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The following data show typical capability of our supplying foundries. If you have a project out of the range, we can certainly source a supplier and (or) develop a process to achieve your goal!

 

Table 1. Casting dimensional tolerance (Metric unit)

Casting Nominal Size (mm)

Casting Dimension Tolerance CT Grade Number & Tolerance (mm)

From

To

5

6

7

8

9

10

11

12

100

160

0.62

0.88

1.2

1.8

2.5

3.6

5

7

160

250

0.72

1

1.4

2

2.8

4

5.6

8

250

400

0.78

1.1

1.6

2.2

3.2

4.4

6.2

9

400

630

0.9

1.2

1.8

2.6

3.6

5

7

10

630

1000

1

1.4

2

2.8

4

6

8

11

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. Casting dimensional tolerance (English unit)

Casting Nominal Size (inch)

Casting Dimension Tolerance CT Grade Number & Tolerance (inch)

From

To

5

6

7

8

9

10

11

12

3.9

6.3

0.024

0.035

0.047

0.071

0.098

0.142

0.197

0.276

6.3

9.8

0.028

0.039

0.055

0.079

0.11

0.157

0.22

0.315

9.8

15.7

0.031

0.043

0.063

0.087

0.126

0.173

0.244

0.354

15.7

24.8

0.035

0.047

0.071

0.102

0.142

0.197

0.276

0.394

24.8

39.4

0.039

0.055

0.079

0.11

0.157

0.236

0.315

0.433

 

 

 

Table 3. Steel Foundry Capability (Metric unit)

Process

Min. casting size (mm)

Max. casting size (mm)

Min. casting wall thickness (mm)

Casting size tolerance CT grade in Table 1

Casting surface roughness (Ra/mm)

Green sand hand molding process

50x25x10

5000x2500x2000

8

11~13

25~100

Green sand machine molding process

50x25x10

1000x800x500

8

8~10

12.5~50

Water glass sand process

50x25x10

5000x2500x2000

8

9~11

12.5~50

Air-set/no bake sand process

50x25x10

5000x2500x2000

8

9~11

12.5~50

Water glass Investment casting process

25x25x10

1000x800x500

2

7~9

3.2~12.5

Colloidal silica Investment casting Process

25x25x10

1000x800x500

2

6~7

3.2~12.5

 

 

Table 4. Steel Foundry Capability (English unit)

Process

Min. casting size (Inch)

Max. casting size (Inch)

Min. casting wall thickness (Inch)

Casting size tolerance CT grade in Table 2

Casting surface roughness (Ra/min)

Green sand hand molding process

2x1x0.5

200x100x80

0.3

11~13

1000~4000

Green sand machine molding process

2x1x0.5

40x32x20

0.3

8~10

500~2000

Water glass sand process

2x1x0.5

200x100x80

0.3

9~11

500~2000

Air-set/no bake sand process

2x1x0.5

200x100x80

0.3

9~11

500~2000

Water glass Investment casting process

2x1x0.5

40x32x20

0.08

7~9

125~500

Colloidal silica Investment casting Process

2x1x0.5

40x32x20

0.08

6~7

125~500

 

 

 

Table 5. Iron Foundry Capability (Metric unit)

Process

Min. casting size (mm)

Max. casting size (mm)

Min. casting wall thickness (mm)

Casting size tolerance CT grade in Table 1

Casting Ra surface roughness (Ra/mm)

Green sand hand molding process

50x25x10

5000x2500x2000

4

11~13

12.5~100

Green sand machine molding process

50x25x10

1000x800x500

4

8~10

6.3~50

Water glass sand process

50x25x10

5000x2500x2000

4

9~11

6.3~50

Air-set/no bake sand process

50x25x10

5000x2500x2000

4

9~11

6.3~50

Water glass Investment casting process

25x25x10

1000x800x500

1.5

7~9

3.2~12.5

Colloidal silica Investment casting Process

25x25x10

1000x800x500

1.5

6~7

3.2~12.5

 

 

Table 6. Iron Foundry Capability (English unit)

 

 

Process

Min. casting size (inch)

Max. casting size (inch)

Min. casting wall thickness (inch)

Casting size tolerance CT grade in Table 2

Casting Ra surface roughness (Ra/min)

Green sand hand molding process

2x1x0.5

200x100x80

0.15

11~13

500~4000

Green sand machine molding process

2x1x0.5

40x32x20

0.15

8~10

250~2000

Water glass sand process

2x1x0.5

200x100x80

0.15

9~11

250~2000

Air-set/no bake sand process

2x1x0.5

200x100x80

0.15

9~11

250~2000

Water glass Investment casting process

1x1x0.5

40x32x20

0.06

7~9

125~500

Colloidal silica Investment casting Process

1x1x0.5

40x32x20

0.06

6~7

125~500

 

 

Table. 7. Non-ferrous Foundry Capability (Metric unit)

Process

Min. casting size (mm)

Max. casting size (mm)

Min. casting wall thickness (mm)

Casting size tolerance CT grade in Table 1

Casting Ra surface roughness (Ra/mm)

Green sand hand molding process

50x25x10

5000x2500x2000

3

9~11

12.5~100

Green sand machine molding process

50x25x10

1000x800x500

3

7~9

6.3~50

Air-set/no bake sand process

50x25x10

5000x2500x2000

3

6~8

6.3~50

Water glass Investment casting process

50x25x10

5000x2500x2000

1.0

6~8

3.2~12.5

Colloidal silica Investment casting Process

25x25x10

1000x800x500

1.0

4~6

3.2~12.5

 

 

Table. 8. Non-ferrous Foundry Capability (English unit)

Process

Min. casting size (mm)

Max. casting size (mm)

Min. casting wall thickness (mm)

Casting size tolerance CT grade in Table 2

Casting Ra surface roughness (Ra/min)

Green sand hand molding process

2x1x0.5

200x100x80

0.12

9~11

500~4000

Green sand machine molding process

2x1x0.5

40x32x20

0.12

7~9

250~2000

Air-set/no bake sand process

2x1x0.5

200x100x80

0.12

6~8

250~2000

Water glass Investment casting process

1x1x0.5

200x100x80

0.04

6~8

125~500

Colloidal silica Investment casting Process

1x1x0.5

40x32x20

0.04

4~6

125~500

 

 

Table 9. Die casting manufacturing capability (Metric unit).

  
 
                                                                                                                                                                                            

Alloy

Min. casting size (mm)

Max. casting size (mm)

Min. casting wall thickness (mm)

Casting size tolerance CT grade in Table 1

Casting Ra surface roughness (Ra/mm)

Al alloy

10X10X5

1000x1000x800

1.0

5~7

1.6~6.3

Zn alloy

10X10X5

1000x1000x800

0.8

4~6

0.8~6.3

 

 

Table 10. Die casting manufacturing capability (English unit).

 

Alloy

Min. casting size (in)

Max. casting size (in)

Min. casting wall thickness (in)

Casting size tolerance CT grade in Table 2

Casting Ra surface roughness (Ra/min)

Al alloy

0.5X0.5X0.2

40x40x32

0.04

5~7

63~250

Zn alloy

0.5X0.5X0.2

40x40x32

0.03

4~6

32~250