Parameters
| Item | Specification Details |
| Main Material | 304 Stainless Steel; custom 316 stainless steel available upon request |
| Single Hinge Weight | 0.1g – 5kg, customizable according to load requirements |
| Dimensional Tolerance | CT4–CT6 high precision investment casting tolerance; CNC finishing tolerance ±0.02mm |
| Surface Treatment | Mirror polishing, brushed finish, passivation, sandblasting, matte treatment |
| Custom Production Basis | Customer CAD drawings / Physical sample 3D scanning reverse design |
| Load-Bearing Range | Light load (0–20kg), medium load (20–100kg), heavy load (100–500kg) customized |
| Corrosion Resistance | Salt spray test ≥480 hours after passivation, anti-rust in coastal & humid environments |
| Working Temperature | -30℃ ~ 250℃, stable mechanical performance |
| Industry Compliance | RoHS, food contact safety standards, marine anti-corrosion hardware standards |
| MOQ Policy | Small prototype trial orders & mass engineering bulk orders are both acceptable |
What are the advantages of Shata Machinery's Investment Cast 304 Stainless Steel Hinges?
1. Superior rust and corrosion resistance.
2. One-piece investment casting (no joints or seams).
3. High tensile strength; resistant to deformation under load.
4. Smooth casting surface, reducing post-processing costs.
5. Precise dimensional accuracy for assembly.
6. Flexible customization of shape and load-bearing structure.
7. Smooth operation with minimal wear.
8. Food- and medical-grade safe materials.
What types of 304 stainless steel hinges can Shata Machinery manufacture?
In which sectors are the 304-grade hinges manufactured by Shata Machinery used?
Marine, yacht, and coastal offshore equipment
Food processing machinery, baking ovens, and beverage production equipment
Medical cabinetry, sterilization equipment, and laboratory instruments
Industrial electrical control cabinets and machinery housings
Outdoor engineering facilities and stainless steel doors/cabinets for gardens and courtyards
Bathroom cabinetry and shower enclosure hardware
Equipment for chemical workshops exposed to mildly acidic or alkaline environments
Production
Which raw materials are selected?
- Standard Version: 304 stainless steel; suitable for general industrial applications, cabinets, outdoor use, and standard marine hinges.
- Upgraded Version: 316 stainless steel; suitable for coastal environments with high salt-spray exposure and chemical processing facilities.
- Custom Alloy: Specialized stainless steel formulation designed for ultra-high temperatures and heavy-duty load-bearing applications.
What does the complete production process look like?
- Drawing/Sample Verification: Review customer engineering drawings; if original drawings are unavailable, scan physical samples to create 3D models.
- Wax Injection & Tree Assembly: Inject high-precision wax patterns and assemble them into a cluster according to hinge specifications.
- Shell Making & Dewaxing: Coat wax patterns with refractory slurry and melt out the wax at high temperatures to form a hollow casting mold.
- Vacuum Melting & Casting: Melt 304 stainless steel at high temperatures and cast under vacuum to minimize internal defects.
- Shell Removal & Shot Blasting: Remove the refractory mold shell and shot-blast the casting surface to eliminate oxide scale.
- CNC Precision Machining: Drill and tap pin holes; mill mounting surfaces.
- Surface Treatment: Polish, brush, sandblast, or passivate according to customer requirements.
- Corrosion Resistance & Performance Testing: Salt spray testing, load-bearing testing, and opening/closing durability testing.
- Full-dimension and visual inspection.
- Anti-fingerprint packaging and export shipment.
FAQ
We can design hinges with positioning limits, quick-release/detachable structures, or concealed designs based on your requirements.
Yes. Our technical team scans the sample to create a 3D digital model and proceeds to mass production after mold development is complete.
Standard passivated 304 stainless steel hinges can pass a 480-hour salt spray test without showing signs of rust.
Mold development takes 7–15 working days, depending on the hinge's complexity; mass production delivery takes 8–20 days after mold approval.
We support small-batch sampling for new product development and can provide stable, large-scale supplies subsequently.
304 stainless steel is a food-grade material; it is non-toxic and safe, meeting safety standards for food contact and medical hardware.
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