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Sand Casting Service

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Sand Casting Service

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.

What is Sand Casting

DEZE-Sand-Casting-Service

Detailed Steps of Sand Casting

Samar da Tsarin

1. Samar da Tsarin

A pattern is a replica of the final part, slightly oversized to account for metal shrinkage during cooling.

It is usually made from wood, filastik, ko karfe.

  • Manufar: To create the mold cavity in the sand.
  • Nau'ukan: Split pattern (for complex parts), match-plate pattern, or cope-and-drag patterns.
  • Shrinkage allowance: Typically 1–3% depending on the metal.
Yin Mold

2. Yin Mold

The pattern is placed inside a molding box (Flas), kuma sand mixed with a binder (like clay or resin) is packed around it.

The mold is made in two halves:

  • Cope (top half) kuma Drag (bottom half).
  • The pattern is removed, leaving a cavity in the shape of the part.
  • If required, cores are inserted into the mold to form internal features or hollow sections.
Core-Making

3. Core Making (If Applicable)

Cores are sand shapes inserted into the mold to form internal cavities in the casting.

  • Made from core sand, which is more durable and heat-resistant.
  • They must be accurately placed and often supported with chaplets (metal spacers).
  • Cores are removed after casting, usually broken out and discarded.
Metal Melting and Pouring

4. Metal Melting and Pouring

Molten metal is prepared in a furnace and poured into the mold through a spru kuma runner system.

  • The system includes ƙofa (to direct flow), risers (to compensate for shrinkage), kuma vents (to let gases escape).
  • Metals used: jefa baƙin ƙarfe, aluminum, karfe, tagulla, da dai sauransu.
  • Care is taken to avoid turbulence, gas entrapment, and inclusions during pouring.
Kwantar da hankali da ƙarfi

5. Kwantar da hankali da ƙarfi

After pouring, the metal is allowed to cool and solidify inside the mold.

  • Cooling rates affect grain structure and mechanical properties.
  • Proper riser design ensures that metal shrinkage is compensated to avoid internal voids.
  • The solidification time depends on part thickness and metal type.
Shakeout and Mold Removal

6. Shakeout and Mold Removal

Once the metal has cooled, the sand mold is broken apart to retrieve the solid casting.

  • This step is called zzabta.
  • The sand can often be recycled after cooling and screening.
  • The casting is rough at this point and may have residual sand or oxide layers.
Tsaftacewa da Kammalawa

7. Tsaftacewa da Kammalawa

Excess material such as sprues, risers, and flash are removed by cutting or grinding.

  • The surface may be tsabtace by shot blasting, tumbling, or pickling.
  • Machining is performed as needed to achieve final tolerances.
  • Surface treatments or coatings (misali, zane, goge baki) ana iya amfani dashi.

What materials are used in sand casting?

Sand casting supports a wide range of ferrous and non-ferrous metals. The choice depends on the desired mechanical properties, juriya lalata, nauyi, da tsada.

Ferrous Metals

These metals contain iron and are commonly used for high-strength and structural applications.

Kayan abu Maki Abubuwan Maɓalli Aikace-aikace na yau da kullun
Grey jefa baƙin ƙarfe Astm A48, EN-GJL-200/300 Kyakkyawan simintin gyare-gyare, Rashin damuwa, ikon m Toshe injin, tushe inji, gidaje
Iron Ductile ASTM A536 (60-40-18), EN-GJS-400 Tauri, ductility, gajiya juriya Crankshaft, gears, kayan aikin bututu, injina masu nauyi
Karfe Karfe AISI 1020, AISI 1045, AISI 1060 Babban ƙarfi, m, weldable Structural parts, shafts, industrial tools
Alloy Karfe AISI 4140, 4340, ASTM A387, EN 34CrNiMo6 Juriya mai zafi, Ƙarfin hali, improved wear resistance Gear, ya mutu, pressure parts, sararin samaniya
Bakin Karfe AISI 304, 316, 410, 420, Cf8, Cf8m Kyakkyawan juriya na lalata, hygienic, babban ƙarfi Food-grade equipment, bawuloli, kabewa, marine use

Non-Ferrous Metals

These are metals without significant iron content, typically used for corrosion resistance and weight savings.

Kayan abu Maki Abubuwan Maɓalli Aikace-aikace na yau da kullun
Aluminum Alloys A356, A319, 6061, LM6 Mai nauyi, lalata-resistant, good conductivity, Sake bugawa Motoci, sassan sararin samaniya, electrical enclosures
Tagulla (Cu-Sn) C83600, C93200, Sa.e 660 Excellent wear/corrosion resistance Bushings, gears, kayan aikin ruwa
Brass (Cu-Zn) C36000, C37700, CW614N Kyakkyawan inji, attractive finish, lalata-resistant Plumbing fixtures, decorative hardware
Copper C11000, C12200 Outstanding electrical and thermal conductivity Electrical connectors, tashoshi, bus bars
Zinc Alloys Zamak 3, Zamak 5, ZA-8 Ƙananan narkewa, excellent detail and surface finish Complex small parts, die-cast components
Magnesium Alloys AZ91D, AM60 Extremely lightweight, babban ƙarfi-da-nauyi rabo Jirgin sama, electronics housings, automotive panels

Advantages of DEZE Sand Casting

Advantages of DEZE Sand Casting
  • 1. Cost-Effective for Low to Medium Production
  • 2. Wide Range of Material Compatibility
  • 3. No Size Limitations
  • 4. Complex Geometries Possible
  • 5. Short Lead Time
  • 6. Recyclable Materials
  • 7. Suitable for a Variety of Surface Finishes

Applications of Sand Casting

Sand casting’s versatility and low tooling cost make it ideal for a broad spectrum of applications—from heavy industrial components to artistic pieces:

Automotive & Transportation

Toshe injin, shugabannin silinda, brake drums, gidajen watsawa, suspension knuckles, and railway wheels.

Industrial Machinery & Equipment

Gidajen famfo, bawul jikin, gearbox casings, compressor shells, and large machine bases.

Oil & Gas & Petrochemical

Pump and compressor internals, refinery equipment housings, piping tees, mashaya, da flanges.

Marine & Shipbuilding

Propeller hubs, rudder stocks, sea-water valve bodies, deck fittings (cleats, chocks), and anchor components.

Construction & Heavy Equipment

Excavator buckets, bulldozer blades, crane sheaves, and structural castings for mining gear.

Samar da Wutar Lantarki

Turbine casings, steam-generator housings, pump volutes, and hydropower turbine parts.

Injin Noma

Tractor housings, plowshares, combine-harvester components, and irrigation pump assemblies.

Art, Architecture & Decorative

Statues, relief panels, fountains, ornamental railings, and façade elements.

Filin mota

Filin mota

Abubuwan simintin mota

Filin sararin samaniya

Filin sararin samaniya

sassan simintin jirgin sama

Filin bunkasa mai da iskar gas

Filin mai da iskar gas

Kayayyakin kayan aikin mai da iskar gas

Filin soja

Filin soja

Kayan aikin soja na jefa sassa

Sand Casting Parts Gallery

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Sand Casting Parts

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Sand Casting Parts

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Sand Casting Parts

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2205 Duplex Stainless Steel Machinery parts

Sand Casting Parts

Sand Casting Parts

Machinery parts

Frequently Asked Questions about Sand Casting

HIDIMAR

1. What is sand casting?

Sand casting is a metal-forming process where a pattern creates a cavity in a sand-binder mixture, into which molten metal is poured.

Bayan Socialification, the sand mold is broken away to reveal the finished part.

2. Which metals can be used in sand casting?

Nearly any metal can be sand-cast, including ferrous alloys (gray and ductile iron, carbon and alloy steels) and non-ferrous alloys (aluminum, tagulla, tagulla, jan karfe, zinc, da magnesium).

3. How accurate is sand casting?

Typical dimensional tolerances are around ± 0.5 mm a kowace 100 mm of dimension, with surface finishes of Ra 6–12 µm.

4. What are the main advantages of sand casting?

  • Low tooling cost and rapid mold changes
  • Ability to produce very large or complex shapes
  • Broad material compatibility
  • Recyclable mold materials

5. What are the limitations of sand casting?

  • Relatively rough surface finish and looser tolerances
  • Higher scrap rate from gating and risers
  • Slower cycle times due to mold preparation and shakeout

6. How do I minimize casting defects in sand casting?

  • Design proper gating and risering for directional solidification
  • Use degassing and filtration to remove inclusions
  • Control mold compaction and venting to avoid gas porosity

7. When should I choose sand casting over other methods?

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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Casting & Machining CIKI

Ilimi

Tunanina na tsayawa don tsarkakakkiyar karfe da oyedy melting maki a cikin ° C, °F & K-Cikakke don Injiniya, waikai, Kuma kowa yana aiki tare da moltt ɗin ƙarfe.
Gano da 10 Nau'in alumini ya gama kuma ka koyi yadda kowace ƙare take inganta juriya, saka kariya, da kuma roko na gani. Daga Andizing da foda mai amfani da wuta zuwa lantarki da buga canjin canjin karfe.
Bincika duniyar aluminum sutthoy jefa. Fahimtar mahimman hanyoyin kamar Sand, mutu simintin, da kuma saka hannun jari, Aikace-aikacen su, iko mai inganci, da kuma yadda zaka zabi hanya mafi kyau don bukatun masana'antar ku.