Services · Metallurgical Testwork
Service · Since 1972

Metallurgical Testwork

Laboratory Testing
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KCA's in-house metallurgical laboratory completes process-development testwork on 100+ projects every year. We've set the industry bar for gold and silver heap leach testing — and our work is based on real solutions developed from real mines, not theory. For dedicated assay-lab services — geochemical and metallurgical analytical work — see our in-house lab Florin Analytical Services.

100+
Lab projects/yr
30+
Countries received
53
Years operating

Capabilities

Column leach, bottle roll, BRT, CIL, CIP, HPGR, gravity concentration, Merrill-Crowe, ADR, cyanide destruction, and tailings disposition. Sample sizes range from 250 g bench tests to multi-tonne column campaigns.

Approach

Every testwork campaign starts with a metallurgical interview — your objectives, ore geology, capital constraints, and target product. We design the test matrix to answer your questions, not run a template. Results come with engineering interpretation, not just data dumps.

Integration with engineering

Because the same KCA team carries through to FEED, EPCM, and commissioning, every assumption in the testwork report is traceable to flowsheet decisions later. This integration is our biggest advantage — the testwork is engineered, not just measured.

500+Engineering Projects
74Modular Plants Delivered
17EPCM Contracts
30+Countries Worked
1972Founded
Recent KCA Projects

See this capability in action.

Selected recent projects where KCA delivered this service. All from our portfolio of 500+ engineering projects.

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Common Questions

Frequently asked.

How long does a typical KCA testwork campaign take?
Bench-scale programs take 4–8 weeks; column leach campaigns 3–6 months depending on heap height and ore character; full bankable feasibility-level testwork can span 9–18 months. Every campaign begins with a metallurgical interview to set the scope, schedule, and budget against your project milestones.
Can KCA take a project from testwork through commissioning?
Yes — this is KCA's defining capability. Most EPCM firms outsource testwork; KCA self-performs the lab, engineering, and (in EPCM mode) construction management. The flowsheet you sign off on is designed by the same team that builds the plant. One handoff. Fewer surprises.
Where does KCA work geographically?
KCA's Reno, Nevada headquarters serves projects in the Americas, Asia-Pacific, and Africa. Our Chihuahua, Mexico affiliate (Kappes Cassiday del Norte) supports operations across Mexico and Central America. Our Perth, Western Australia affiliate (KCAA) serves Asia-Pacific. Over 500 projects across six continents since 1972.
What types of ore does KCA test and engineer?
Primary expertise is gold and silver — both heap leach and milling/agitated cyanide processes. We also work on copper, lithium, and base metals. The KCA lab routinely runs HPGR, gravity, flotation, cyanide, and Merrill-Crowe campaigns across all commodity classes.
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Whether you’re at scoping stage or ready to break ground, KCA has the lab capacity, engineering bench, and EPCM experience to deliver.

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