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Hejin Precision Casting OEM division offers the best solutions to meet your needs.
High Reliable Precision Castings |
| Casting Dimensional Tolerances Unit: mm |
| Stainless Steel |
| ASTM |
A351 CF3, CF3M, CF8, CF8M |
AISI |
304L, 316L, 304, 316, 431 |
JIS |
SCS13A, SCS14A, SCS23, SCS16A, SCS19A |
DIN |
1.4306, 1.4404, 1.4308, 1.4408 |
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Carbon Steel
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ASTM |
A216 WCB, WCC |
JIS |
SCPH2, SC450, SC480 |
DIN |
SCPH2, SC450, SC480 |
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Alloy Steel
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ASTM |
A217 WC6, WC9, C5, C12 |
ASTM |
A743 CN-7M |
Other materials upon request |
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Dimensions |
Normal Tolerance |
Premium Tolerance |
Roundness |
Flatness / Straightness |
Up to 12.5 |
± 0.08 |
± 0.08 |
0.27 |
0.40 |
| 12.5 ~ 25.4 |
± 0.25 |
± 0.13 |
0.40 |
0.40 |
| 25.4 ~ 50.8 |
± 0.33 |
± 0.20 |
0.40 |
0.40 |
| 50.8 ~ 76.2 |
± 0.41 |
± 0.25 |
0.60 |
0.60 |
| 76.2 ~ 101.6 |
± 0.48 |
± 0.30 |
0.60 |
0.60 |
| 101.6 ~ 127.0 |
± 0.56 |
± 0.36 |
0.90 |
0.90 |
| 127.0 ~ 152.4 |
± 0.64 |
± 0.38 |
0.90 |
1.40 |
| 152.4 ~ 177.8 |
± 0.71 |
± 0.41 |
0.90 |
1.20 |
| 177.8 ~ 203.2 |
± 0.86 |
± 0.43 |
0.90 |
1.20 |
| 203.2 ~ 228.6 |
± 0.86 |
± 0.43 |
0.90 |
1.20 |
| 228.6 ~ 254.0 |
± 1.02 |
± 0.48 |
1.20 |
1.40 |
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Maximum Casting Weight Per Piece : 50 Kilograms
Minimum Casting Wall Thickness : 1mm
Casting Surface Roughness : Ra 3.2 ~ 6.3 µm
Surface Roughness after Machining: Ra 0.4 ~ 3.2 µm
Available Materials (Meet ASTM, DIN and JIS)
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| Accurate Machining Unit: mm |
Dimensions |
Normal Tolerance |
Premium Tolerance |
Up to 3 |
0.010 |
0.006 |
3 ~ 6 |
0.012 |
0.008 |
6 ~ 10 |
0.015 |
0.009 |
10 ~ 18 |
0.018 |
0.011 |
18 ~ 30 |
0.021 |
0.013 |
30 ~ 50 |
0.025 |
0.016 |
50 ~ 80 |
0.030 |
0.019 |
80 ~ 120 |
0.035 |
0.022 |
120 ~ 180 |
0.040 |
0.025 |
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Why make parts from investment casting?
1. Producing Tight-Tolerance and Excellent Surface Finish
Casting dimensional tolerance :please refer to above table)
Surface finish : Ra 0.4 - 3.2 u.m.
Offering near-net-shape configuration, machining or finishing costs are substantially reduced or eliminated. |
2. The process is capable of producing precise dimensions
Minimum wall thickness : 1mm.
Minimum bore diameter : 2mm.
Product profile ranges from a few mm to hundreds mm.
Weight 50 kilograms or just a few grams.
3. Wide Range of Alloys
Such as stainless steel, carbon steel, alloy steel, or super alloy are suitable
for investment casting.
4. Investment casting is extremely versatile. Consequently, this method is able
to produce a wide array of products for diverse industries.
Why choose Hejin Precision Casting?
1. Quality Assurance
Fully integrated production lines equipped with advanced inspection facilities, quality is inherent in every phase of our operation from engineering to metallurgy, molding, casting, finishing, and final delivery. The innovative spirit and dedicated craftsmanship of the employees strive to provide you with highest quality across multiple industry standards.
2. Shorter Lead Time
Efficient management and adequate capacity production shorten the lead-time and offers you on-time delivery.
4. Responsive Services
Our diversified facilities, advanced foundry technology and highly skilled staff work as one to provide the best services you deserve. Our goal is to service all of your immediate needs.
5. Competitive Pricing
Privately held and totally operated factories in China maximize the labor advantage and eliminate the brokers' involvement to reduce excessive cost. Providing you with the best offers for the premium quality products is our promise. |
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