Small Car Electric Differential Metal Cast Iron Sand Casting Auto Parts for Valve & Industrial Application

The automotive industry's shift towards electrification demands specialized components that meet new standards of efficiency and integration. Our Small Car Electric Differential represents a cornerstone of this transition, engineered specifically for compact electric vehicles (EVs). Utilizing high-strength metal cast iron and traditional sand casting techniques, this component delivers the durability and precision required for modern electric powertrains while serving broader industrial applications.

Material Excellence and Performance
Manufactured from Grade 25-45 cast iron, this differential housing offers an optimal balance of strength, wear resistance, and damping capacity. The material's excellent castability allows for the complex geometries needed to house electric motor components and gearing systems, while its inherent vibration-damping characteristics contribute to quieter operation—a critical factor in silent EV powertrains. The casting undergoes normalizing heat treatment to achieve a consistent pearlitic microstructure, ensuring Brinell hardness of 187-241 and tensile strength exceeding 250 MPa for reliable performance under continuous torque loads.

Advanced Sand Casting Production
We employ resin-bonded sand casting with precision-machined patterns to create differential housings with consistent wall thickness and superior surface finish. This process enables cost-effective production of complex shapes with internal passages and mounting points that would be challenging with other methods. Each casting undergoes rigorous quality control, including dimensional verification and liquid penetrant testing, to ensure defect-free components. Post-casting, critical surfaces are precision-machined to tolerances of ±0.01mm, guaranteeing perfect alignment of bearing seats and mounting interfaces.

Diverse Applications
While specifically engineered for small electric vehicle differential assemblies, this component's robust design and precise manufacturing make it suitable for multiple industrial applications. It serves as a reliable housing for reduction gearboxes in electric vehicles, provides durable valve bodies for industrial flow control systems, and functions as structural components in agricultural machinery and small industrial robots. The design incorporates standardized mounting patterns that facilitate integration with various motor types and braking systems.

This versatile cast iron differential housing bridges traditional manufacturing excellence with the requirements of modern electric mobility, offering OEMs and industrial manufacturers a reliable, cost-effective solution for demanding applications across multiple sectors.