Heat Treatment Facility at Sriunhat Auto Components Pvt. Ltd. (SACPL)

At Sriunhat Auto Components Pvt. Ltd. (SACPL), a sister concern of Metalwork Industries, we specialize in advanced heat treatment processes to enhance the durability, wear resistance, and mechanical strength of precision-engineered automotive components.

Our state-of-the-art heat treatment plant, spread over 30,000 sq. ft., is equipped with Sealed Quench Furnaces (SQF), automated quenching systems, and a fully integrated metallurgical laboratory, ensuring that every component meets the highest industry standards.

With an investment of USD 1.6 million, SACPL’s precision-controlled heat treatment facility caters to the stringent quality requirements of global OEMs and Tier-1 suppliers.

Advanced Heat Treatment Capabilities

At SACPL, we offer a diverse range of heat treatment solutions, designed to improve component life, surface hardness, and fatigue resistance.

Case Carburizing

Hardening the surface while maintaining a tough core, ideal for high-load applications.

Carbonitriding

Enhancing hardness and wear resistance, particularly for high-speed automotive components.

Case Hardening

Strengthening the outer surface for improved durability.

Neutral Hardening

Achieving uniform hardness throughout the material for balanced strength.

Tempering

Reducing internal stresses after hardening to improve toughness.

Ferritic Nitro Carburizing (FNC)

Improving corrosion resistance, fatigue strength, and surface hardness.

These treatments significantly enhance the mechanical properties of components, ensuring long-term performance and reliability in high-stress environments.

Sealed Quench Furnaces (SQF) for High-Performance Processing

SACPL operates three state-of-the-art Sealed Quench Furnaces (SQF), manufactured by Wesman Engineering, designed to provide precise temperature control and uniform case hardening.

Key Furnace Specifications:

- Batch Capacity: 1,500 Kg per batch

- Heat Chamber Dimensions: 1200 x 900 x 900 mm

- Maximum Operating Temperature: 970°C

- Quench Tank Capacity: 13,000 liters each

- Pre-Heating Furnace: 650°C

- Tempering Furnace: 650°C

- Endogas Generators: 2 units for controlled atmosphere processing

- Magnetic Particle Inspection (MPI) Machine: For defect detection and surface integrity analysis

With SCADA (Siemens WINCC Version 18) automation, our furnaces deliver consistent, repeatable, and high-quality heat-treated components.

SCADA- Controlled Automation & Quenching Systems

At SACPL, process automation is key to ensuring precision and efficiency in every heat treatment cycle. Our facility is fully integrated with SCADA, enabling real-time process monitoring, batch tracking, and automated quality control.

The quenching process plays a crucial role in determining hardness, internal stress distribution, and distortion levels. Our facility is equipped with high-tech quenching systems to ensure optimal results.

Quenching Capabilities

Hot & Cold Oil Quenching – Controlled cooling for uniform hardness and minimal distortion.

Double-Walled Gaslight Quenching Tank – Preventing oxidation and maintaining component integrity.

Centrifugal Pump Oil Circulation – Ensuring uniform quenching for precise hardness distribution.

Our automated quenching tanks are designed for tight metallurgical tolerances, ensuring component performance and reliability across diverse applications.

Metallurgical Testing & Quality Control

To maintain strict quality control and process validation, SACPL has a fully equipped metallurgical laboratory for microstructure analysis, hardness testing, and defect detection.

Key Testing Capabilities & Equipment:

- Abrasive Cutting Machine – For sample sectioning and preparation.

- Mounting Press – Essential for microscopic material analysis.

- Micro Vickers Hardness Tester – Measuring micro-hardness variations.

- Rockwell Hardness Tester – For bulk hardness testing.

- Microscope with Image Analyzer – Providing in-depth microstructural examination.

- Double-Disc Polishing Machine & Belt Grinder – For sample finishing.

- 4 CNC Turning Machines with BOSS Self-Indexing Chucks – Ensuring precision machining of heat-treated components.

These in-house testing capabilities ensure that all components meet strict customer requirements and international standards.

Production Capacity & Cycle Time

The efficiency of our heat treatment facility allows us to handle large production volumes while maintaining customized cycle times based on customer specifications.

Total Capacity: 6 MT per 24 hours

Cycle Time Calculation: 1 hour per 0.1mm case depth

Example: A 1mm case depth requires a 10-hour cycle time

This scalable and flexible operation ensures that every component meets its exact hardness and depth requirements.

Key Products Manufactured at SACPL

At Sriunhat Auto Components Pvt. Ltd., we specialize in heat treatment for critical automotive components requiring high precision and durability.

Universal Joint Crosses

Bearing Cups

Each of these components undergoes rigorous process control and validation, ensuring that they meet the highest quality standards for global OEMs and Tier-1 suppliers.

Utilities & Support Systems

To ensure seamless operations, our facility is equipped with a dedicated utility infrastructure, providing a reliable supply of essential resources.

Nitrogen Bank – Maintaining an inert atmosphere for controlled processing.

LPG Bank – Fueling high-temperature heating applications.

Ammonia Bank – Essential for nitriding and surface enhancement processes.

These systems help maintain process stability, consistency, and high-quality output.

Why Choose Our Heat Treatment Facility?

With advanced automation, precise process control, and rigorous quality assurance, SACPL’s heat treatment facility is one of the most advanced in the industry.

SCADA-Controlled Automated Processing – Ensuring repeatability and process accuracy.

Industry-Leading Quenching Systems – Delivering superior hardness uniformity.

State-of-the-Art Metallurgical Lab – Ensuring flawless process validation.

Expertise & Advanced Technology – Manufactured by Wesman Engineering with Siemens automation.

Conclusion

As a trusted partner in precision engineering, Sriunhat Auto Components Pvt. Ltd. (SACPL) delivers high-performance, heat-treated components to leading automotive manufacturers. With world-class facilities, cutting-edge technology, and stringent quality control, we ensure unmatched reliability, durability, and performance.

Metalwork Industries is now a step closer in heading towards its ambition to be a Global Leader in the Automotive Component Manufacturing Industry.