A casting foundry in India plays a crucial role, as the country is the second-largest producer of investment castings worldwide, next only to China in terms of volume. Some estimates peg annual production in Rajkot alone at 58,400 metric tons. Additionally, the industry is projected to keep growing at ~12% CAGR through 2031, yet challenges persist.
Domestic B2B procurement remains plagued by high rejection rates and inconsistent metallurgical integrity. Small unit size and high lead times add to procurement complexity. For international OEMs and Tier-1 suppliers, finding a casting foundry in India that balances cost-efficiency with precision remains a challenging endeavour. Such predicaments lead to costly project delays and failures, especially when sourcing complex components from an investment casting foundry in India.
As the global demand for precision, robust, and lightweight components grows, the search for “top 10 casting foundries in India” often reveals a gap between raw capacity and actual technical expertise.

Sterling Technocast, the Sterling Group’s endeavor, addresses these challenges. For the past seven years, we have leveraged 25 years of engineering expertise to deliver a streamlined, technology-driven approach to precision investment casting and high-quality metal components in India.
Investment Casting Process at Our Casting Foundry in India
Sterling’s concentrated effort to mitigate the challenges of lost-wax casting begins with its casting foundry in Rajkot, India. Our facility in Rajkot is an 8,000mᒾ turnkey solution where we:
Mold
Fabricate wax molds and put them together to create a wax-pattern tree.
Dip
Apply multiple ceramic and stucco coatings to create an evenly thick and hard shell.
Dewax
Fire the shells to drain the wax, remove traces of water, and further strengthen the shells.
Pour
Gravity-pour the liquid metal into the hollow shell, allow the metal to gradually cool down and form high-precision industrial components.
Knock Out
Shake the components free of the cast and separate them from the tree.
Machine and Test
Carry out machining operations and a final round of inspection before delivery.
Investment Casting Foundry in India for OEMs and Global Industries
Sterling Technocast is a leading casting foundry in India and a compelling choice for investment casting needs for domestic and international Tier-1 suppliers and OEMs because:
Size and Capacity
State-of-the-art 8000㎡ foundry with scalable production capacity.
Expertise
25 years of engineering expertise, modern CNC and Jobber machinery, precision casting processes for industrial and engineering applications, and trained personnel.
Material Variety
Proven experience in casting with a broad range of ferrous and non-ferrous alloys.
Certification
ISO 9001 certified facility with industry-specific certifications like IATF, PED, IBR, NORSOK, and Merkblatt.
Turnkey Solutions
Provision for supplying components ‘as-is’ or finished ‘ready-to-assemble’.
Export Ready
Monthly production of 120 metric tons with considerable shipments to the US, Germany, Spain, Italy, the UAE, and Australia.
Top 10 Casting Foundries in India – What Sets the Best Apart
The search for the top 10 casting foundries in India often goes beyond production capacity and pricing. For OEMs and global buyers, the best casting foundries and a reliable casting foundry in India are defined by their ability to deliver consistent quality, precision, and reliability at scale as a trusted casting supplier in India.
Key factors that distinguish the top casting foundries in India include:
Certifications and Compliance
ISO 9001 and industry-specific certifications such as IATF, PED, and NORSOK ensure consistent quality standards.
Advanced Manufacturing Capabilities
Modern investment casting processes, CNC machining, and in-house testing facilities improve precision and reduce rejection rates.
Material Expertise
Capability to work with a wide range of ferrous, non-ferrous, and high-performance alloys.
Quality Control and Testing
Use of CMM machines, spectrometers, and non-destructive testing for batch-wise validation.
Production Capacity and Scalability
Ability to handle both low-volume and high-volume production efficiently.
Global Export Experience
Proven track record of supplying to international markets with adherence to global standards.
As one of the top 10 casting foundries in India, Sterling Technocast aligns with these critical parameters, offering precision investment casting solutions tailored to OEM and industrial requirements.
Casting Foundry in India – About Sterling Technocast
Sterling Technocast is a Rajkot-based casting foundry in India and is recognized among the top 10 casting foundries in India
Background
Seven years of experience providing end-to-end casting solutions.
Technical Capabilities
3D wax molding, VMC and HMC machines, Zeiss Spectrum coordinate measuring machines (CMM), and 8th gen Spectromaxx machines.
Industry Diversification
Producing valve components, pump housings, brakes, turbocharger housings, and bushings, using a wide spectrum of industry-grade alloys.
Transparency
Batch-wise material test and NDT reports.
Discuss Your Investment Casting Requirements
Our experts provide project-based clarity with respect to material suitability and design practicality.
FAQs
What is the lead time for a project?
Lead times for projects vary based on design complexity and scope. However, normal lead times range from 4 to 6 weeks.
What material do you use in the casting process?
We cast with most of the common alloys used in the investment casting industry. Along with low-carbon and stainless steel grades, we cast with copper-based superalloys like Inconel.
Do you support secondary operations?
Yes, we provide support for secondary operations. We have an in-house machining center with modern equipments to handle reaming, drilling, and surface finishing requirements.
Do you work with exotic and proprietary alloys?
We are one of the top 10 casting foundries in India, and we regularly work with exotic and proprietary alloys with the utmost discretion.
Choosing the right casting foundry in India can significantly improve product quality, reduce rejection rates, and ensure consistent quality assurance and global supply chain reliability.
Reduce return outward, multiple vendor tracking, and documentation inconveniences.
