Grey Iron Castings Manufacturer in India
Sri Gnanamurugan Foundry is a leading manufacturer of high-quality grey iron castings based in Coimbatore, India. With over 30 years of foundry experience, we produce precision castings for automotive, pump, textile, agriculture and industrial applications.
Grey Iron Casting Capabilities
As a specialist grey iron castings manufacturer, Sri Gnanamurugan Foundry produces high-quality grey iron components ranging from 0.5 kg to 650 kg. Our cast iron foundry in India utilizes both green sand moulding and CO₂ moulding processes to deliver precision OEM grey iron components for domestic and international markets.
Whether you need small intricate automotive castings or heavy construction machinery bases, our grey iron casting supplier capabilities cover the full spectrum of industrial requirements.
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Grey Iron Casting Applications
Our grey iron castings serve diverse industrial sectors across India and international markets.
Manufacturing Process
Our vertically integrated grey iron casting process ensures quality at every stage — from melting to final inspection.
Induction Melting
750 kW Inductotherm furnace with precise metallurgical control for consistent grey iron composition and quality.
Sand Moulding
Green sand and CO₂ moulding using ARPA 300 & 1300 machines for both small precision and large heavy-duty castings.
Core Making
Semi-automatic cold box core shooters and manual air-set cores for complex internal geometries.
Fettling & Finishing
Knockout stations, bed grinding, swing grinders and hand grinders for precise surface finishing.
Shot Blasting
Tumble blast and hanger-type shot blasting machines for clean, uniform casting surfaces.
Inspection & Testing
Spectrometer analysis, Rockwell hardness testing, UTM testing and dimensional inspection on every batch.
Quality Assurance
Every grey iron casting from our foundry undergoes rigorous quality checks backed by our ISO 9001:2015 certified quality management system.
- Spectrometer analysis for chemical composition
- Rockwell hardness testing
- Universal Testing Machine (UTM) for mechanical properties
- Optical microscope with image analyzer
- Sand testing laboratory
- Dimensional inspection on every batch
Why Choose Sri Gnanamurugan Foundry
India's trusted grey iron casting supplier for OEM buyers worldwide.
Looking for a Reliable Grey Iron Casting Manufacturer?
Send us your requirements and drawings. Our team will provide a detailed quotation within 48 hours.
Frequently Asked Questions
What is grey iron and what is it used for?
Grey iron is a cast iron whose carbon forms flake graphite, which gives it good machinability, vibration damping and thermal conductivity. It is widely used for automotive components, pump housings, textile machinery parts, agricultural equipment, construction machinery and general engineering castings.
What weight range of grey iron castings can you supply?
Grey iron castings are produced from 0.5 kg to 650 kg. Smaller intricate parts suit automotive, motor and pump applications, while the heavier range covers construction machinery bases, textile power loom frames and agricultural equipment.
Which moulding processes do you use for grey iron castings?
Both green sand and CO₂ moulding are used, on ARPA 300 and ARPA 1300 moulding machines. Cores are made using semi-automatic cold box core shooters and manual air-set cores for complex internal geometries.
How are grey iron castings tested before dispatch?
Testing is done in-house under an ISO 9001:2015 quality system. It includes spectrometer analysis for chemical composition, Rockwell hardness testing, tensile testing on a universal testing machine, microstructure examination using an optical microscope with image analyser, sand testing and dimensional inspection on every batch.
Which industries do you supply grey iron castings to?
Grey iron castings are supplied to automotive, pump, textile machinery, agriculture, construction and general engineering customers, both in India and for export.