EGR Investment Casting
Manufacturing vital automotive components, including EGR valves, housings and cooler outlets, using the precision lost-wax casting methods
Precision Components
The precision-casting egr investment castings components are manufactured to domestic and global standards.
EGR Diffusers
An EGR diffuser is a specialised engine component designed to evenly mix recycled exhaust gases with fresh intake air in...
EGR Venturi Components
It is a specialised, restrictive component in an engine’s intake or exhaust stream that generates a pressure differentia...
EGR Flanges
EGR flanges are vital and high-temperature fittings which are used to connect EGR pipes, valves and coolers securely to...
EGR Pipe Connectors
EGR pipe connectors are a metal or composite fitting which securely joins the exhaust manifold or cooler to the EGR valv...
Exhaust Mixing Components
These are the critical elements designed to mix different fluids or gases within an exhaust system. These include emissi...
Sensor Mounting Bosses
Sensor mounting bosses are threaded bungs or brackets used to securely attach a sensor to machinery, automotive parts or...
Technical Specifications Framework
| PARAMETER | VALUE |
|---|---|
| Casting | |
| Weight Range | 0.02 Kg (20Grams) to 30 Kg |
| Dimensional Tolerances (Castings) | IS11166/VDG P690 |
| Surface Finish (Casting) | Ra 1.6 to Ra 3.2 |
| Maximum Size Envelope | 400mm x 400mm x 400mm |
| Machining | |
| Dimensional Tolerances (Machining) | ISO 2768 (f) |
| Surface Finish (Machining) | 1.6 to 3.2 Ra |
| Maximum Size Envelope | 400mm x 400mm x 400mm |
Special Process Steps for EGR Investment Castings
Tooling
Design is highly productive and accurate for Water Sol Core and Pattern.
Water Sol Core and Pattern Injection
Injection of water sol core and then putting the core into the pattern injection. Take out the core through the leaching process post pattern injection.
Shell Building
The wax tree is repeatedly dipped into a ceramic slurry and coated with refractory stucco.
Dewaxing & Firing
The ceramic shells are placed in a steam autoclave or flash-fire furnace to melt and remove wax.
Metal Pouring
EGR parts are generally made of heat-resistant stainless steel or high-grade aluminium, depending on the heat and weight requirements.
Post-Processing & Finishing
After cooling, the ceramic shell is broken away via vibration and the individual EGR parts are cut from the sprue, and the gates are ground down.
Material Database
| Material | Classification | Grades (For Example not limited to) |
|---|---|---|
| Stainless Steel | Austenitic | 304, 304L, 316, 316L, 321, 347 |
| Ferritic | 409, 430, 439, 444 | |
| Martensitic | 410, 420, 431, 440A, 440B, 440C | |
| Duplex / Super Duplex | 2205, 2507 | |
| Carbon Steel | Low Carbon Steel | WCA, WCB, WCC, AISI 1008–1020 |
| Medium Carbon Steel | AISI 1030, 1035, 1040, 1045, 1050 | |
| High Carbon Steel | AISI 1060, 1070, 1080, 1095 | |
| Alloy Steel | Low Alloy Steel | 4130, 4140, 4145, 4340, 8620 |
| Wear Resistant Alloy Steel | Manganese Steel, Ni-Hard | |
| Heat & Creep Resistant Alloy Steel | WC1, WC5, WC6, WC9, C5, C12A |
Quality Assurance
Inspection and certification protocols applied to every EGR Investment Castings order — beyond our baseline IATF / ISO / PED quality systems.
IATF 16949:2016 Certified
Full conformance to IATF 16949:2016, the global quality management standard for automotive supply.
Metrology Laboratory
Laser scanning and CMM inspection confirm dimensional accuracy to within microns.
Spectral & X-Ray Testing
X-ray and spectral checks run without damaging the part, proving internal soundness.
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