Services · Pilot Plants
Service · Scale-Up Engineering

Pilot Plants

De-Risk Before Capital Commit

Kappes, Cassiday & Associates strives to meet the needs of operations of all sizes throughout their life of mine. KCA provides clients with reliable pilot plants so when the time comes for them to scale up their operation, they are prepared to handle the ore in the most effective manner. From the Saudi desert to Bolivian mining country to the Nevada heap leach belt — KCA pilots produce real gold from real ore.

Many
Pilot programs
Modular skids
Pilot equipment
Real gold
Output

Al Hajar Pilot Heap — Saudi Arabia

The pilot heap leach at Al Hajar, Saudi Arabia, was designed, constructed, and operated by KCA personnel under contract to government organizations. The yellow container is a KCA Model 15 ADR plant fully equipped to produce gold bars on site — a complete pilot-scale recovery train in a shipping container.

Boulder Creek Pilot — Nevada (Dee Mine)

The Boulder Creek 3,000-tonne test heap leach is one of several that KCA has conducted for clients in the western U.S. This project became the very successful Dee Mine — proving the scale-up path from pilot to production.

Flotation Pilot Plant

KCA built a 50 kg per hour flotation pilot plant, complete with thickeners for drying of concentrate and tailings. Originally built for KCA's own use, we can build similar plants to client specifications. Comes with the typical flowsheet for the plant.

Other Pilot Facilities

Other typical pilot facilities constructed by KCA include:
• A container-mounted column-cell pilot flotation plant for a major mining company to use in testing a copper ore in South Africa
• Two one tonne/day cyanide CIP pilot plants, complete with ore crushing and grinding, and carbon stripping — now located in Bolivia and Peru

Why Pilot

Pilot operation de-risks scale-up by validating recoveries, throughput, reagent consumption, and operating procedures before full-scale capital commitment. Programs run from weeks to multiple ore seasons depending on data needs.

Project Gallery

From our portfolio.

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

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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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