Twin Screw Extrusion Machine
In the fields of fish feed processing, pet food, and livestock feed processing, twin screw extrusion machines are more suitable for processing various high-oil and high-protein raw material formulations, producing high-quality, palatable feed pellets.
As a professional twin-screw extruder manufacturer, we can provide you with customized feed extrusion solutions. Welcome to consult with our experts.
High-efficiency twin screw Extrusion Machine
We offer 0.5-12T/H twin screw extrusion machines. Their stable production, high adaptability, and simple maintenance make them popular with medium and large-sized feed mills.
The twin screw extrusion machine employs a twin-screw structure. The screws mesh tightly with minimal gaps. This ensures consistent maturation time during material shearing and extrusion, resulting in highly uniform granules with consistent color and hardness. When placed in water, they remain intact for a considerable time. After our 5T/H twin-screw extrusion project in Russia went into production, the client contacted us with great satisfaction. They stated that the produced floating fish feed pellets can float on the surface for up to 24 hours, eliminating the need for frequent water changes, making them very popular with aquaculture farms. A video of the project site is shown on the right.
To meet diverse customer needs, the extruder’s screw speed is adjustable, breaking formula limitations and producing feed pellets ranging from φ0.6–20 mm. This includes sinking, semi-floating, and floating feeds. In other words, one machine can provide you with multiple benefits. If you are interested in dual screw extruders, please contact our sales staff to discuss your needs.
Fish feed plant
Shrimp feed mill
Pet food plant
Poultry feed mill
twin screw Extrusion Machine technical structure
— 리치 머시너리 —
Of the more than 2,000 projects RICHI has undertaken, twin screw extrusion machines have accounted for a significant share. Its popularity is closely related to its scientific structure, wear-resistant materials, and high-quality components. All these superior features will bring you an efficient and convenient production experience.
The twin screw extruder price: $70,000 – $200,000
Features of twin screw extrusion machine：
twin-screw structure
The tightly meshed twin screws are self-cleaning, making it easy to clean and suitable for the production of various feed products.
Durable bearings
The transmission box bearings are SKF bearings. Even under high-intensity operating frequencies, the equipment can still operate stably for a long time.
Turbulent flow discharge device
This setting breaks up high-oil materials that are prone to clumping, reducing the frequency of clogging. In addition, the turbulent agitation thoroughly mixes the material, resulting in more uniform and aesthetically pleasing extruded granules.
movable cutter
You can adjust the pellet length according to production needs because the twin screw extrusion machine’s cutting section uses a movable cutter. Furthermore, each blade is made of spring steel and is perfectly aligned with the die height, resulting in a cutting error of less than ±0.5mm.
More durable
For wear-resistant parts, such as screws and inner sleeves, we use wear-resistant alloys throughout. They possess excellent wear resistance, and under normal maintenance, their service life can reach 4000-5000 hours.
High yield
RICHI distributes shear force rationally to different areas of the extrusion chamber by using various screw elements. There is no need to worry about localized overheating and scorching of the material. It also allows for larger feed rates, resulting in increased production capacity.
Simple to operate
Simple to operate and easy to use. You can monitor the operating status of the twin-screw granulator through the PLC touch screen control system. Process parameters can be changed with a single click, effectively reducing labor costs.
Various models of twin screw Extrusion Machines
Twin screw extrusion machines come in various models, primarily categorized by output capacity. They are suitable for feed manufacturing plants of all sizes, from small to large. Of course, we offer more than just the models mentioned below; we can provide customized solutions, including adjustments to output, production configuration, and equipment coefficients. Please feel free to submit your requirements to our team.
0.5-1T/H small twin screw extruder for sale
With its small footprint, low investment, and easy installation and operation, the mini twin screw extruder is a popular choice for small scale fish feed plants and farms looking to process high-protein feed formulations. It balances cost and quality.
1.5-2T/H Medium twin screw extruder machine
Within this production range, many medium-sized aquaculture plants and pet food processing facilities use it. It can support continuous production of high-protein formulas. The addition of a conditioning system improves starch gelatinization.
3-4T/H medium and large double screw extruder
We have supplied this model of equipment to over 200 overseas projects. It can be described as a highly efficient and low-consumption machine, suitable for processing various commercial fish feeds, high-end pet foods, and functional food.
5-6T/H large twin screw Extrusion Machine
Large-scale aquaculture feed mills and pet food factories typically don’t choose this feed extruder model alone. Instead, they build a complete 사료 생산 라인. This line is highly automated and can adapt to various formulas with rapid adjustments.
8-10T/H Industrial-grade twin extruder machine
Heavy-duty SKF bearings ensure stable production in continuous commercial operations. Their low failure rate minimizes downtime risks. Suitable for very large feed mills or export-oriented production lines.
10-12T/H Ultra-commercial Twin Extruder
This is RICHI’s current highest-volume dual screw extruder model. It is suitable for processing feed formulations with a fresh meat content exceeding 35%. Within this range, output is the primary consideration. It features a heavy-duty gearbox, alloy steel barrel and screw, ensuring durability.
리치 머시너리
Twin Screw Extruder Working Process
To understand a twin screw extrusion machine, you can start by learning how it works. This is an important step in determining if the equipment is suitable for your needs. The entire extrusion process does not rely on extensive manual operation. Our engineers will set the equipment parameters. Afterward, employees only need to place the material into the feed inlet, and the conical twin screw extruder can automatically perform conveying, mixing, shearing, heating, pressurizing, and extrusion molding.
The variable frequency feeding system continuously delivers material to the DDC-Conditioner, where it undergoes steam curing, effectively increasing feed yield.
The material then enters the extrusion chamber. Two screws rotate synchronously, propelling the material forward.
During the conveying process, the screws compress against each other, generating shearing, extrusion, and frictional forces that form uniform clumps of material.
During this process, the pressure inside the chamber gradually increases. As the material passes through the die orifice, it expands rapidly and is then cut into uniform sizes by a cutter, forming high-quality pellets.
Twin Screw Extrusion Machine Technical Specifications
This section contains the parameters for a twin screw extrusion machine. As RICHI technology upgrades, specific data will be determined based on actual production conditions.
| 이축 압출기 | |||||
| 모델 | SPHS75×2 | SPHS120×2 | SPHS150×2 | SPHS185×2 | SPHS185×2 |
| 주 모터 출력 (kW) | 55 | 90 | 110 | 200 | 355 |
| 나사 직경 (mm) | 75 | 120 | 120 | 150 | 185 |
| 급전 전력 (kW) | 1.5 | 1.5 | 1.5 | 1.5 | 2.2 |
| 컨디셔너 출력 (kW) | 7.5 | 11 | 11 | 11 | 11 |
| Conditioner Model | DC400-244 | DC500-244 | DC500-244 | DC600-300 | DC600-300 |
| 차동 컨디셔너 출력 (kW) | 11 | 11 | 11 | 15 | 15 |
| Differential Conditioner Model | DC400×300-244 | DC500×400-300 | DC500×400-300 | DC600×500-300 | DC600×500-300 |
| 처리 능력 (T/H) | 0.5–1 | 1.5–2.0 | 3.0–4.0 | 5.0–6.0 | 10–12 |
| 사료용 염소 사료 펠릿 제조기 | ||||||
| 모델 | CZLH320 | CZLH350 | CZLH420 | CZLH520 | CZLH678 | CZLH768 |
| 주 모터 출력 (kW) | 22 | 37 | 90 | 132 | 185 | 250 |
| 아치 파괴 급전 출력 (kW) | 2.2 | 2.2 | 3 | 3 | 3 | 4 |
| 강제 급식기 출력 (kW) | 0.75 | 0.75 | 1.5 | 1.5 | 1.5 | 1.5 |
| 링 다이 내경 (mm) | 320 | 350 | 420 | 520 | 673 | 762 |
| 최종 입자 직경 (mm) | 4~12 | |||||
| 처리량 (T/H) | 0.5-0.6 | 1.0-1.2 | 1.8-2.0 | 2.8-3.0 | 4-5 | 6-8 |
We also offer 침강식 어사료 공급기, which, with lower power consumption per ton, has lower input costs and is suitable for feed manufacturers with limited budgets.
Application of twin screw extrusion machine
One of the advantages of twin screw extrusion machines lies in their strong adaptability. The twin screws mesh with each other, eliminating the need for friction between the barrel and the material to complete pelleting. Therefore, they can easily handle complex formulations such as high-fat and high-protein formulations without worrying about slippage. You can be more adventurous in experimenting with new formulations to produce high-quality aquatic feed, pet food, and poultry extruded feed.
Suitable for various raw materials
Even with raw materials containing over 40% moisture, over 17% oil, and 35% protein, the twin screw extrusion machine still exhibits superior performance. To improve both output and quality, RICHI provides professional raw material monitoring, which yields detailed data on moisture, oil, and protein content. This data forms the foundation for customized production solutions.
옥수수
밀기울
대두박
어분
어유
프리믹스
Different pellet types
Twin screw extrusion machines can produce sinking, slow-sinking, and sinking feeds. The key is to control the starch and oil content of the raw materials, as well as the die opening size, expansion time, processing moisture content, and temperature. These parameter adjustments can be handled by RICHI’s professional team, who have over 30 years of production experience helping clients produce aquatic and pet food.
Fish feed pellets
When producing fish feed, the internal temperature of a twin-screw extruder can reach 100-150 degrees Celsius. This high temperature can kill bacteria in the material while avoiding excessive damage to the nutrients in the raw materials.
Shrimp feed pellets
To ensure the pellets sink quickly and don’t break apart, the overall temperature is controlled between 105-125 degrees Celsius, reducing the outlet puffing degree, resulting in a final pellet density greater than 1.1 g/cm³.
Pet food pellets
If you want to produce high-quality, palatable pet food pellets, this twin screw food extruder is a good choice. Through a scientifically designed screw combination, it can process formulas with over 35% protein, meeting the nutritional needs of growing cats and dogs.
Poultry feed pellets
Twin screw extrusion machines can also produce high-end poultry feed. Compared to animal feed pelleting mill for sale, extruders achieve a starch gelatinization rate of 80-88%, making it easier to digest. Many feed manufacturers consider that chicks have weaker digestive systems and therefore use extrusion processes to improve feed conversion rates.
Twin screw extrusion machine project
When selecting a suitable twin screw extrusion machine, don’t just listen to what the seller says. Instead, find real-world case studies to help you determine the reliability of the supplier’s capacity data and whether the equipment can meet your actual production needs. Below are some classic 펠릿 공장 프로젝트s for your reference.
1.5-2T/H twin-screw extruder project in Russia
A fish feed factory in Russia is preparing to build a new fish feed production line to meet the procurement needs of surrounding aquaculture farms. A key aspect of this project is the need for a piece of equipment capable of simultaneously and efficiently producing both floating and sinking feed. Ultimately, we selected the SPHS120*2 twin screw fish feed extruder for the project. By adjusting the screw parameters and formula, we were able to produce fish feed pellets with a particle size of 0.6-8mm.
- 프로젝트 유형: 0.6-8mm floating and sinking fish feed + carbonization process
원자재: fish meal, soybean meal, corn, wheat bran, peanut meal, premix, etc. - Installation Period: 40 days
- 주요 장비: Crusher, Twin screw fish feed extruder, Mixer, Cooler, Packaging scale
2-2.5T/H twin screw extruder in food processing for sale in Iran
Client approached us wanting to produce fish and shrimp feed pellets simultaneously. To ensure production volume, we installed dual pelleting equipment on the production line – a 새우 사료 펠릿 제조기 and a twin screw extrusion equipment. This configuration avoids frequent changes in production mode for a single machine, thereby improving production efficiency.
- 프로젝트 유형: Fish feed + shrimp feed pelleting project
원자재: Corn, soybean meal, fish meal, wheat flour, rapeseed meal, vitamin and mineral additives - Installation Period: 60 days
- 주요 장비: Hammer mill, automatic batching scale, twin screw 부유식 어사료 압출기, shrimp feed pellet mill, mesh belt dryer, counter-current cooler, packaging system
5-6T/H twin-screw extruder project in Australia
This is a commercial aquatic feed mill. The client originally had one fish feed production line. However, as order demand increased, the equipment’s capacity gradually became insufficient. After seeing the RICHI twin screw aquatic feed extruder, they communicated with our sales staff, hoping to upgrade their production line, including capacity expansion and automation upgrades.
We retained the customer’s conveyor system and added a twin screw extrusion machine. Simultaneously, to ensure smooth transitions between processes, we increased the output of the crusher, mixer, cooler, and packaging machine. The entire production line is controlled by a PLC system, allowing for one-button switching of equipment parameters and monitoring of granulation. The entire production line requires only 2-3 workers.
- 프로젝트 유형: Automated fish feed extrusion project
원자재: Wheat, barley, rapeseed meal, fishmeal, fish oil - Installation Period: 90 days
- 주요 장비: In addition to the main equipment, the production line also includes 12 30T silos for storing grain raw materials, reducing the impact of raw material fluctuations.
3T/H Pet food extruder for sale in the Netherlands
The client is a pet food OEM manufacturer, primarily processing high-protein, grain-free, and functional complete pet food. Because the raw materials contain a high percentage of fresh meat and require multiple formulations, a twin screw extruder for pet food is the optimal choice. The equipment is equipped with a liquid addition system to ensure timely adjustment of material moisture content. After trial operation, a moisture content of 24%-25% resulted in ideal pelleting.
- 프로젝트 유형: Dog food extrusion project
원자재: Chicken, Beef, Fish Meal, Pea, Cassava, Fish Oil, Vitamin and Mineral Premix - Installation Period: 70 days
- 주요 장비: Crusher, Mixer, twin screw pet food extruder, Cooler, Sprayer, Automatic Packaging Scale
Twin screw extruder process flow
Not only can you obtain a high-quality twin screw extrusion machine from RICHI, but we also provide extrusion production line solutions. Our engineers consider not just a single factor, but a comprehensive evaluation and development of a scientific production plan that takes into account raw materials, output, application, budget, workshop size, and power availability. Below is the complete production process. The production steps may be adjusted according to actual circumstances.
01 Raw Material Processing
Impurities such as stones and dust in raw materials can easily affect the quality of the final product. The processing can also damage the machine. We offer high-quality cleaning machines that can quickly resolve these issues, ensuring smooth subsequent production.
Equipment: Raw material cleaning machine
02 Raw material crushing and mixing
High-efficiency pulverizers break down raw materials into 3-5mm powder. To increase output, materials are typically mixed three times: bulk material mixing, premixed material mixing, and liquid mixing. This batch mixing process significantly improves mixing uniformity.
Equipment: Feed Crusher, Animal Feed Mixer machine
03 Extruded pellets
To improve feeding efficiency, the twin screw extrusion machine is equipped with an anti-arching feeder to prevent material from clogging the die and further increase output.
Equipment: twin screw fish feed extruder
04 Drying and cooling
Freshly produced pellets can have a moisture content of 18%-20%, making them prone to mold and breakage. Cooling and drying equipment can reduce the moisture content to below 13%, making them suitable for long-term storage and transportation.
장비: Belt dryer machine, pellet cooler
05 Spraying and Packaging
If you wish to improve the oil content of your granules and enhance palatability, we can configure a spray coating process to quickly and evenly integrate the oil into the granule pores. The final oil content can reach 15-16%. Afterward, the granules that pass sieving can be directly bagged. We offer an automated packaging system that enables precise weighing, sealing, and packaging, reducing labor costs.
Equipment: Liquid spraying machine, screening machine, automatic packaging scale
왜 RICHI를 선택해야 할까요?
~를 선택함으로써 RICHI 기계, 귀사는 동물 사료 설비 생산 분야에서 30년 이상의 경험을 보유한 제조업체와 협력하게 되며, 신뢰할 수 있는 장기적인 파트너를 얻게 됩니다. 당사는 합리적이고 투명한 가격 정책과 효율적이며 포괄적인 사후 서비스를 제공하므로, 귀사는 안심하고 사료 생산을 진행할 수 있습니다.
탁월한 사후 서비스
After the twin screw extrusion machine arrives, we will carry out professional commissioning and acceptance. Our technicians will repeatedly commission the equipment in each production section to ensure the equipment operates up to standard. Additionally, if you are unfamiliar with our equipment, RICHI technicians will provide one-on-one on-site training until your team can operate the entire production line independently.
맞춤형 디자인
RICHI는 고객 맞춤형 서비스를 제공하기 위해 전담 연구개발 및 설계 팀을 보유하고 있습니다. 당사는 모든 유형의 닭 사료 생산 요구를 충족시키기 위해 200여 종의 제품을 제공합니다. 또한 부지 계획 및 설비 배치를 포함한 전 공정 설계 서비스도 제공합니다. 사료 산업에 처음 진출하시는 분이든 이미 성숙한 생산 라인을 운영 중이신 분이든, 귀하의 요구 사항을 알려주시기만 하면 당사는 귀하의 실제 상황에 맞춘 맞춤형 솔루션을 제공해 드리겠습니다.
고품질 장비 생산
생산 단계는 전체 프로젝트 실행의 핵심 단계입니다. 당사는 두 곳의 현대적인 스마트 제조 기지를 보유하고 있으며, 엄격한 품질 관리 시스템을 운영하고 있습니다. 모든 장비는 국제적 최고 수준의 기준을 충족합니다. 당사는 BV 인증, ISO9001 국제 품질 경영 시스템 인증, 유럽 CE 인증, 스위스 SGS 인증 등을 획득했습니다.
자주 묻는 질문
Various issues may arise during the procurement and operation of equipment for twin screw extrusion machines. Below are several of the most common problems, which we hope will be helpful to you:
1. What are the key differences between single screw and twin screw extruders? How should I choose?
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The biggest difference between them lies in their production processes. Twin screw extrusion machines rely on the meshing of the screws to forcefully push the material. They are less dependent on the material and do not experience frequent slippage during production. Therefore, they excel at producing various high-fat, high-protein pet, aquatic, and poultry feeds. Single-screw extruders rely on the friction between the screws and the material to convey the pellets. They have higher requirements for the materials, and when handling complex formulations, product quality is more prone to fluctuations.
If you are unsure which to choose, first consider your feed formulation. For complex, multi-formulated feeds, prioritize the twin-screw process. For feed mills with simple formulations and lower budgets, the single-screw is the best choice.
Of course, twin screw extruder costs are slightly higher than single-screw extruders. This is due to their more complex structure and higher capacity. For commercial feed mills aiming for continuous production, twin screw extrusion machinerys can well meet their production needs.
2. How long does it take to recoup the cost of a twin screw extrusion machine?
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This primarily depends on production capacity and product price. Producing high-end fish feed, shrimp feed, extruded starter feed, and pet food commands higher prices. Furthermore, compared to single-screw extrusion processes, pellet formation is higher, allowing for 24-hour continuous production. In our experience, most projects achieve cost recovery within 8-14 months.
3. What is the maximum amount of oil that can be added to a formula?
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While twin screw feed extruders are generally not sensitive to oil formulations, excessively high oil content can still cause slippage. We recommend an oil content range of 18-22% for the feedstock. If you wish to produce higher oil content pellets, a spraying process can be added after the cooler. This is especially important for expanded feedstocks, whose porous structure allows for more uniform liquid absorption.
4. What is the normal service life of screws and barrel bushings?
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RICHI screws and barrels are made entirely of alloy steel, renowned for their wear resistance and durability. Under normal production conditions, they can last 8,000-12,000 hours. Before production, it is crucial to ensure the materials are clean, as impurities such as sand and stones will accelerate equipment wear. Before formal production begins, our engineers will provide one-on-one training to the customer team, covering operation and maintenance. With proper maintenance following the instructions, these components can last even longer.
