SGI & CI Castings
Production focused on spheroidal graphite iron and grey cast iron components for industrial applications. Material and grade selection is aligned with customer drawings, specifications and required component performance.
Shaping
Stronger Industries
SGI & CI castings, precision machining and hot-dip galvanizing support — built around your drawings, your specifications and your delivery schedule.
From molten metal to meaningful solutions
Quality Focused
Custom Solutions
Reliable Partnership
Growing Together
About Us
Engineering & manufacturing built around quality, process control and your requirements
Bajrang Metalcraft is an engineering and manufacturing company based in Rajkot, Gujarat, focused on casting and component solutions for industrial applications.
Our primary casting focus is on SGI (Spheroidal Graphite Iron) and CI (Grey Cast Iron) components. Alongside casting, we offer fettling and finishing, precision machining and hot-dip galvanizing support.
Working from customer drawings, specifications and application requirements, we define the process route, coordinate critical stages and support inspection and delivery of processed components.
Casting
SGI & CI component manufacturing aligned with drawings, material requirements and application needs.
Value Addition
Fettling, machining and hot-dip galvanizing support for processed, application-ready components.
Customer Delivery
Process coordination, inspection support and dispatch planning focused on agreed requirements.
Our Approach
- Understand the requirement
- Define the manufacturing route
- Control key stages
- Inspect the component
- Coordinate delivery
We keep the customer requirement at the centre of every manufacturing decision.
Capabilities
Integrated solutions: casting, machining and surface protection
One coordinated route from raw material to a finished, application-ready component.
Precision Machining
CNC and conventional machining for turning, drilling, tapping, boring and finishing. Components are processed to approved dimensions, tolerances and functional requirements.
Hot Dip Galvanizing
Surface-protection service for ferrous components requiring durable zinc coating. Preparation, pickling/fluxing, galvanizing and final inspection are coordinated according to the agreed requirement.
Engineering & Development
Drawing review, pattern/tooling coordination, process planning and production follow-up to support manufacturability, repeatability and controlled execution.
Custom componentsControlled processesCoordinated deliveryFettling & finishing
Manufacturing Process
From raw material to finished component
A defined seven-stage route, with control points matched to the component and the customer specification.
01
Material Selection
Controlled selection of charge materials and process inputs based on the required alloy, grade and component specification.
02
Melting & Metallurgy
Controlled melting with attention to chemistry, temperature and melt treatment to support consistent CI and SGI production.
03
Moulding & Core Making
Mould and core preparation suited to component geometry, internal features, casting soundness and required finish.
04
Pouring & Solidification
Controlled pouring and cooling, with treatment/inoculation as applicable to the selected material and route.
05
Shakeout & Fettling
Removal of sand, gates and risers, followed by grinding, cleaning and surface finishing as required.
06
Machining / Finishing
Precision machining and finishing to customer drawings, dimensions, tolerances and functional requirements.
07
Inspection & Dispatch
Final dimensional and visual checks, documentation, packing and delivery coordination.
★
Process Discipline
Process discipline, consistent quality and customer focus at every stage.
Metallurgy
Chemistry, temperature and treatment controls matched to the material requirement.
Mould & Pouring
Mould preparation, core quality and controlled pouring support sound, consistent castings.
Final Release
Dimensional, visual and documentation checks support release of finished components.
Quality Assurance
Quality control built into the manufacturing process
Our quality approach rests on process discipline, inspection and continuous improvement. Control points are selected to match customer specifications and the agreed production route.
Chemical Analysis
Spectrometer-based verification of material chemistry against the required composition, where applicable.
Sand Testing
Green-sand process control covering key moulding parameters that influence mould quality and repeatability.
Metallography
Microstructural examination for metallurgical validation, including graphite morphology and matrix structure as applicable.
Mechanical Testing
Hardness and tensile testing as required by the applicable specification or customer requirement.
Dimensional Inspection
Precision measuring instruments and gauges for dimensional checks against approved drawings and tolerances.
Process Control
Heat, process and final inspection records supporting consistency, traceability and corrective action.
Heat / Material RecordsMaterial identification and process information are maintained as applicable.
Inspection RecordsDimensional, visual and test results are checked against agreed requirements.
Corrective ActionProcess deviations are reviewed to support consistent future production.
Materials & Standards
SGI & CI casting capability
Grades and properties are selected to your drawings and specifications.
SGI / Ductile Iron Castings
- High strength and toughness for demanding applications.
- Suitable for components requiring higher mechanical performance.
- Grades and properties selected to customer drawings and specifications.
CI / Grey Cast Iron Castings
- Good machinability and dimensional stability.
- Suitable for a wide range of general engineering applications.
- Component geometry, grade and requirements aligned with customer specifications.
| Material | Standard |
|---|---|
| Grey Cast Iron | IS 210:2009 |
| Grey Cast Iron | ASTM A48/A48M-22 |
| Grey Cast Iron | EN 1561:2023 |
| SGI / Ductile Iron | IS 1865:1991 |
| SGI / Ductile Iron | ASTM A536-26 |
| SGI / Ductile Iron | EN 1563:2018 |
Final grade selection is confirmed against the approved customer drawing, specification and required mechanical properties. Where customer or industry specifications differ, the applicable agreed acceptance criteria take precedence.
Industries & Applications
Engineering components for diverse industrial requirements
Automotive
Agriculture & Tractors
Pumps & Valves
Power & Electrical
General Engineering
Infrastructure & Industry
Quality-focused operations
Process discipline and inspection across key manufacturing stages.
Customer-specific solutions
Components aligned to drawings, applications and agreed specifications.
Integrated value-added services
Casting supported by fettling, machining and surface-protection services.
Reliable supply coordination
Sourcing and process coordination support when required.
Engineering & development
Drawing review, process planning and development follow-up.
Commitment to delivery
Production planning, finishing and dispatch coordinated to agreed requirements.
Partner With Us
Reliable castings and beyond
We are always open to new opportunities, technical discussions and long-term collaborations. Whether you need castings, machining or surface-protection support, our team is ready to assist you. Let's build something meaningful together.