Twin Screw Barrel

Your Leading Twin Screw Barrel Supplier

We are committed to providing system solutions for the plastics industry and providing high-quality twin screw barrel. After years of technical accumulation, we provide products including 65-132 conical twin screw, conical screw barrel, parallel twin screw barrel, screw barrel element for Masterbatch, screw element conveying part, etc.

First 12 Last 1/2

Why Choose Us

Production Capacitie

We have two factories with about 9000 square meters construction area located in Zhoushan. Our production capacities can reach 1500 screw barrel sets monthly that enable us to deliver products to our customers in a short time.

Professional Production Equipment

3-axis CNC, 4-axis CNC, Screw Root Diameter Grinding Machine, Centrifugal Casted Furnace, Vacuum Quenching Furnace, Lathe, Hardness Tester, Metallographic Microscope.

Global Market

Our products were widely exported to Southeast Asia, Europe, Middle East, North America, South America and Africa.

Quality Assurance

The R&D, design and production of each of our product focuses on technological innovation and precision manufacturing, strictly controlled in accordance with the quality management system to ensure the performance and quality of each factory equipment.

Types of Twin Screw Barrel

Double Screw Extruder Barrel
Double screw extruder barrel is the major plasticizing part for parallel plastic extruder machines, which normally consist of parallel twin screws and one barrel.

Twin Conical Screw Cylidner
Twin conical screw cylidner is the major plasticizing part for conical plastic extruder machines, which normally consist of conical twin screws and one barrel.

Parallel Twin Screw Barrel
One of the primary aspects that make our parallel twin screw barrel unique is its design and construction. Our engineers have designed the product with precision and attention to detail to ensure that it provides optimal performance.

Kneading Blocks Twin Screw Extruder
The kneading blocks twin screw extruder is a powerful and efficient machine that is designed to increase productivity and reduce costs for businesses.

Parameters

Applicable Plastics:	CPVC, PVC, PE, ABS, PET, PP
Screw Type:	Twin Screws
Main Material:	High-Quality Alloy Steel
Straightness：	0.02 mm/m
Roughness：	Ra 0.4
Nitriding layer depth:	0.5-0.8mm
Nitrided hardness:	900-1000HV
Bimetallic layer depth:	3 mm
Bimetallic hardness:	57~69HRC
Hard-chrome plating hardness after nitriding:	≥950HV
Processing Temperature：	<400°
Chrome-plating layer depth:	0.03-0.09mm
Linearity of screw:	0.015mm
Material Grade：	Nitrided / Bimetallic
Warranty Period：	1 Year
Diameter Range:	Φ40 – 140 mm

Benefits of Twin Screw Barrel

Improved Mixing

The intermeshing design of the screws ensures more efficient and thorough mixing of materials.

Greater Flexibility

Twin screw barrels can handle a wider range of materials, including those that are difficult to process with a single screw barrel.

Higher Output

Due to their design, twin screw barrels typically offer higher output rates, making them ideal for large-scale production environments.

Consistent Quality

The ability to precisely control the processing conditions within the extruder leads to more consistent product quality, reducing the likelihood of defects or variations.

Scenarios of Twin Screw Barrels

Plastic production and recycling
Twin screw barrels are typically used in extruders to produce plastic products, among the most common applications. They mix and melt plastic materials uniformly and then shape them into strands or sheets through a die.

Food processing
Twin screw barrels are also used in the food processing industry. Besides that, twin screw barrels are used for food homogenization. They mix and break down food substances to achieve a uniform consistency and texture.

Chemical and pharmaceuticial industry
In the chemical and pharmaceuticial industry, twin screw barrels are used for material blending and reaction. They provide precise control over temperature, pressure, and shear rates, which allows for consistent medication production.

Biomass and feed pellet extrusion
In animal feed production, twin screw barrels extrude and pelletize feed mixtures. They ensure uniform distribution of additives and nutrients in the feed.

Textile industry
In the textile industry, twin screw barrels are used for fiber production and blending. The barrels also blend different fiber materials to achieve the desired properties.

Rubber processing
In the rubber processing industry, twin screw barrels are used for rubber compounding and mixing. They ensure uniform distribution of fillers, additives, and pigments in the rubber material.

Our Customization Options

Material Selection: High-quality alloys and coatings tailored to your needs.

Screw Configuration: Varying designs for different material processing applications.

Length-to-Diameter Ratios (L/D Ratio): Optimized for efficient processing.

Cooling & Heating Systems: Designed to meet precise thermal requirements.

Coating Selection

Nitrided Steel: Offers resistance to surface wear and corrosion.

Bimetallic Coating: Ideal for high-abrasion and high-temperature applications.

Chromium Plating: Provides excellent surface hardness and reduces friction.

Carbide Coatings: Increases wear resistance, particularly in high-pressure environments.

Technicl Process

Technicl process	1. Heat treatment
	2. Quenching
	3. Nitriding treatment
	4. Bimetallic alloy welding for screw
	5. Bimetallic alloy centrifugal casting for barrel
	6. Hard-chrome electroplating

Online Customization

●Contact our sales team online via email at info@rootier.cn and provide the products and quantities you need to order and your customization requirements.
●If you don't have drawings, we can help you measure your current screw barrel. Also we can design the screw barrel and select the matched steel materials based on your polymers processing application.
●Once everything is confirmed, we will send you the drawing for confirmation.
●Once approved by you, we will send you a quote so you can place your order and we will begin working on your custom order.
●According to the delivery time, we will arrange shipment after receiving the remaining payment.

Packaging and Delivery

Payment:	T/T, Trade Assurance, Paypal, Western Union,Alipay, Credit Card, L/C etc.
Safe Packing:	Plywood Case
Shipping:	Express, Air, Sea
Delivery Date:	7-15Days

Video

FAQ

Q: How often should I maintain a twin screw barrel?

A: Regular maintenance ensures optimal performance and longevity. It is recommended to:
Clean the Barrel and Screws: After every production cycle to prevent material buildup.
Inspect for Wear and Tear: Every 3-6 months to detect early signs of erosion.
Lubricate Moving Parts: To minimize friction and wear.
Check for Overheating: Monitor temperature levels to prevent excessive thermal stress.

Q: Does a twin screw barrel reduce energy consumption?

A: Yes, twin screw barrels are designed to optimize energy efficiency. Their high-shear mixing and optimized screw design improve material processing, leading to lower energy requirements per unit of output. Additionally, modern twin screw extruders come with advanced heating and cooling systems that further reduce energy wastage.

Q: What is the lifespan of a twin screw barrel?

A: The lifespan of a twin screw barrel depends on several factors, including material quality, operational conditions, and maintenance frequency. Typically, a well-maintained twin screw barrel lasts 5-10 years before requiring significant refurbishing or replacement. Using wear-resistant materials like bimetallic coatings or nitrided steel can extend its service life.

Q: Can I replace a single screw barrel with a twin screw barrel?

A: No, a direct replacement is not possible as single screw and twin screw extruders are designed differently. Twin screw barrels require specialized machinery with dedicated drive systems, screw configurations, and barrel designs that are not compatible with single screw systems.

Q: How does a twin screw barrel differ from a single screw barrel?

A: Mixing & Dispersion: Twin screw barrels provide superior mixing and dispersion of raw materials, ensuring a uniform melt.
Torque & Power Efficiency: They offer higher torque transmission, resulting in better mechanical energy efficiency.
Processing Versatility: Suitable for handling a variety of additives and fillers, making them ideal for compounding applications.
Output Rate: Twin screw barrels produce higher output due to their intermeshing screw design, which optimizes material flow.

We're well-known as one of the leading twin screw barrel manufacturers and suppliers in China. Please feel free to buy high quality twin screw barrel at competitive price from our factory. Contact us for more self-designed products.Twin Screw Barrel, Screw Element Conveying Part, bimetallic screw barrel twin parallel