Our Mold Material Portfolio
Aluminum Injection Mold / Tooling
Utilizing high-strength 7075-T6 aluminum. Offers excellent heat dissipation, lowering cycle times by up to 25 percent. Ideal for rapid tooling prototypes and low-volume bridge production.
P20 금형강
A pre-hardened, versatile steel. The global industry standard for low-to-mid volume molding. Offers great dimensional stability, good machinability, and highly cost-effective tooling.
H13 공구강
A hardened steel providing extraordinary wear and thermal fatigue resistance. Highly recommended for processing abrasive glass-filled or carbon-filled composite polymers.
S136 금형강
A premium, hardened, corrosion-resistant stainless steel. It can be hand-polished to a mirror finish (SPI A-1), essential for optically clear lenses and medical-grade diagnostic parts.
718 금형강
An upgraded pre-hardened steel offering better core hardness and surface finish consistency than standard P20. Excellent for larger structural parts and medium-volume runs.
NAK80 금형강
A high-performance pre-hardened steel with uniform hardness. It offers superb machinability and excellent polishing characteristics up to SPI A-2 finish for high-aesthetic parts.
Precision Machining for Hardened Steels
JUCHENG’s in-house tooling room solves this:
- 25+ 5-Axis CNC Centers: Our advanced Haas and Mazak machines cut hardened steels smoothly with absolute sub-micron precision, eliminating parting line mismatch.
- EDM & Wire Cut Integration: We utilize high-precision sinker EDM to form sharp internal corners and intricate features on hardened steel mold cores.
- Zeiss CMM Verification: We inspect every mold block in our metrology lab to ensure the mold matches your CAD perfectly before the first shot is run.
Mold Materials Technical Matrix
| Material / Steel | Delivery Hardness | Guaranteed Mold Life (Shots) | Best Surface Finish (SPI) | Recommended Applications |
|---|---|---|---|---|
| Aluminum 7075-T6 | 150 HB | 1,000 - 10,000+ | SPI B-1 (미세 종이) | Prototypes, low-volume runs |
| P20 금형강 | 28 - 32 HRC | Up to 100,000 | SPI B-1 (미세 종이) | Commodity and general parts |
| 718 금형강 | 30 - 34 HRC | Up to 200,000 | SPI B-1 (미세 종이) | Medium-volume structural parts |
| NAK80 금형강 | 37 - 43 HRC | Up to 250,000 | SPI A-2 (High Polish) | Aesthetic parts, clear covers |
| H13 공구강 | 48 - 52 HRC (Hardened) | 500,000 - 1,000,000+ | SPI B-1 (미세 종이) | Abrasive glass-filled plastics |
| S136 금형강 | 50 - 54 HRC (Hardened) | 1,000,000+ | SPI A-1 (Mirror Polish) | Medical grade & optical parts |
Lifetime Mold Maintenance Guarantee
We store your custom injection molds in a highly secure, climate-controlled facility. Our in-house toolmakers perform routine cleaning, greasing, and preventative pin replacements after every run at no additional cost to you for the guaranteed life of the mold.
- ✓ Complete climate and moisture control storage
- ✓ Routine polishing and grease maintenance
- ✓ Complementary wear parts replacement (pins, ejectors)
