industries

It can evenly mix wood chips and binding materials to produce various wood products. It can also mix sawdust and crop straw with combustion-supporting materials to ensure the stability of biomass fuel.

Organic Fertilizer Industry

Resistant to stickiness and corrosion, mixing manure and straw for fermentation provides high-quality raw materials for subsequent processes.

Widely used in the Chemical Industry

Withstanding the corrosion of chemical raw materials, preventing rust and contamination is particularly critical in fertilizer and paint production.

stainless steel mixer Case Studies in Many Countries

RICHI boasts mature technology R&D, customized solutions, and a comprehensive after-sales service system. We have sold stainless steel mixing machines to over 140 countries worldwide, serving core industries such as feed, fertilizer, food, and organic fertilizer, serving over 300 customers. The following are typical application cases in different countries.

stainless steel mixer for sale Indonesia

stainless steel mixer for sale Indonesia

  • Project: SLHJ series single-shaft paddle stainless mixer for a small and medium-sized feed mill in Indonesia
  • Project Background: This feed mill mainly makes feed for pigs, chickens, and other farm animals. It produces around 10 tons of feed every day.
  • Solution: They picked the SLHJ-1.0 single-shaft paddle mixer, and paired it with a grinder and pelletizer to set up a full livestock and poultry feed production line.
stainless steel mixer for sale Saudi Arabia

stainless steel mixer for sale Saudi Arabia

  • Project: SLHSJ series twin-shaft paddle stainless mixer at a large fertilizer plant in Saudi Arabia
  • Project Background: This fertilizer plant makes compound fertilizer. Doing that means it needs to mix raw materials such as nitrogen, phosphorus, and potassium properly.
  • Solution: The plant brought in two SLHSJ-3.0 twin-shaft paddle mixers and built a dual production line. This way, the mixing efficiency got a big boost.
stainless steel mixer for sale Thailand

stainless steel mixer for sale Thailand

  • Project: Stainless mixer at a food processing plant in Thailand
  • Project Background: This plant makes biscuits and pastries. It needs to mix flour, sugar, oil, and additives—and it has really high requirements for how clean the equipment is.
  • Solution: They chose the SLHJ-0.5 single-shaft paddle mixer, which is made of food-grade stainless steel. This way, the materials don’t get contaminated.
stainless steel mixer for sale France

stainless steel mixer for sale France

  • Project: Stainless mixer at a french organic fertilizer production plant
  • Project Background: This plant makes organic fertilizer from things like livestock manure, straw, and wool. Once these raw materials ferment, they become corrosive—so the equipment needs to resist that corrosion and be simple to clean.
  • Solution: They went with the SLHY series single shaft double screw mixer. It’s all made of 304 stainless steel, and the twin-shaft design is good for handling sticky materials.
carbon steel mixer and stainless steel mixer

Comparison between carbon steel mixer and stainless steel mixer

  • Stainless Steel Mixing Machine: 304 / industrial-grade stainless steel containing rust-resistant alloy components, with better material performance
  • Carbon Steel Mixing Machine: Ordinary carbon steel with spray paint protection on the surface, cost-effective
  • Stainless Steel Mixing Machine: Suitable for all scenarios. It resists high salt in aquatic feed and acid-alkali in organic fertilizer, and mixes humid materials stably without frequent maintenance. Ideal for production with high quality requirements
  • Carbon Steel Mixing Machine: Suitable for dry and non-corrosive scenarios, such as mixing dry corn feed and dry wood chips. It has low cost and can meet basic mixing needs; additional anti-corrosion maintenance is required for humid / corrosive scenarios like aquatic feed and organic fertilizer
  • Stainless Steel Mixing Machine: Suitable for industries requiring hygiene / corrosion resistance such as food (flour, sauce), medicine (pharmaceutical powder), and fine chemicals (acid-alkali raw materials). It can also be used in dry scenarios applicable to carbon steel mixers
  • Carbon Steel Mixing Machine: Capable of mixing dry building materials (cement, sand), and serves as key equipment in coal processing and other industries. It efficiently mixes dry materials, with cost-effectiveness matching the budget needs of these industries
  • Stainless Steel Mixing Machine: Longer service life across all scenarios: 12-15 years in dry scenarios, 8-10 years stably in humid / corrosive scenarios, with more favorable long-term use cost
  • Carbon Steel Mixing Machine: Can operate stably for 3-5 years in conventional dry scenarios, with extended life possible through regular maintenance; enhanced protection is needed in humid / corrosive scenarios, otherwise service life will be shortened
Comparison between carbon steel mixer and stainless steel mixer

Frequently Ask Question

What advantage does stainless steel have over carbon steel?

Stainless resists rust, tolerates high heat and cleans in minutes. Carbon steel can flake and stain; it suits jobs where hygiene is less critical. Stainless is also non-magnetic and will not shed particles into food or pharmaceutical batches.

Single-shaft or double-shaft – which stainless model do I pick?

Single-shaft costs less and works for small batches. Double-shaft mixes faster and gives CV ≤ 3 %, but costs more and needs more floor space. If you need short mixing cycles or handle sticky powders, choose double-shaft.

Can the mixer handle wet material?

Yes. Stainless withstands moisture and sticky pastes. Rinse and dry after each shift to stop lumps or surface spots forming. For very wet pastes, consider a ribbon or paddle with scraper blades.

Can capacity be adjusted later?

Within limits – change speed, mix time or paddle angle. For a big jump, move up a model or add a second unit. Always check motor amp draw after any speed change to avoid overload.

Frequently Ask Question

Any Question?

If you have inquiries about our mixers’ models, applications or after-sales service, feel free to reach out. Our team will respond to your questions promptly and professionally.


Efficient and comprehensive after – sales service:

RICHI machinery has a comprehensive and well – established after – sales service system. It has multiple overseas logistics routes to ensure that machine arrives safely and on time. Later on, if there’s any abnormality with the customer’s machine, we’ll provide after – sales staff to offer preliminary solutions right away. And within 48 hours, we’ll send professional technicians to the site for service, minimizing the customer’s downtime.

Scientific customized services:

We have a diverse and rich product system. With over 200 products, we can meet the needs of various production customers. The company is equipped with a professional R&D and design team. According to your actual situation, whether it is a small stainless steel mixing machine factory or a large stainless steel industrial mixer factory, we will design personalized solutions for you based on the actual situation.

Excellent equipment quality:

RICHI Machinery has won many international authoritative certifications. The company has passed BV certification, ISO9001 International Quality Management System Certification, European CE Certification, and Swiss SGS Certification, among others. You can find us on YouTube.

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