Corrosion Resistant SK Screw Elements For Food Industry Extruder

Product Description

One of SK Screw Element's unique features is its high wear-resistance. It can withstand extreme wear and tear, making it suitable for use in harsh industrial environments. This wear-resistance is due to the high-quality materials used in its construction, which are carefully selected for their durability and strength. The SK Screw Element comes in different diameters ranging from 10mm to 300mm, and it can be customized to fit specific industrial applications. This versatility makes it an ideal choice for a wide range of industrial processes, including volume expansion and discharging section.

The screw element is heat-treated using vacuum hardening, which enhances its strength and durability. This process ensures that the screw element can withstand high temperatures and pressure, making it ideal for use in extrusion systems that require high-performance components.

Features

1. Product Name: SK Screw Element

2. Hardness: HRC 58-62

3. Standard: DIN, GB, Etc.

4. Wear-Resistance: High

5. Model: SK-01

6. Corrosion-Resistance: High

7. SK Screw Element for Volume Expansion

8. SK Screw Element for Powder Feeding

9. SK High Capacity Conveying Screw

Specification

Screw Diameter	75 mm
Screw Design	SK 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 include

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

Quality Control

1). Materials control: All the materials are purchased from the domestic brands or European twin-screw specialty materials suppliers, which tested by elemental analysis and metallurgical inspections to ensure the quality.

2). The internal splines are 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 foreign brands.

5). Professional 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 fixtures 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

Product accuracy

There are some differences between Nanxiang Machinery and Nanjing's production technology. Their finishing process is carried out before heat treatment, and the deformation after heat treatment is not controlled, so their accuracy is not easy to control. But our finishing process is carried out after heat treatment, which can eliminate the deformation of parts in heat treatment, so the precision is higher, and thus can achieve zero seam connection.

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 Delivery

Packing Details: According to your order quantity packaging, shipping wooden boxes, air carton.

Delivery Details: 20-60 days after order.

FAQ

Q: Are these screw elements food-safe?
A: Yes, they are made from **FDA-compliant** and **food-grade** materials that ensure hygienic processing and prevent contamination.

Q: What are the common applications of these screw elements in the food industry?
A: These elements are widely used in the production of:
- Pet food and animal feed
- Breakfast cereals
- Snacks and protein bars
- Pasta and noodle extrusion
- Meat substitutes (e.g., plant-based protein processing)

Q: How can I extend the lifespan of my SK screw elements?
A: - Regular cleaning and maintenance to prevent food residue buildup
- Use proper lubrication if required
- Select wear-resistant coatings for abrasive food materials