Gray Iron Sand Casting Part

 Custom Gray Iron Sand Casting Part from China Iron Foundry with Green Sand Casting and Shell Mold Casting Processes.

Sand casting is a tranditional but also modern casting process. It uses green sand (moist sand) or dry sand to form the molding systems. The green sand casting is the oldest casting process used in history. When making the mold, the patterns made of wood or metal should be produced in order to form the hollow cavity. The molten metal then pour into the cavity to form the castings after cooling and solidification. Sand casting is less expensive than other casting processes both for mold development and unit casting part. The sand casting, always mean the green sand casting (if no special description). However, nowadays, the other casting processes are also use the sand to make the mold. They have their own names, such as shell mold casting, furan resin coated sand casting (no bake type), lost foam casting and vacuum casting.

We have different casting types for your choice. Part of the optional process for your project will be the selection of the casting process that will best serve your needs. The most popular form is sand casting which involves making a replica of a finished piece (or pattern) that is compressed with sand and binder additives to shape the final casting. The pattern is removed after the mold or impression has been formed, and the metal is introduced through a runner system to fill the cavity. The sand and the metal are separated and the casting cleaned and finished for shipment to the customer.

▶ Grey Iron Grades for Sand Casting at RMC Casting Foundry

• ISO 185: 100, 150, 200, 250, 300

• ASTM A48: NO.20, NO.25, NO.30, NO.35, NO.40, NO.45

• DIN 1691: GG10, GG15, GG20, GG25, GG30

• EN 1561: EN-GJL-100, EN-GJL-150, EN-GJL-200, EN-GJL-250, EN-GJL-300

• BS 1452: 100, 150, 200, 250, 300

• AS 1830: T150, T220, T260, T300

▶ Other Materials Available for Sand Casting

• Ductile Iron: EN-GJS-400-18, EN-GJS-400-15, EN-GJS-450-10, EN-GJS-500-7, EN-GJS-600-3, EN-GJS-700-2, EN-GJS-800-2

• Aluminium and Their Alloys

• Carbon Steel, Alloy Steel, Stainless Steel or other Materials and Standards on request

▶ Capabilities of Sand Casting moulded by hand at RMC's Iron Foundry

• Sand Casting Max Size: 1,500 mm × 1000 mm × 500 mm

• Weight Range: 0.5 kg - 500 kg

• Annual Capacity: 5,000 tons - 6,000

• tonsTolerances: On Request.

▶ Capabilities of Sand Casting by Automatic Molding Machines at RMC's Sand Foundry

• Max Size: 1,000 mm × 800 mm × 500 mm

• Weight Range of Sand Castings: 0.5 kg - 500 kg

• Annual Capacity: 8,000 tons - 10,000 tons

• Tolerances: On Request.

▶ Main Production Procedure of Sand Casting

• Patterns & Tooling Design → Making Patterns → Moulding Process → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment

▶ Sand Casting Inspection Capabilities

• Spectrographic and manual quantitative analysis

• Metallographic analysis

• Brinell, Rockwell and Vickers hardness inspection

• Mechanical property analysisLow and normal temperature impact testing

• Cleanliness inspection

• UT, MT and RT inspection

▶ Post-Casting Process

• Deburring & Cleaning

• Shot Blasting / Sand PeeningHeat Treatment: Normalization, Quench, Tempering, Carburization, Nitriding

• Surface Treatment: Passivation, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec

• Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding,

▶ General Commerial Terms

• Main workflow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding

• Leadtime: Estimatedly 15-25 days for tooling development and estimatedly 20 days for mass production.

• Payment Terms: To be negotiated.

• Payment methods: T/T, L/C, West Union, Paypal.

▶ Advantages of Sand Casting Process

• Low Cost due to its cheap and recyclable mold materials and simple production equipment.

• Wide range of unit weight from 0.10 kg to 500 kgs or even bigger.

• Various Structure from simple type to complex type.

• Suitable for production requirements of various quantity.

What Information Your Need to Calculate the Costs And Provide the Quotation of Custom Castings?
If possible, we request you provide us with the following information to provide our offer:

• 2D drawings with dimension tolerances and/or 3D models

• The desired grade of the metals and alloys

• Mechanical properties

• Heat treatment (if any)

• Quality assurance expectations

• Special finishing requirements (if any)

• Tooling if required or existing

• Due date of quote response

• Application of the desired castings or machining parts