Green sand is mainly used in the production of small and medium-sized castings, especially in the production of large-scale mechanized modeling of castings such as automobiles, tractors, diesel engines, and textile machinery. Green sand moulding casting process (when paint is not applied) can also produce iron castings weighing several hundred kilograms.

Green sand is generally composed of new sand, old sand, bentonite, addenda and a proper amount of water. Before formulating the ratio of molding sand, it is necessary to determine the performance range and control target value of the molding sand according to the type of alloy poured, the characteristics and requirements of the casting, the molding method and the process and the cleaning method. After that, according to the variety and specifications of various raw materials, sand processing method, equipment, sand to iron ratio and the burning loss ratio of various materials are used to formulate the sand ratio. The technical indicators and proportions of molding sand can only be determined after long-term production verification.

▶ Capabilities of Sand Casting moulded by hand:
• Max Size: 1,500 mm × 1000 mm × 500 mm
• Weight Range: 0.5 kg - 500 kg
• Annual Capacity: 5,000 tons - 6,000 tons
• Tolerances: On Request or Standard
• Mold Materials: Green Sand Casting, Shell Mold Sand Casting.

▶ Capabilities of Sand Casting by Automatic Molding Machines:
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 500 kg
• Annual Capacity: 8,000 tons - 10,000 tons
• Tolerances: On Request.
• Mold Materials: Green Sand Casting, Shell Mold Sand Casting.

▶ Materials Available for Sand Casting Foundry at RMC:
• Brass, Red Copper, Bronze or other Copper-based alloy metals: ZCuZn39Pb3, ZCuZn39Pb2, ZCuZn38Mn2Pb2, ZCuZn40Pb2, ZCuZn16Si4
• Gray Iron:  HT150, HT200, HT250, HT300, HT350; GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350; GG10~GG40.
• Ductile Iron or Nodular Iron: GGG40, GGG50, GGG60, GGG70, GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2; QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2;
• Aluminium and Their Alloys
• Other Materials as per your unique requirements or according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB standards

Features:

1. ISO9001 Certificated, OEM & ODM both accepted.

2. Application: Gear Box Housing

3. Material: Ductile Iron QT450-10;

4. Main producing process:    1> Sand casting;2> Deburring;3> Sandblasting;4> Machining;5> Surface treatment.



Why RMC?


1. 18 years of experience in casting and forging for European and U.S. markets.

2.. OEM & ODM products application: Auto parts, Engine parts, Agriculture equipment parts, Train parts, Valve, Pump, etc.

3. Material: Grey Iron: HT100/HT150/HT200/HT250/HT300/HT350, Ductile Iron: QT400/QT450/QT500/QT600 and other iron etc...

4. Material Standard: ASTM, SAE, JIS, BS, DIN, ISO, GB.

5. Product weight: From 0.5~100kg;

6. Machining equipment: CNC, Lathe machine, Milling machine, Drilling machine, and so on;

7. Test equipment: Optical Spectrum Analyzer, CMM, Hardness test equipment, Tensile test machine;

8. Surface treatment: Blacking, Polishing, Anodize, Painting, Chrome plating, Zinc plating,Nickel plating, Tinting, Power coating, E-coating, etc...

9.  Applied software for specification drawings: Pro/E, Auto CAD, Solidwork, CAXA, UG. etc.

10.  Further available process: Turning, cutting, milling, bending, grinding, drilling, reaming, welding, stamping and threading.