2 - flighted Screw Elements of 7.8-500 mm diameter for Twin Screw Extruder

2 - flighted Screw Elements of 7.8-500 mm diameter for Twin Screw Extruder Extrusion

Product Description

These 2-flighted screw elements are precision-engineered components designed for twin-screw extruders, widely used in polymer processing, food extrusion, pharmaceuticals, and chemical compounding. The double-flighted (2-start) design ensures efficient material conveyance, moderate shear, and stable pressure build-up, making them ideal for feeding, melting, and pumping applications. 

Features

1. Product Name: Double Flighted Screw Element

2. Thread Size: Customizable

3. Application: Mixing And Conveying

4. Helix Angle: 30 Degrees

5. Operating Temperature: -40°C To 400°C

6. Wear: High Wear-resistant

7. Also known as: Screw Element with Twin Helix, Double Spiral Screw Element

Technical Parameters

Screw Diameter	Optional
Screw Design	Double Flighted Screw Element
Hardness	58-60HRC
Brand Name	Nanxiang Machinery
Surface Treatment	Polishing/Sand Blasting
Materials	SAM10/SAM39/WR5/WR14/W6Mo5Cr4V2
Place of Origin	Sichuan , China
Warranty	6 months
Screw Range	Φ 15.6 - Φ 430mm
Suit For	Pharmaceuticals Extrusion Chemical Extrusion Food Extrusion Powder Coating Extrusion

Applications

1. Polymer Processing & Plastics Compounding
2. Food & Feed Extrusion
3. Pharmaceuticals
4. Rubber & Tire Industry
5. Chemical & Specialty Materials
6. 3D Printing Filament Production

Extruder Screw Materials

1. For wear application:

Tool Steel : W6Mo5Cr4V2;

PM-HIP material : SAM10 SAM26 SAM39 CPM10V CPM9V

2. For corrosion application:

Nitrided Steel: 38CrMoAI;

PM-HIP material : SAM26 SAM39 CPM10V CPM9V

3. For wear and corrosion application:

PM-HIP material:SAM26 SAM39 CPM10V CPM9V

4. Other Materials:

Stainless Steel: 316L, C276, SX737 etc.

Customization

Product Customization Services for Double Flighted Screw Element

The Double Flighted Screw Element is a product manufactured by Nanxiang Machinery. It is available in various models, with the Model Number being customizable as per the customer's requirements. The product is made in Sichuan, China, and is certified with ISO 9001.

The minimum order quantity for this product is negotiable, and the price is also negotiable. The packaging details include a wooden package, and the delivery time is approximately 30-60 days. The payment terms for this product are TT/LC, and the supply ability is 300M/Month.

The connection method for this product is Spline, and it has a torque capacity of up to 5000 Nm. The screw diameter ranges from 10mm-300mm and can be customized as per the customer's requirements. The product has 2 flights, making it a Double Start Screw Element or a Screw Element with Double Coils or Double Flighting.

This product is highly wear-resistant and is suitable for a variety of applications.

Support twin-screw extruder brand

Support and Services

The Double Flighted Screw Element is a product used in various industries for conveying and processing materials. Our technical support team is available to assist with any questions or issues related to the product, including installation, maintenance, and troubleshooting. Additionally, we offer a range of services for the Double Flighted Screw Element, including repair and replacement of parts, customization options, and performance testing. Our team is dedicated to ensuring that our customers receive the highest level of support and service for this product.

Tool Steel

Production Process

	NO.1   Workblank     Select high-quality raw materials
NO.2   Piecewise According to the drawing section length
	NO.3   Hit bottom hole Rough machining the bottom hole,and then pull spline
NO.4   Machining thread Professional high-end processing equipment,rough machining threads
	NO.5   Finish machining thread
NO.6   Threading grinding Further control of tolerance Length:-0.01mm-+0.01mm OD:-0.03mm-0mm Transition arc:-0.02mm-+0.02mm

Packing and Shipping

The Double Flighted Screw Element will be packed in a sturdy cardboard box to ensure safe transportation.

The box will be sealed with strong adhesive tape to prevent any damage or tampering during shipping.

Shipping:

The product will be shipped via a reliable courier service.

The shipping time will depend on the destination, but we will provide you with an estimated delivery date when we confirm your order.

We will also provide you with a tracking number so you can track your shipment.

Certificate

Why choose us?

Nanxiang Machinery is a specialized manufacturer of precision-machined components for twin-screw extruders, including threaded elements, kneading blocks, mandrels, super-hard screw accessories, and wear-resistant alloy steel sleeves. Our products are widely applied in renowned international brands such as Coperion, Lerstritz, Berstorff, KOBE, and JSW, serving industries like plastics, food, feed, pellet manufacturing, pharmaceuticals, and new energy.

FAQ

Q: What is a 2-flighted screw element?
A: 2-flighted (double-start) screw element has two parallel helical channels, providing efficient material conveyance with moderate shear. It is commonly used in feeding, melting, and pumping zones of twin-screw extruders.

Q: What is the minimum order quantity of the Double Flighted Screw Element product?

A: The minimum order quantity of the Double Flighted Screw Element product is negotiable.

Q: When should I use a 2-flighted screw instead of a 3-flighted one?
A: - 2-flighted: Best for feeding, melting, and general conveying (moderate shear).
    - 3-flighted: Used for high-speed mixing, dispersive compounding, and high-shear applications.