High Quality GJL200 GJL250 Sand Iron Casting Pulley Custom Cast Iron Foundry Product

In industrial power transmission systems, cast iron pulleys remain fundamental components for efficient mechanical power transfer. Our High Quality GJL200 and GJL250 Sand Iron Casting Pulley products represent precision-engineered solutions manufactured through advanced foundry processes. These custom cast iron pulleys deliver exceptional durability, reliable performance, and optimal value for diverse industrial applications requiring robust power transmission components.

Premium Material Specifications
We utilize standardized gray iron grades specifically formulated for pulley applications:

• GJL-200 (GG20): Delivering tensile strength of 200 MPa with excellent vibration damping characteristics

• GJL-250 (GG25): Providing tensile strength of 250 MPa with superior wear resistance

• Enhanced Variants: Controlled phosphorus content for improved fluidity and casting quality

• Microstructure Control: Type A graphite distribution ensuring consistent mechanical properties

All materials comply with international standards including ISO 185, ASTM A48, and DIN 1691, with comprehensive material certification and traceability throughout the manufacturing process.

Advanced Sand Casting Technology
Our manufacturing employs sophisticated sand casting systems specifically optimized for pulley production:

Mold Preparation

• Resin sand molding ensuring dimensional accuracy and surface quality

• Automated molding lines maintaining consistent mold density

• Pattern equipment designed for optimal gating and feeding

• Real-time process monitoring during mold preparation

Casting Operations

• Controlled pouring temperatures (1380-1420°C)

• Computerized pouring systems ensuring consistent fill rates

• Optimized risering design preventing shrinkage defects

• Controlled cooling cycles minimizing internal stresses

Precision Machining Integration
Our comprehensive machining capabilities include:

• CNC turning of bore and hub dimensions

• Face grooving and profile machining

• Keyway and set screw hole processing

• Dynamic balancing to ISO 1940 G6.3 standard

• Surface finishing for optimal belt contact

Performance Characteristics
Our cast iron pulleys deliver:

• Excellent vibration damping reducing system noise

• Superior wear resistance against belt friction

• High compressive strength maintaining groove geometry

• Thermal stability across industrial operating temperatures

• Consistent performance under variable load conditions

Quality Assurance Protocol
Each pulley undergoes rigorous validation:

• Dimensional inspection using coordinate measuring machines

• Bore and groove profile verification

• Hardness testing ensuring 170-250 HB range

• Visual and microscopic surface examination

• Dynamic balancing verification

Technical Applications
Our cast iron pulleys serve critical functions in:

• Industrial conveyor systems and material handling

• Agricultural machinery power transmission

• Manufacturing equipment drive systems

• Ventilation and air movement applications

• Automotive production line equipment

Our engineering team provides comprehensive technical support including:

• Custom pulley design for specific application requirements

• Groove profile optimization for different belt types

• Weight reduction while maintaining structural integrity

• Special coating and finishing options

By combining traditional foundry expertise with modern manufacturing technology, we deliver cast iron pulleys that ensure reliable power transmission, extended service life, and reduced maintenance costs. Our focus on material quality and manufacturing precision guarantees components that meet the demanding requirements of industrial power transmission applications while providing exceptional value through extended service life and consistent performance.