China Professional Lab Plastic Extruder Manufacturer — Granuwel

Laboratory twin screw extruder is mainly used in the research and development of polymer plastics, mainly for universities, enterprises and research institutes. The main feature is that the screw diameter is small, which greatly reduces the use of materials in the application and development.

China Professional Lab Extruder Manufacturer — Granuwel

Lab Extruder For Sale

The laboratory twin-screw extruder is mainly used for experimental teaching in laboratories and research institutes of various colleges and universities, or research and development of new products in plastic processing plants, so as to understand the performance of raw materials and auxiliary materials, formula and batching operation.

The extruder adopts the form of twin-screw in order to fully stir the materials so as to achieve the best mixing and plasticizing effect. The twin-screw extruder is composed of frame, main motor, coupling, transmission box, feeding system, mixing and extrusion system, heating and cooling system, lubrication system, vacuum exhaust system and electrical control system.

The laboratory twin-screw extruder granulation line is mainly composed of twin-screw extrusion, die head, cooling unit, drying unit and granulation unit. The cooling unit has two forms: water cooling and air cooling.

Generally, the water cooling mode is to configure the water tank and the drying unit; Air cooling is to configure conveyor belt.

The granulation method depends on the performance of the material. The material is plasticized by the extruder and extruded into a round strip. After water cooling or air cooling, the round strip is pulled to the pelletizer and cut into cylindrical particles.

Application range:

1. Used for mixing and granulation of materials
2. Plasticization and conveying of materials
3. Blending modification and reactive extrusion of composite materials
4. Mixing and mixing of general materials, engineering plastics, elastomers and other materials
5. Polymer Reinforcement Modification
6. Material dehydration, devolatilization and exhaust

Main Features

Prospective

Experimental twin screw granulation is the research and development tool of many enterprises, and it is the vanguard of new products and new processes.

Versatility

With conveying, plasticizing, refining, cutting, vent, building pressure and extusion and other functions, a device can easily achieve most of the development of new materials.

Flexibility

The "building block" design can flexibly combine screw elements according to the material process requirements to achieve the ideal structure. At the same time, worn parts can be partially replaced to reduce maintenance costs.

Accurate measurement and reasonable feeding method

Equipped with a variety of feeding methods, such as volumetric feeding, weight loss feeding, etc., to ensure strict implementation of the formula, to ensure product quality.

Advanced control system

The extusion machine is equipped with advanced and beautiful control system, and the control components are of good quality and high sensitivity. Touch screen and Siemens PLC centralized control system can also be configured according to customer requirements, which is highly intelligent and easy to operate.

Various pelletizing methods

The system is equipped with a variety of granulation methods, such as water-cooled drawing granulation line, underwater granulation line, and air-cooled hot surface granulation line. It can be configured according to different materials and user requirements.

Unique barrel structure design

The barrel can be designed as the upper and lower split structure, which is fast to open and easy to clean, providing first-hand mixed information for the research and development of new materials.

Application fields

General plastics, engineering plastics, elastomers and other materials mixing extusion granulation production line.

Composite modification and reaction extusion production line.

High efficiency mixing production line of polymer alloy.

Polymer filling, strengthening and modifying production line.

3D filament printing.

Lab Extruder Specifications

모델	지름(mm)	Max.L/D	속도(rpm)	전력(kw)	출력(kg/h)
GTE20B	22	68	600	3/4	3~10
GTE20C	22	68	600	5.5/7.5	5~20
GTE20D	22	68	750	7.5/11	10~30
GTE26B	26	68	600	5.5/7.5	5~20
GTE26C	26	68	600	11/15	10~40
GTE26D	26	68	600	15/18.5	20~60
GTE30B	30.2	68	600	7.5/11	10~30
GTE30C	30.2	68	600	18.5/22	20~60
GTE30D	30.2	68	600	22/30	40~100
GTE35B	35.6	68	600	15/18.5	20~50
GTE35C	35.6	68	600	30/37	60~100
GTE35D	35.6	68	600	37/45	100~150
GTE40B	41.1	68	600	15/18.5	20~50
GTE40C	41.1	68	600	30/37	80~120
GTE40D	41.1	68	600	37/45	100~180

실험실 압출기

Generally, the water cooling mode is to configure the water tank and the drying unit; Air cooling is to configure conveyor belt.

Application range:

실험실 압출기

Generally, the water cooling mode is to configure the water tank and the drying unit; Air cooling is to configure conveyor belt.

Application range:

Main Parts of Twin Screw Extruder

Material of the gear	20CrNi2MoA, carburized Hard Face Gear
Hardness of gear surface	HRC 58-60
Ratio	2.5
Speed input/output	1500rpm/600rpm
Output torque to Screw	Involute spline transfer torque
Bearings	imported NSK/INA bearings, Integrated thrust bearing assembly

Screw elements materials	W6Mo5Cr4V2, the surface hardness after high temperature vacuum quenching. Hardness: HRC58-64
Mainly including	Conveying element, mixing element, reverse element, kneeding element.
Structure	Co-rotating parallel modular closely intermeshing.
Core shaft material	high strength alloy steel (40CrNiMoA) material, high strength quality adjustment, hardness 300-350HB, compound forging, improve strength and toughness, ensure the transmission of screw torque.

Speed control:
Adopt frequency conversion control with brand frequency converter ABB or YASKAWA.

Temperature control:
Temperature control meter adopt Japanese Omron temperature control meter, double channel, PID algorithm, intelligent type, or adopt PLC(Programmable and Logical Control) with Siemens touch screen and intelligent temperature control meter.

Over loading protection:
The main motor and feeder have the functions of over current, under voltage, phase absence, over heat and shutdown protection.

Interlocking control:
Interlocking control of main motor with feeder, gear box lubricating oil pump, melt pressure sensor, melt temperature controller. Cooling solenoid valve interlocking with water pump to prolong the service life of solenoid valve.

폭넓은 애플리케이션 경험

생분해성 플라스틱은 박테리아, 곰팡이, 조류와 같은 자연 미생물에 의해 분해되는 플라스틱입니다. 이상적인 생분해성 플라스틱은 성능이 우수하고 폐기 후 미생물에 의해 완전히 분해될 수 있으며 궁극적으로 무기화를 통해 자연에서 탄소 순환의 구성 요소가 되는 고분자 소재입니다.

컬러 마스터배치는 플라스틱 산업에서 없어서는 안 될 중요한 부분입니다. 플라스틱 제품에 색상을 부여하고 제품의 가치를 높이며 플라스틱의 특정 성능을 향상시킬 수 있을 뿐만 아니라 재료에 특정 광학 특성을 부여할 수도 있습니다.

1940년대에 시작된 새로운 기능성 폴리머는 주로 모든 종류의 엔지니어링 플라스틱(PA, PC, ABS, PET, PPS 등)을 포함하며 전자, 전기 제품, 자동차, 운송, 항공, 방위 및 군수 산업 등에서 이미 사용되고 있습니다.

필러 마스터배치는 플라스틱 필름, 쓰레기 봉투, 쇼핑백, 속옷 봉투, 포장 봉투 등의 가공에 사용할 수 있습니다. 분산성이 우수하고 흰색과 검은색 반점이 없는 블로운 필름이며 제품의 광택과 인성을 보장하는 높은 미세도를 가지고 있습니다.

비결정화 건식 PET 시트 압출은 몇 가지 장점을 제공합니다. 사전 건조 결정화에 필요한 에너지 소비 없이 PET/PLA 시트를 생산하고 높은 생산량, 낮은 에너지 소비 및 높은 플라스틱 품질을 가진 소재 생산에 적합합니다.

The PET waste plastic bottle cleaning line means that the waste plastic bottles are de-labeled by the de-labeling machine, pulverized by the crusher, and then processed by cleaning and drying equipment, so that the recycling and integration of waste plastic bottles becomes a new type.

열가소성 엘라스토머는 경도와 물성을 광범위하게 조절할 수 있습니다. 또한 가황 처리가 필요 없고 재활용이 가능하며 비용을 절감할 수 있어 씰, 자동차 내장재, 접착 코팅재, 각종 파이프 피팅 등 적용 분야가 비교적 넓습니다.

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What Is A Lab Scale Twin Screw Extruder?

Lab scale twin screw extruder is primarily used for the research and development of polymer plastics. Laboratory extruders are used for testing new materials or new formulation. With a Laboratory extruder, you can produce low volumes or do pilot tests. And it is typically found in the research and development of universities, companies and research institutes. The main feature of lab twin screw extruder is the small diameter of the screw, which largely reduces the use of materials in the application and development.

Currently, the world trend of laboratory twin screw extruders is high torque, high speed and low energy consumption, and the result of high speed is high productivity. The Granuwel GTE series lab twin screw extruder belongs to this category and can reach a maximum speed of 750 rpm. As a result, it has distinct advantages in processing high-viscosity and heat-sensitive materials.

Lab Single Screw Extruder VS. Lab Twin Screw Extruder

The lab single-screw extruder adopts the integral structure, which consists of three parts: charging section, melting section and metering section.

Compared with the lab single-screw extruder, the laboratory twin-screw extruder has more advantages.

(1) The average dwell time of the material is short. The distribution of the dwell time is narrow, generally between 1 and 10 minutes.

(2) The mixing of materials will be better under the action of high shear and kneading force.

(3) Lab twin screw extruder has high self-cleaning ability, the two screws engage each other and scrape each other to reduce the waste of materials.

(4) The lab scale twin-screw extruder has strong controllability of operating parameters, the screws in each section can be matched at will, with flexible and changeable characteristics, and the die opening can be changed at will according to the shape.

(5) Mixing ability is strengthened; distributed mixing and dispersive mixing are interlaced, making the mixing of drug and carrier materials more uniform.

What Are The Common Types of Laboratory Extruders?

By feeding method: Laboratory extruders can be divided into cold-feed extruders and hot-feed extruders.

Hot feed extruders are mostly used as preforming machines or filtering rubber equipment in production, the production efficiency of hot feed extruders is usually higher than cold feed extruders, but they are not equipped with temperature control system, so the production stability is not as good as cold feed rubber extruders.

The advantage of cold feed rubber extruder is that it can continuously feed to ensure the pressure in the screw barrel, which allows good pressure constancy in production. Cold feed extruder usually has a much higher configuration than the hot feed extruder, and the cost is also much more expensive.

Nowadays, cold-feed rubber extruders are mostly used for the extrusion and production of finished products, and the design of rubber extruders varies according to the specificity of the extruded rubber.

Granuwel laboratory extruder products are fully functional and easy to operate, and can be applied to formula development, process optimization, quality control, innovation research, technician and student training, etc.

Benefits of a Laboratory Twin Screw Extruder

There are several key benefits of using a laboratory twin screw extruder for research and development.

Precise Control of Material Properties
The laboratory twin screw extruder allows for precise control of material properties, including temperature, pressure, and mixing. This is important for ensuring that materials are processed correctly and for controlling the final material properties.

Reduced Development Time and Costs
The laboratory twin screw extruder allows for rapid prototyping and development, reducing the time and costs associated with traditional manufacturing methods.

Improved Material Properties
The laboratory twin screw extruder can be used to create materials with improved properties, such as increased strength, flexibility, and durability.

Precise Control of Material Properties

The laboratory twin screw extruder allows for precise control of material properties, including temperature, pressure, and mixing. This is important for ensuring that materials are processed correctly and for controlling the final material properties.

Reduced Development Time and Costs

The laboratory twin screw extruder allows for rapid prototyping and development, reducing the time and costs associated with traditional manufacturing methods.

Improved Material Properties

The laboratory twin screw extruder can be used to create materials with improved properties, such as increased strength, flexibility, and durability.

Features of a Laboratory Twin Screw Extruder

There are several key features of a laboratory twin screw extruder that make it a valuable tool for researchers and developers.

Precise Temperature Control
A laboratory twin screw extruder is equipped with heating and cooling zones along the barrel, allowing for precise control of the material temperature. This is important for ensuring that the material is processed correctly and for controlling the material properties.

High Shear Mixing
The screws of a laboratory twin screw extruder have a specific profile that creates high shear forces, allowing for thorough mixing of materials. This is particularly useful for materials that are difficult to mix, such as those with high viscosity.

Real-Time Monitoring and Control
A laboratory twin screw extruder is equipped with a range of sensors that monitor the process in real-time, allowing for precise control of temperature, pressure, and other variables.
The visual barrel can be used to detect the situation of melting, blending and shearing effect of materials in real time and can achieve a variety of material compatibility online detection.

Versatility
A laboratory twin screw extruder is a versatile tool that can process a wide range of materials, including polymers, composites, and biomaterials. It can also be used for a variety of applications, including compounding, extrusion, and reactive processing.

Lab Twin Screw Extruder Specifications

When choosing a lab twin screw extruder, several specifications should be considered. Here are the key parameters to look for:

Screw Configuration
The screw configuration is the design and arrangement of the twin screws inside the barrel. There are several types of screw configurations, each with its advantages and disadvantages. The most common configurations are:
Co-rotating: Both screws rotate in the same direction, allowing for high shear and mixing capabilities. Co-rotating screw configurations are suitable for processing materials with high viscosity and high filler content.
Counter-rotating: The screws rotate in opposite directions, which creates a shearing action that improves mixing and melting. Counter-rotating screw configurations are suitable for processing materials with low viscosity and high screw speed.
Intermeshing: The screws have intermeshing lobes that mesh with each other, providing high shear and mixing capabilities. Intermeshing screw configurations are suitable for processing materials with low to medium viscosity.

Screw Diameter
The screw diameter refers to the diameter of the screws inside the barrel. It is usually measured in millimeters (mm) or inches (in). The screw diameter affects the extruder’s throughput, mixing, and pressure buildup. A larger diameter screw can process more material per unit of time, but it also requires more power and can create more shear stress. A smaller diameter screw can provide better mixing and pressure buildup, but it may not have enough throughput for high-volume production.

Screw Length
The screw length refers to the length of the screws inside the barrel. It is usually measured in multiples of the screw diameter (L/D ratio). The screw length affects the residence time of the material inside the extruder, which influences the degree of mixing and melting. A longer screw can provide more mixing and melting, but it also requires more power and can create more shear stress. A shorter screw can provide faster processing time and less shear stress, but it may not achieve optimal mixing and melting.

Barrel Configuration
The barrel configuration refers to the shape and design of the extruder’s barrel. There are several types of barrel configurations, including:
Smooth bore: The barrel has a smooth inner surface, which provides low shear and less mixing. Smooth bore barrels are suitable for processing materials with high filler content and low shear sensitivity.
Various forms of cylinder structure, can realize the side feeding, liquid filling, exhaust, long glass fiber introduction, short glass fiber lateral addition, side forced exhaust and other functions, so as to achieve the purpose of multi-purpose with one machine, one machine with multi-functions.

Motor Power
The motor power refers to the amount of power required to rotate the screws inside the barrel. It is usually measured in kilowatts (kW) or horsepower (hp). The motor power affects the extruder’s throughput, mixing, and pressure buildup. A higher motor power can providea higher throughput and better mixing, but it also requires more energy and can generate more heat.

Heating and Cooling
Heating and cooling systems are important for controlling the temperature inside the barrel. Most lab twin screw extruders come with a heating system that includes heating elements and temperature sensors. The heating system can be used to melt the material and maintain it at the desired temperature. A cooling system is also required to prevent overheating of the extruder and maintain the temperature of the material during processing.

Control System
The control system is responsible for controlling the extruder’s operation and monitoring the process parameters. It includes a human-machine interface (HMI), a programmable logic controller (PLC), and sensors. The control system can be used to set the process parameters, such as screw speed, temperature, and pressure, and to monitor the extruder’s performance. Some lab twin screw extruders also come with data acquisition systems that can record and analyze the process data.