Cast Shaftless Helix

Product Overview

Jiahe Conveying's Cast Shaftless Helix is an integrally cast conveying component designed for extreme-duty bulk material handling applications. Utilizing advanced casting techniques with premium wear-resistant alloys, this shaftless design delivers unparalleled durability and maintenance-free operation in the most abrasive industrial environments.

Technical Specifications

Material Advantages

1. High-Chrome White Iron (HCWI)

• Chromium Content: 15-28%

• Hardness: 550-700 BHN

• Microstructure: Primary M7C3 carbides

• Best For: Pure abrasion applications

2. Ni-Hard IV

• Nickel Content: 5-7%

• Hardness: 550-650 BHN

• Microstructure: Austenitic matrix with carbides

• Best For: Impact-abrasion conditions

3. Duplex Stainless Steel

• Grade: CD4MCu, ASTM A890

• Hardness: 280-320 BHN

• Corrosion Resistance: Excellent

• Best For: Corrosive-abrasive combinations

Design Features

1. Integrated Wear Protection

• As-cast hard phases (50-60% carbide volume)

• Reinforced flight edge geometry

• Directional solidification for optimal properties

2. Structural Optimization

• Variable wall thickness design

• Internal rib reinforcement

• Precision-machined mounting surfaces

3. Performance Enhancements

• Smooth transition zones between flights

• Optimized material flow surfaces

• Balanced weight distribution

Quality Assurance

• Full material certification (chemical & mechanical)

• Radiographic testing (ASTM E94)

• Hardness mapping reports

• Dimensional inspection (laser scanning)

• Proof load testing capability

Industry Applications

Mining & Minerals

• Primary crushed ore conveyors

• Mill feed systems

• Tailings dewatering

Cement Production

• Hot clinker conveying

• Raw mill feed

• Cement cooler systems

Power Generation

• Bottom ash handling

• FGD sludge conveying

• Biomass fuel systems

Maintenance Advantages

• 5-8X service life vs fabricated flights

• No weld repairs required

• Predictable wear patterns

• Simple segment replacement

Custom Engineering Services

• Application-specific material selection

• Wear pattern simulation

• Mounting system design

• Field measurement services

• Performance optimization

Contact our foundry engineering team for technical consultation and custom solutions!