Investment Casting Foundry | Sand Casting

Stainless Steel Castings, Grey Iron Castings, Ductile Iron Castings

Aluminium Alloy CNC Machining Product

Short Description:

  • Material: Aluminium Alloy
  • Manufacturing Process: Investment Casting + CNC Precision Machining 
  • Weight: 2.60 kg
  • Available surface treatment: Painting, Anodizing, Passivation, Electroplating, Zinc-plating, Hot-Zinc-Plating, Polishing, Electro-Polishing, Nickel-Plating, Blackening, Geomet, Zintek


China OEM custom brass casting products with services of heat treatment, surface treatment and CNC machining. We could provide 3.1 Material Certificate of the casting metal according to EN 10204 if you need. Available inspection methods: dimension testing by CMM, non-destructive testing, chemical composition, mechanical properties, hardness testing, static balancing, dynamic balancing, air pressure and water pressure.


Product Detail

Product Tags

China OEM custom Aluminium alloy CNC machined products with services of customized casting, heat treatment, surface treatment and testing. 

CNC Precision Machining Capabilities
Facilities Quantity Size Range Annual Capacity General Accuracy
Vertical Machining Center (VMC) 48 sets 1500mm × 1000mm × 800mm 6000 tonn or 300000 pieces ±0.005
Horizontal Machining Center (VMC) 12 sets 1200mm × 800mm × 600mm 2000 tons or 100000 pieces ±0.005
CNC Machine 60 sets Max turning dia. φ600mm 5000 tons or 600000 pieces   

Precision machining combined with precision casting can be indeed considered as precision manufacturing. Though steel investment casting process is called as precision casting which indeed can obtained neat shape casting, however, that doesn't mean it doesn't need any secondary machining. Furthermore, the lost wax casting process applied in common industrial field has still stayed at low but economical level which is so far from so called neat shape casting.

Comparison of Different Casting Processes
Items Sand Casting Permanent Mold Casting Die Casting Investment Casting Chemically Bonded Shell Mold Casting
Typical dimensional tolerances, inches ± .010" ± .010" ± .001" ± .010" ± .005"
± .030" ± .050" ± .015" ± .020" ± .015"
Relative cost in quantity Low Low Lowest Highest Medium high
Relative cost for small number Lowest High Highest Medium Medium High
Permissible weight of casting Umlimited 100 lbs. 75 lbs. Ounces to 100 lbs. Shell ozs. To 250 lbs. no-bake 1/2 lb. - tons
Thinnest section castable, inches 1/10" 1/8" 1/32" 1/16" 1/10"
Relative surface finish Fair to good Good Best Very Good Shell good
Relative ease of casting complex design Fair to good Fair Good Best Good
Relative ease of changing design in production Best Poor Poorest Fair Fair
Range of alloys tht can be cast unlimited Aluminium and copper base preferable Aluminum base prepferable Unlimted Unlimited

RMC investment casting foundry came from a precision machining factory with more than decade of precision machining experience. Our precision machining workshop has been equipped with advanced 4-axes machining centers, CNC turning machines, CNC milling machines and necessary grinding mills, versatile turning lathes, milling machines and drilling and tapping machines. In order to keep the supply of high quality raw castings and expand our manufacturing capability, we just established our own steel investment casting foundry.


Capabilities for Casting at RMC
Casting Process Annual Capacity / Tons Main Materials Casting Weight Dimensional Tolerance Grade (ISO 8062) Heat Treatment
Green Sand Casting  6000 Gray Cast Iron, Ductile Cast Iron, Cast Al, Brass, Cast Steel, Stainless Steel  0.3 kg to 200 kg  CT11~CT14 Normalization, Quenching, Tempering, Annealing, Carburization
Resin Coated Sand Casting (Shell Casting) 0.66 lbs to 440 lbs CT8~CT12
Lost Wax Investment Casting Water Glass Casting 3000 Stainless Steel, Carbon Steel, Alloy Steel, Brass, Aluminium, Duplex Stainless Steel, Cast Iron 0.1 kg to 50 kg  CT5~CT9
0.22 lbs to 110 lbs
Silica Sol Casting 1000 0.05 kg to 50 kg CT4~CT6
0.11 lbs to 110 lbs
Lost Foam Casting 4000 Gray Iron, Ductile Iron, Alloy, Carbon Steel, Stainless Steel, Brass, Al 10 kg to 300 kg CT8~CT12
 22 lbs to 660 lbs
Vacuum Casting 3000 Gray Iron, Ductile Iron, Alloy Steel, Carbon Steel, Stainless Steel  10 kg to 300 kg CT8~CT12
 22 lbs to 660 lbs
High Pressure Die Casting 500 Aluminium Alloys, Zinc Alloys 0.1 kg to 50 kg CT4~CT7
0.22 lbs to 110 lbs

▶ Equipment for Precision Machining Components:
• Convertional Machining Machines: 20 sets.
• CNC Machines: 60 sets.
• 3-Axis Machining Center: 10 sets.
• 4-Axis Machining Center: 5 sets.
• 5-Axis Machining Center: 2 sets

▶ Precision Machining Capabilities:
• Max Size: 1,500 mm × 800 mm × 500 mm
• Weight Range: 0.1 kg - 500 kg
• Annual Capacity: 10,000 tons
• Accuracy: As per standards: .... or on request. Minimum ±0.003 mm
• Holes to ±0.002 mm dia.
• Flatness, Roundness and Straightness: As per standards or on request.

▶ Available Process:
• Turning
• Milling
• Lathing
• Drilling
• Honing, Grinding.
• Washing

▶ Available Ferrous Metal Materials for Precision Machining Components:
• Cast Iron including gray iron and ductile iron
• Carbon Steel from low carbon steel, medium carbon steel and high carbon steel.
• Steel Alloys from standard grades to special grades on request.
• Aluminum and their alloys
• Brass and Copper
• Zinc and their alloys
• Stainless Steel, Duplex, Corrosion-resistant Steel, High-temperature Steel.

▶ 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.


China CNC Precision Machining Company
Precision CNC Machining Factory

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