Manufacturing Facilities
Eight stages. One controlled process.
Every casting moves through the same disciplined sequence — core, cast, treat, finish — before it reaches inspection.
Sand Casting Process
How a casting comes together.
Core Making
High quality core making for accurate, repeatable casting geometry.
Melting & Pouring
Aluminium melted under controlled conditions and poured with precision.
Sand Casting
High quality sand casting engineered for strong, reliable components.
Heat Treatment
Thermal treatment improves strength, durability and performance.
Vacuum Impregnation
Porosity elimination for leak-proof, pressure-tight castings.
Sandblasting
Clean, uniform surface preparation ahead of finishing.
Grinding & Finishing
Precision grinding and fettling that ensure accurate dimensions and a flawless finish.
Machining
Precision machining tailored to meet complex specifications and stringent industry standards.
Molding Making
Four molding-making methods, matched to the part.
The right core process depends on the casting's complexity, wall section and production volume.
CO₂ Core
- · CO₂ gas curing process
- · High strength and dimensional accuracy
- · Ideal for large production runs
No Bake Core
- · No bake (air-setting) process
- · Good strength and surface quality
- · Cost effective across applications
Grinding & Finishing
From raw casting to dispatch-ready part.
Grinding
- Remove extra material
- Smooth surface
- Accurate dimensions
Fettling
- Remove flash & burrs
- Fine edge cleaning
- Better surface finish
Sand Blasting
- Clean, uniform surface
- Remove sand & residues
- Improve appearance
Belt Grinding
- Smooth finishing
- Remove sharp edges
- Final touch
Inspection & Finished Parts
- Dimensional & surface check
- Quality assurance
- Ready for assembly
Packing & Dispatch
- Secure packing
- Safe dispatch
- On-time delivery
Start a Program
Send your drawing or sample — we’ll cast it right.
From core making to finished, inspected components, Metline Casting runs the full aluminium casting process in-house.