
Intricate Geometries. Engineered Certainty.
Investment casting (Lost Wax) is the preferred choice for components where CNC machining is too costly or geometries are too complex for traditional die casting. At Bombay Metrics, we don’t just ‘find a foundry.’ We leverage the deep engineering talent in Pune to manage the critical DFM and ceramic shell iteration phases, ensuring your parts meet the print on the first shipment.
We specialize in high-detail aluminum alloy components that require superior surface finishes and tight dimensional tolerances.
This is the first thing our engineers look for to see if your process fits their part.
Vacuum Induction Melting (VIM): For reactive or super-alloy casting to ensure gas-free, high-purity metal.
The secret to our investment casting accuracy lies in the automated shell-building process. By strictly controlling the slurry viscosity and drying environment in our Pune facilities, we eliminate the micro-fractures that cause casting inclusions. This rigorous control allows us to hold tolerances of ±0.005 inches on complex aerospace and medical components.
Our high-density ceramic shells produce an industry-leading surface finish of 63 to 125 RMS. This “near-net shape” capability significantly reduces—and often eliminates—the need for expensive secondary CNC machining, allowing for complex geometries that are impossible to achieve through traditional sand casting or forging.
By automating the shell-building cycle in a climate-controlled environment, we ensure uniform wall thickness across the entire mold. This results in consistent cooling rates during solidification, which prevents internal shrinkage and ensures a refined, homogenous grain structure throughout the casting.
Stainless Steel, Carbon Steel, Aluminum, Super Alloys, and Copper Alloys.
Capable of handling all sizes, from micro-components to larger industrial structures.

Complex geometry precision part with 63–125 RMS surface finish, ready for assembly.
Investment casting costs are driven by tooling iterations. Our Pune engineering center manages complex simulation loops locally, while our Mumbai headquarters provides global oversight. Together, they prevent cost explosions and ensure seamless, PPAP-level stability for your operations.
We provide front-end design assistance to optimize draft angles and gating for India's specific foundry capacities.
Our 'Boots on the Ground' associates are physically present in the factories to conduct product audits and final sign-offs.
We offer sub-assembly services—like seal or bearing insertion—at our India distribution center or our Columbus, Ohio facility.
You receive one domestic invoice. We own the complexity of the 8,000-mile journey, including customs, tariffs, and JIT delivery.

Delivering engineering-driven manufacturing solutions that reduce cycle times and improve component integrity.

Manufacturing critical sensor components with high-pressure die casting precision for Honda's vision.

Optimized thermal management for street lighting, reducing weight by 15% while maintaining structural integrity.

Precision die cast transmission housings that withstand extreme field conditions and load stresses.




