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Trustbridge

  • Custom Metal Casting Services: Die, Investment & Sand 

    ISO 9001 Certified Foundries for Aluminum, Steel, and Zinc Casting. From rapid prototypes to high-volume production. 

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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.

Tolerances depend on casting method, alloy, and part geometry

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 

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 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.

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Materials We Support in Metal Casting
Technologies in Our Metal Casting Network

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.

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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.

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Metal casting is essential to a wide range of critical industries
250+ casting facilities across North America, Asia, and Europe

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.

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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

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Industrial Pump Manufacturer

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 the 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. 

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Ready to Start Your Metal Casting Project?

Let our team help you scope the right process, material, and supplier for your next casting project.

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