# **Custom Metal Casting Services: Die, Investment & Sand** ## ISO 9001 Certified Foundries for Aluminum, Steel, and Zinc Casting. From rapid prototypes to high-volume production. ## **Custom Metal Casting Services for Prototypes and Production** Source high-precision cast parts without the supply chain headache. Trustbridge manages a network of vetted foundries offering High-Pressure Die Casting (HPDC), Investment Casting, and Sand Casting. We handle the tooling, pouring, and post-process CNC machining. From investment casting to sand and die casting, we support diverse industries with high-strength, complex geometries — all backed by engineering support, global sourcing flexibility, and a single point of contact for quality assurance. ## Standard Casting Tolerances & Specifications | | | | | | --- | --- | --- | --- | | Process | Typical Tolerance | Surface Finish (Ra) | Best For... | | Die Casting | ±0.002" | 32-63 | High Volume, Thin Walls | | Investment | ±0.005" | 63-125 | Complex Detail, Hard Alloys | | Sand Casting | ±0.030" | 250-500 | Large Parts, Low Tooling Cost | ## **Supported Casting Alloys** We support a wide range of ferrous and non-ferrous alloys, including high-performance and specialty metals: - **Aluminum Alloys:** A356, A319, 6061, 7075, ADC12 - **Steel Alloys:** Carbon steels, alloy steels, stainless steels (304, 316, 17-4) - **Iron Alloys:** Gray iron, ductile iron - **Copper Alloys:** Brass, bronze, beryllium copper - **Nickel-Based Alloys:** Inconel, Monel - **Titanium Alloys:** CP titanium, Ti-6Al-4V - **Zinc Alloys:** Zamak 3, Zamak 5, ZA-8 Our team helps optimize alloy selection for strength, thermal properties, corrosion resistance, and cost efficiency. ## Technologies in Our Metal Casting Network Trustbridge connects you to a global bench of metal casting capabilities: - **Precision Investment Casting (Lost Wax):** For complex geometries and aerospace-grade alloys. Capable of casting Stainless Steel (304, 316) and Titanium with near-net shape accuracy. - **Sand Casting & Large Format Parts:** Cost-effective for low volumes and large heavy-machinery components. Available in Gray Iron, Ductile Iron, and Bronze. - **High-Pressure Die Casting (HPDC):** Ideal for high-volume production (1,000+ units). We specialize in Aluminum Die Casting (A380, A356) and Zinc parts with tight tolerances and excellent surface finishes. - **Centrifugal Casting:** High-integrity cylindrical parts (e.g., pipes, bushings). - **Permanent Mold Casting (Gravity Die):** Good surface finish and repeatability. - **Shell Mold Casting:** Combines detail of investment casting with higher production speed. - **3D Printed Pattern Casting:** Short-run casting with rapid tooling from printed patterns. We pair your needs with the right process based on geometry, quantity, and lead time. ## **Industries We Serve** ### Metal casting is essential to a wide range of critical industries, including: - Aerospace & Defense - Automotive & EV - Industrial Equipment & Machinery - Energy (Oil, Gas, Power) - Construction & Infrastructure - Medical Devices & Surgical Equipment - Marine, Rail, and Heavy Transport Our suppliers meet rigorous quality and material traceability standards. ## Our Global Supplier Network We provide streamlined access to foundries and casting partners across the globe: - **250+ casting facilities** across North America, Asia, and Europe. - **Certifications:** ISO 9001, IATF 16949, AS9100, ISO 13485, ITAR. - **Support for low-volume, mid-run, and high-volume casting.** - **Post-processing capabilities:** Heat treating, machining, surface finishing, NDT. - **In-house QA team and supplier performance tracking.** We qualify each partner for casting expertise, alloy range, repeatability, and communication quality. ## **Case Study Highlight** > **Customer:** Industrial Pump Manufacturer > **Service:** Sand Casting + Machining > **Challenge:** Needed 100 cast housings with tight dimensional tolerances and 4-week turnaround > **Solution:** Trustbridge matched them with a U.S.-based sand casting foundry with in-house CNC > **Result:** Parts delivered in 3.5 weeks, fully machined and pressure tested > > > “The ability to consolidate casting and machining through a single partner saved us weeks. Trustbridge delivered both speed and accountability.” > — _Director of Manufacturing, Fluid Systems Company_ ### Frequently Asked Questions ##### **What’s the difference between investment, sand, and die casting?** - Investment Casting: Best for detailed parts, lower volumes. - Sand Casting: Lower tooling cost, flexible geometry. - Die Casting: Best for high-volume runs, especially aluminum and zinc. ##### What post-processing services do you offer? We offer machining, heat treatment, polishing, anodizing, painting, powder coating, and NDT testing. ##### Can I use 3D-printed patterns for short-run casting? Yes — many of our partners support rapid pattern generation using SLA, FDM, or binder jet printing. ##### Do you support cast + machined parts in one job? Yes — we can bundle casting and post-processing into a single quote and project workflow. ##### Can I get help choosing the right casting process or alloy? Absolutely. Our engineering team provides hands-on guidance at every stage. ## **Why Work With Trustbridge?** > **Best-Fit Supplier Matching — Without the Hassle** > We combine AI + human expertise to match your project with the right supplier the first time — based on process, material, geography, certifications, and lead time. > > **Direct Supplier Access with Engineering Oversight** > You work directly with the manufacturer — no black box. Our team ensures every manufacturing request is thoughtfully matched to a supplier aligned with your goals. > > **Transparent Quality, Tailored to Your Needs** > From high-spec aerospace shops to agile local job shops, you choose the supplier that matches your budget and quality requirements — no guessing, no blind handoffs. > > **No Middleman Markups — Save 30–50%** > Our lean model avoids redundant layers. You pay the supplier, not a broker. We add value through smart matching and light-touch oversight — not costly overhead. > > **Global Network, Local Confidence** > Work with top suppliers across North America, Europe, or Asia — all vetted and performance-tracked. Get the reach you need with the transparency you deserve. > > **Optional Payment Streamlining** > Only want a single payee added to your supplier list? We can handle payments and provide additional consultative support as needed. ## **Ready to Start Your Metal Casting Project?** Let our team help you scope the right process, material, and supplier for your next casting project.