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Sand Casting is a traditional metal casting process that involves creating a mold from compacted sand, then pouring molten metal into the cavity to form a desired shape.
Once the metal solidifies, the sand mold is broken apart to remove the final casting.
DEZE Technology provides a variety of casting services, and users can choose the appropriate casting process according to their needs.
If you don’t know which casting method is more suitable for your product, please contact us and our professional engineers will help you.
A pattern is a replica of the final part, slightly oversized to account for metal shrinkage during cooling.
It is usually made from wood, palasitika, po o uamea.
The pattern is placed inside a molding box (flask), ma sand mixed with a binder (like clay or resin) is packed around it.
The mold is made in two halves:
Cores are sand shapes inserted into the mold to form internal cavities in the casting.
Molten metal is prepared in a furnace and poured into the mold through a sprue ma runner system.
After pouring, the metal is allowed to cool and solidify inside the mold.
Once the metal has cooled, the sand mold is broken apart to retrieve the solid casting.
Excess material such as sprues, risers, and flash are removed by cutting or grinding.
Sand casting supports a wide range of ferrous and non-ferrous metals. The choice depends on the desired mechanical properties, tetee a'a, mamafa, ma tau.
These metals contain iron and are commonly used for high-strength and structural applications.
| Meafaitino | Vasega | Meatotino Autu | Talosaga masani |
|---|---|---|---|
| Efuefu ua punou | ASTM A48, EN-GJL-200/300 | Fa'aola lelei, gabration damping, Malosi Malosiʻaga | poloka afi, fa'avae masini, fale |
| U'amea u'amea | ASTM A536 (60-40-18), EN-GJS-400 | Malosi, ductility, le mautonu tetee | Crankshafts, mea fa'aoga, mea fa'apipi'i paipa, masini mamafa |
| Uamea Carbon | AISI 1020, AISI 1045, AISI 1060 | Malosi maualuga, taugofie, weldable | Vaega faufale, u'amea, industrial tools |
| Uamea uamea | AISI 4140, 4340, ASTM A387, EN 34CrNiMo6 | Tete'e vevela, Faanoanoa, improved wear resistance | Meafaiva, oti, pressure parts, aerospace |
| Apa siliva | AISI 304, 316, 410, 420, Cf8, Cf8m | Lelei le fa'afefeteina, hygienic, malosi maualuga | Food-grade equipment, alavai, pamu vaega, marine use |
These are metals without significant iron content, typically used for corrosion resistance and weight savings.
| Meafaitino | Vasega | Meatotino Autu | Talosaga masani |
|---|---|---|---|
| Alumini Aluminum | A356, A319, 6061, LM6 | Māmā, e mafai ona pala, good conductivity, toe faaleleia | Ta'avale, vaega tau vaalele, electrical enclosures |
| 'apamemea (Cu-Sn) | C83600, C93200, Sae 660 | Excellent wear/corrosion resistance | Bushings, mea fa'aoga, vaega o le gataifale |
| 'apamemea (Cu-Zn) | C36000, C37700, CW614N | Machinability lelei, attractive finish, e mafai ona pala | Plumbing fixtures, decorative hardware |
| Kopa | C11000, C12200 | Outstanding electrical and thermal conductivity | Electrical connectors, pito, bus bars |
| Zinc Alloys | Zamak 3, Zamak 5, ZA-8 | maualalo le liusuavai, excellent detail and surface finish | Complex small parts, die-cast components |
| Manesium Alloys | AZ91D, AM60 | Extremely lightweight, maualuga le malosi-i-mamafa fua faatatau | Aerospace, electronics housings, automotive panels |
Sand casting’s versatility and low tooling cost make it ideal for a broad spectrum of applications—from heavy industrial components to artistic pieces:
poloka afi, ulu ogalaau, brake drums, fale felauaiga, suspension knuckles, and railway wheels.
Fale pamu, tino valve, gearbox casings, compressor shells, and large machine bases.
Pump and compressor internals, refinery equipment housings, piping tees, tulilima, ma flanges.
Propeller hubs, rudder stocks, sea-water valve bodies, deck fittings (cleats, chocks), and anchor components.
Excavator buckets, bulldozer blades, crane sheaves, and structural castings for mining gear.
Turbine casings, steam-generator housings, pump volutes, and hydropower turbine parts.
Tractor housings, plowshares, combine-harvester components, and irrigation pump assemblies.
Statues, relief panels, fountains, ornamental railings, and façade elements.
Vaega lafo o taavale
Vaega e lafo ai vaalele
Suau'u ma kesi meafaigaluega meafaigaluega
Mea faigaluega faamiliteli vaega lafo
304 Stainless Steel Auto Parts
316 Stainless Steel Flanges
Auto parts
Hardware parts
Auto parts
CF8M Stainless Steel Pump parts
2205 Duplex Stainless Steel Machinery parts
Machinery parts
Sand casting is a metal-forming process where a pattern creates a cavity in a sand-binder mixture, into which molten metal is poured.
A maeʻa le faʻasologa, the sand mold is broken away to reveal the finished part.
Nearly any metal can be sand-cast, including ferrous alloys (gray and ductile iron, carbon and alloy steels) and non-ferrous alloys (alumini, apamemea, apamemea, kopa, zinc, and magnesium).
Typical dimensional tolerances are around ± 0.5 mm i le 100 mm of dimension, with surface finishes of Ra 6–12 µm.
Select sand casting for low-to-medium volumes, large or complex parts, rapid prototyping, or when low tooling cost is a priority—even if final parts require some machining.
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