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High Wear Resistance Standard Spline Kneading Block for Twin Screw Extruders

Categories Kneading Element
Brand Name: Nanxiang Machinery
Model Number: As Requested
Place of Origin: Sichuan China
Certification: ISO 9001
MOQ: Negotiable
Price: Negotiable
Packaging Details: Wooden Package
Delivery Time: 30~60 days
Payment Terms: TT/LC
Supply Ability: 300M/Month
Standard: DIN, GB, Etc.
Heat treatment: Vacuum Hardening
Machinery Test Report: Provided
Wear-resistant: High
Features: Backward Pumping, Kneading, Heating
Application: Twin Screw Extruder
Hardness: HRC 58-62
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High Wear Resistance Standard Spline Kneading Block for Twin Screw Extruders

High Wear Resistance Standard Spline Kneading Block for Twin Screw Extruders

Product Description

Our Backward Pumping Kneading Block is manufactured using the latest heat treatment techniques, including vacuum hardening, which ensures the highest level of durability and strength. Additionally, the product undergoes polishing and sandblasting treatments to enhance its surface finish and resistance to wear and tear.

With a tolerance of 0.02 mm, our Backward Pumping Kneading Block is designed to deliver precise and accurate results, making it an essential tool for any industrial process that requires high levels of accuracy. The product conforms to the highest industry standards, including DIN, GB, and more, ensuring maximum compatibility and ease of use.

One of the key features of our Backward Pumping Kneading Block is its exceptional hardness, with a rating of HRC 58-62. This ensures that the product can withstand the most demanding industrial applications and provides reliable performance under even the harshest conditions.

Whether you're working in plastics, rubber, or other industries, our Backward Pumping Kneading Block is the perfect tool for your needs. Its unique design and high-quality construction make it a versatile and reliable choice for a wide range of applications, and its exceptional durability ensures that it will provide years of reliable service.


Features:

  • Product Name: Backward Pumping Kneading Block
  • Wear-resistant: High
  • Heat treatment: Vacuum Hardening
  • Hardness: HRC 58-62
  • Treatment: Polishing/Sand Blast
  • Features: Backward Pumping, Kneading, Heating
  • Also known as: Reverse Flow Mixing Block, Reverse Pumping Kneading Block, Reverse Material Flow Kneading Block

Technical Parameters:

Tolerances0.02 mm
product nameBackward Pumping Kneading Block
Hardness58-60HRC
Brand NameNanxiang Machinery
Surface TreatmentPolishing/Sand Blasting
MaterialsSAM10/SAM39/WR5/WR14/W6Mo5Cr4V2
Place of OriginSichuan , China
Warranty6 months
Screw RangeΦ 15.6 - Φ 430mm
Suit ForPharmaceuticals Extrusion Chemical Extrusion Food Extrusion Powder Coating Extrusion

Types of the Screw Segments


Convey Screw SegmentConvey Screw Segment
Kneading Block & DiskTransition Screw Element
Deep groove transfer elementScrew element for side feeder
1-flighted 2-flighted 3-flighted screw elements

Special Screw Element


Materials


1. For wear application:


Tool Steel : W6Mo5Cr4V2;
PM-HIP material : SAM10 SAM26 SAM39 CPM10V CPM9V


2. For corrision application:


Nitrided Steel: 38CrMoAI;
PM-HIP material : SAM26 SAM39 CPM10V CPM9V


3. For wear and corrision application:


WR14 and WR45


Support twin-screw extruder brand


W&P: ZSK-MCBerstorff: ZE
Leistritz: ZSE-MICROTheysohn: TSK
Maris:TM-WAPV: MP65
JSW: TEXSM: TEK-HS
Feddem: FED-MTSFessia Macross: NRII
TOSHIBA: TEMUSEON: TDS
Labtech: LTESHIZHOU: MTE

Tool Steel


W6Mo5Cr4V2 Chemical Composition
CSIMnPSCrMoVWCuNi
W-%0.880.350.30.0230.0034.034.811.865.950.120.24

Production Process


Melting Zone Extruder Screw Elements 30° - 90° Angle Design Stable Performance 9

NO.1


Workblank


Select high-quality raw materials


NO.2


Piecewise


According to the drawing section length


Melting Zone Extruder Screw Elements 30° - 90° Angle Design Stable Performance 10
Melting Zone Extruder Screw Elements 30° - 90° Angle Design Stable Performance 11

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


Melting Zone Extruder Screw Elements 30° - 90° Angle Design Stable Performance 12
Melting Zone Extruder Screw Elements 30° - 90° Angle Design Stable Performance 13

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


Melting Zone Extruder Screw Elements 30° - 90° Angle Design Stable Performance 14

Our Service


24-hour Hotline


No matter when and where

to call we can find our service to you.


Pre-sales Consultation


We have five sales people online,

and whether you have any question

can be solved through online

communication,welcome your consultation.

After-sales Services


Receive products have any

questions about the product,

can look for us,we will help

you deal with the the first time,to your satisfaction.


All Nanxiang keep pay attention to every step of the details,We are looking forward to the forge ahead together with you!


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.


Packing&Delivery


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

Delivery Details: 20-60days after order.



Packing


According to your order quantities and products sizes to choose wooden boxes or cartons to pack:

a. Rust-proof oil processing,

b. Oiled paper packages,

c. Bubble wrap package,

d. Special foam packaging,

e. Packing,

f. Sealing.


Customer Trust



Certificate


certificate nanxiang


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 material is used for the kneading block?
A: Our kneading blocks are made from high-wear-resistant materials such as high-speed steel (W6Mo5Cr4V2), powder metallurgy alloys (WR5, WR13, WR14), and stainless steel for corrosion resistance.


Q: What is the hardness level of the kneading block?
A: The hardness varies depending on the material used, typically ranging from HRC 58-65 for wear-resistant alloys and HV 950-1100 for nitrided components.


Q: How does the kneading block improve extrusion performance?
A: The block enhances material mixing, dispersion, and shearing, ensuring a more consistent and high-quality extrusion process while reducing material degradation.

Quality High Wear Resistance Standard Spline Kneading Block for Twin Screw Extruders for sale
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