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Sand Casting

IQ-Enterprises (IQE) is a premium manufacturing firm, located in Indianapolis, Indiana, and in China. Established in 2004, IQE supplies high quality and low cost iron sand casting. We make ductile iron casting, gray iron casting and malleable iron casting. The casting processes include green sand casting, shell casting, and resin coated sand casting. Castings are handled with great care to meet required dimensions, surface finish, etc. IQE also offers engineering services and secondary operations, such as: machining, assembly, plating, e-coating, etc. We also provide steel casting.

Communication, Quality, On-Time Delivery: In the US, we handle your project from beginning to end. We communicate design ideas, and convert all standards via bilingual Engineers to help work through all other challenges to make sure we exceed your quality, service and financial goals. Quality, on-time delivery and customer satisfaction is the goal of our service. IQE’s quality management team in China checks the product quality at each stage in the production process to make sure the product meets the specifications before shipping. Based on request, we deliver your product to your dock or may stock your product in North America. ISO 9001-2000 certified.

Sand Casting Samples

Valve Body
Pipe Bracket

View More Samples

Iron sand casting foundry equipment list

Equipment Name Equipment Type Equipment Origin Equipment Q’ty Capacity Parameter
Melting Equipment
Cupola 5T Korea 1 set 5T/h automatic , hot wind T=1500 C°
3T China 1 set 3T/h normal hot wind T=1500 C°
Electrical Holding Furnace 3T Korea 1 Set 400KW 3T/h
Sand Treatment Equipment
Sand mixing line Japan/Korea 3 sets 1500~3500kgs/time
Molding Line
PC Semi Automatic
molding line
Korea 23 sets 300x380x100/100mm(sand box inner dimension) 300 mold/h/set
RMB-2016 Automatic
molding line
Japan 2 sets 410x510x150/150mm(sand box inner dimension) 120 mold/h
KW368 Automatic
molding line
Germany 1 set 410x570x130/110mm(sand box inner dimension) 240mold/h
148C molding line China 2 sets 800x600x250mm(sand box inner dimension) 60 mold/h
Core Making Equipment
Automatic sand mixing
for core making
Korea 1 set 4T/h
Shell core machine Korea 19 sets 1.4-2 minutes/time
Surface treatment Line
Shot blast Korea 5 sets 1-1.5T/20 minutes
Heat Treatment Line
Continuous tunnel type
heat treatment line
Korea 2 sets 26000x2240x1800mm 1300kgs/h
Quality Assurance Instrument
Spectrometer ARL3460 Swiss 1 set Quick analysis of chemical content for raw material
CMM from Brown & Sharp U.S.A 1 set Dimensional check for tooling and finished parts
microscope for
Japan 1 set Could print out the photo of metallographic microstructure of raw material

Commonly used cast iron and steel

Cast gray iron: more info

China GB/T 9439-1988: HT100 HT150 HT200 HT250 HT300 HT350
ASTM A159-82: G1800 G2500 G3000 G3500 G4000
UNS: F10004 F10005 F10009 F10007 F10008
ASTM A48-00: No. 20 No. 25 No. 30 No. 35
No. 40
No. 45 No. 50

Cast ductile iron: more info

China GB/T1348-1988: QT400-18 QT400-15 QT450-10 QT500-7 QT600-3
ASTM A536-99: 60-40-18 65-45-12 80-55-06 ~80-55-06
UNS: F32800 F33100 F33800 F33800

Cast malleable iron: more info

China GB/T9440-1988: KTH300-06 KTH330-08 KTH350-10 KTH370-12
ASTM A47: 32510 35018

Cast steel: more info

China, GB: 20 45 65Mn 20Cr 40Cr 35CrMo 42CrMo 40CrNiMo GCr15
ASTM: 1020 1045 1566 5120 5140 4135 4140 8620 5210
AISI/UNS: G10200 G10450 G51200 G51400 G41350 G41400 G86200 G52100
SAE: 1020 1045 1566(1066) 5120 5140 4135 4140 8620 5210

Sand casting technical data and secondary operations

Iron sand casting tolerances Green sand casting: 0.125 – 0.0625 / ft. Shell-mold casting: 0.094 – 0.031 / ft.
Part weight range 0.22 lbs to 220 lbs
Sand casting mold draft 1 – 3 degrees
Sand casting pattern material Using wood or metal.
Sand casting tooling lifetime Wood mold: 300-400 cycles (or less for large part) Metal mold: a few 100K
Deburring belt sanding, grinding machines, brush deburring, filing, sand blast, tumbling, vibration deburring, etc.
Sand casting surface roughness (RMS, µin) Green sand casting surface roughness: 250-300; Shell casting surface roughness: 150-200
Normal lead time Tooling and sample: 2 weeks – 3 weeks. Complicated parts take longer.
Secondary operations
  • Heat treatment
  • Magnetic particle inspection
  • Machining
  • Zinc plating
  • Nickel plating
  • E-coating

Engineering assistance

Impact simulation of a cone shaped plastic cushion

Engineering: Based on request, IQE can provide the following services for our customers:

  • CAD model development from your sample;
  • Stress analysis, which helps in knowing whether the design is adequate and optimized, and what changes are needed before the physical part is made;
  • Some Mechanical and Chemical Lab tests for your prototype part.

Industries served

Automotive, appliances, communications, electric motors, decoration.