Sand Casting
Sand, combined with a suitable binder can be packed tightly about a pattern. When the pattern is removed, a cavity that retains the shape of the part remains.
Sand casting is one of the most popular and simplest types of casting that has been used for centuries. It allows for smaller batches to be made compared to permanent mold castings at a very reasonable cost. This allows manufacturers to create products at a low cost and permits small size operations.
Sand casting process is used to produce ductile iron castings and grey iron casting.
At Qualitas, this is what we offer:
- Moulding Process: Green Sand, CO2, No Bake, Shell Sand (croning) and Centrifugal.
- Core Making: Shell, Sand, Cold Box, CO2, No Bake.
- Moulding Equipment: Dismatic, High Pressure Moulding, Jalt Squeeze Machine Moulding, Manual, Automatic Mold Handling Plant, Mechanized Sand Plants.
- Core Making Equipment: Shell Core Shooters, Cold Box Core Shooters
- Furnaces: Medium Frequency Induction, Cupola, Arc Furnaces.
- Heat Treatment: Annealing, quench and temper, Austenitizing.
- Fettling / Cleaning / De-burring Equipment: Sand Blasting, Shot Blasting, Chemical Cleaning, Pickling and Grinders.
- Testing: Spectrometer, Chemical Wet Analysis, Microscope, Radiography, X-Ray, Hardness Tests, Tensile, Impact Testing, Mold / Core Hardness Tests, Magna-flux Crack detector, Leak / Pressure Testing.
- Pattern Making: Material - Cast Iron, Gunmetal, Wood, Aluminum
- Aids: CNC, VMC, HMC and Manual CAD/CAM, Solid Modeling and Rapid Tooling.
- Secondary Operation Facilities: Machining- CNC, VMC, HMC and Conventional Painting, Powder Coating. Plating: Zinc, Nickel, Chrome, Tin, etc.
Process wise details of Castings
We encompass all the processes in castings cater to weight Range of 5 grams to 5000 Kg.
Casting processes
- Green sand
- Furron Sand
- Shell ( Croning) Moulding
- Investment (Lost Wax) Casting
- Gravity Die Casting
- Pressure Die Casting
- Centrifugal Casting
Moulding Capabilities
High Pressure / Disamatic
- Jolt squeeze machines
- Manual moulding for large parts
- Automatic sand plants
Casting Materials
Ferrous
- Iron
- ADI
- Ductile Iron (SG Iron)
- LT grades 40.3LT and 35.22LT
- Grey Iron (All grades)
- Steel
- Plain Carbon Steels and Alloy Steels
- Stainless steel
Non - Ferrous
- Aluminum
- Copper
- Bronze
- Brass
Sand Casting Grades
Ductile Iron:-
ASTM A536 80-55-06
ASTM A536 400-15
ASTM A536 400-12 (GGG 40 / EN-GJS-400-15)
ASTM A536 500-7 (GGG 50 / EN-GJS-500-7)
ASTM A536 400-18 (GGG 40.3 / EN-GJS-400-18)
400-18LT (EN-GJS- 40.3 LT)
350-22LT ( EN GJS-35.22LT)
Grey Iron:-
All grades GG20 (EN-GJL-200), GG25 ( EN-GJL- 250) , GG30( EN-GJL- 300)
Sand Casting Range:
| Process | Sand Casting |
| Weight | 50 grams to 5 tons - single piece |
| Size | Up to 3 m length |
| Material | Ductile iron casting (nodular iron), gray iron |