Wear Resistant Twin Screw SFV screw element Double Screw Extruder Machine Special Screw Segment
 
Product Description
 
SFV is a wide-edged single-head conveying element. The advantage of this element is that it can transport lighter powder materials for the feeding section of the machine. The SFV screw element ensures there will not be any accumulation of materials. The SFV wide edge screw sleeve can also be used in the metering section of the host screw. When the front end uses the underwater die surface for hot pelletizing, the SFV screw element can keep the back pressure of the solution with a high melt index as much as possible, so as to ensure that the die holes are uniform and the pellets are colored (such as thermoplastic polyurethane elastomer TPU, degradable plastic PBA, etc.).
 

 
Specification
 

Screw Diameter	68.25 mm
Screw Design	SFV Screw Element
Hardness	58-60HRC
Brand Name	Nanxiang
Surface Treatment	Polishing/Sand Blasting
Materials	SAM10/SAM39/WR5/WR14/W6Mo5Cr4V2
Place of Origin	Sichuan , China
Warranty	1 Years
Screw Range	Φ 15.6 - Φ 430mm

 
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.
 

 
Screw Elements Including
 
Single flight, twin flight and tri-lobe elements
Kneading blocks and single
mixing paddles or discs
High volume intake elements
Conveying elements
Compression elements
Reverse elements
Flow splitting elements to mix different viscosities
Transition elements from single flight to twin flight
 
Support Twin-screw Extruder Brand
 

 
Different types of kneading blocks are provided
 
30° kneading block
45° kneading block
60° kneading block
90° kneading block
3KB kneading block
Reverse 45° kneading block
 
Quality Control
 
1). Materials control: All the materials are purchased from the domestic brands or Eurpean twin-screw specialty materials suppliers,which tested by elemental analysis and metallurgical inspections to ensure the quality.
2). The internal splines is checked by the spline plug to ensure interchangeability of the elements
3). All components are machined by CNC machines to ensure the shapes and tolerances of the elements
4). Adopt the European high-speed steel powder processing technology,and do the treatment according to the strict heat treatment 4.process to ensure the wear and corrosion performance same as the foreigh brands.
5). Perfessioal technical team can not only provide timely and accurate mapping sample design but also the combination of elements of technical services.
6). There are various prepared technical information and the fitxtures for the various brands extruders to ensure the timely lead time.The common components have a lot of stock, even the new one, it can be delivered within 45days.
7). The modern management system can ensure the products 100% qualified and tracked
 
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&Delivery
 
Packing Details: According to your order quantity packaging, shipping wooden boxes, air carton.
Delivery Details: 20-60 days after order.
 

 
FAQ
 
Q: Are you a trading company or a manufacturer?
A: We are a manufacturer.
 
Q: Where is your factory located? How can I visit there?
A: Our factory is located in Chengdu, Sichuan Province, China. You can fly directly to Chengdu Airport, and we will pick you up upon arrival. We warmly welcome all our clients, both domestic and international, to visit us.
 
Q: How long will your product last?
A: The lifespan of our products can vary greatly depending on the operation time, materials used, and working conditions. Therefore, it is difficult to provide an exact duration.
 
Q: Are your quotations all FOB?
A: Yes, all our quotations are FOB (Free on Board).
 
Q: Can I get a one-year warranty for free?
A: Our standard warranty is not free, but we have confidence in the quality of our products. If you require a warranty, it will be available for an additional cost.
 
Q: How is your after-sale service?
A: We are committed to providing timely support. If you encounter any issues with our products, you will receive our assistance promptly. We strive to ensure you receive the best service possible.