Caldera Engineering

What Caldera Engineering does

Caldera Engineering, L.C. is a privately held industrial equipment manufacturer founded in 1997 in Provo, Utah, specializing in severe-service flow control and pressure letdown equipment for the High Pressure Acid Leach (HPAL) and Pressure Oxidation (POX) mineral processing industries. The company designs and manufactures ceramic-trimmed control valves, integrated letdown systems, blast tubes, choke tubes, impingement blocks, oxygen spargers, oxygen isolation valves, ceramic-lined piping, in-line chokes, and ram-style valves using proprietary ceramic formulations (silicon carbide, zirconia) and specialty alloys (titanium, super duplex stainless, nickel alloys). Caldera's core technical differentiator is its proprietary CalPhlash® flow modeling software, which uses Homogeneous Equilibrium Model (HEM) and Method of Characteristics (MOC) algorithms to predict shockwave behavior in flashing supersonic flow — a capability not addressed by standard ISA/IEC procedures.

Caldera claims to serve approximately 85% of all HPAL and POX plants currently in operation worldwide, extracting nickel, cobalt, gold, copper, molybdenum, and uranium from ore bodies. Its engineering approach combines thermodynamics, fluid dynamics, heat transfer, materials science, CFD modeling, and FEA analysis, with 30% of employees holding engineering degrees. The company maintains dedicated project managers, offers free site visits and on-site engineering support, and provides engineer response within 24 hours.

Caldera's business model is quote-based custom engineering and manufacturing for enterprise mining customers, with multi-year contracts and no publicly disclosed pricing. Distribution is entirely direct via dedicated project management, supported by manufacturing facilities in Provo, Utah (80,000 sq ft) and Wangara, Western Australia, serving global markets. The company is ISO 9001:2015 certified and has experience with European Pressure Equipment Directive (PED) Module H compliance. Secondary verticals include chemical and fertilizer processing, food processing, oil and gas, and power generation, though HPAL/POX remains the dominant focus.

Name

Caldera Engineering

Legal name

Caldera Engineering, L.C.

Website

https://calderaengineering.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

Caldera Engineering designs and manufactures ceramic-trimmed severe-service control valves, integrated letdown systems, and oxygen injection equipment for High Pressure Acid Leach (HPAL) and Pressure Oxidation (POX) mineral processing plants, serving approximately 85% of global HPAL/POX operations from facilities in Utah and Western Australia.

Ownership category

akta.pro rank

Headquarters

HQ city

Provo

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure

Revenue model

1. Custom Engineered Equipment Manufacturing: Caldera designs and manufactures custom flow control and pressure letdown equipment to meet specific customer requirements. Products include ceramic-trimmed slurry control valves, letdown systems, blast tubes, choke tubes, impingement blocks, oxygen spargers, oxygen isolation valves, ceramic-lined piping, in-line chokes, and ram-style valves. Each system is custom designed for its specific application.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Caldera Engineering designs and manufactures custom-engineered severe service flow control and pressure letdown equipment for harsh mineral processing environments. Products include ceramic-trimmed slurry control valves, integrated letdown systems (valves plus blast tubes, choke tubes, and impingement blocks), bimetallic and ceramic-lined oxygen spargers, oxygen isolation valves, ceramic-lined piping, in-line chokes, and ram-style valves used in HPAL and POX hydrometallurgical plants processing nickel, cobalt, gold, copper, molybdenum, and uranium. Each system is custom designed against the specific process parameters of the customer's facility.

Product overview

Caldera Engineering is an industrial equipment manufacturer specializing in severe service flow control and pressure letdown solutions for harsh environments. The company offers a portfolio of integrated products centered on ceramic-trimmed valves and letdown systems. Core offerings include: Letdown Systems (fully integrated assemblies combining ceramic-trimmed valves, mounting flanges, blast tubes, and impingement blocks); Ceramic-trimmed Valves with sub-components (Valve Plugs and Valve Seats); Ceramic-lined Piping; Oxygen Spargers and Oxygen Isolation Valves; In-line Chokes; Ram-Style Valves; and Pilot Plant Equipment. These products utilize advanced ceramics (silicon carbide, zirconia) and specialty metals (titanium, super duplex stainless) to withstand erosive and corrosive conditions in HPAL and POX mineral processing applications. Caldera engineers and manufactures from facilities in Provo, Utah and Wangara, Western Australia.

Differentiator

Problem solved

Functional benefit

Products and services

• Letdown Systems Integrated pressure letdown systems used to safely dissipate the energy of high-pressure, high-temperature slurry as it flashes down to lower pressure in hydrometallurgical gold, nickel, and copper extraction plants; engineered for HPAL and POX service.
• Ceramic-trimmed Severe Service Valves Severe service control valves with ceramic-lined components (silicon carbide and zirconia ceramics) in metal housings, designed to withstand erosive and corrosive slurries in mining and mineral processing plants; sizes 1"-18" (DN 25-450), ASME Class 150-900.
• Ceramic-lined Piping Titanium or super duplex piping lined with monolithic ceramic cylinders that significantly increase pipe service life in erosive slurry flows and vent flows carrying entrained solids, for use in mineral processing and chemical plants.
• Oxygen Spargers Oxygen injection systems for pressure oxidation autoclaves (POX) in bimetallic or ceramic-lined configurations that prevent metallic fires; bimetallic designs use a duplex stainless or high-nickel alloy inner sleeve encased in a corrosion-resistant titanium outer tube with PTFE insulation, and ceramic-lined versions operate above 15 m/s.
• Oxygen Isolation Valves Angle-type isolation valves designed for high-purity gaseous oxygen service in POX autoclave circuits; feature solid sintered silicon carbide sealing surfaces and a linear motion plug design that operates safely under differential pressure.
• In-line Chokes Ceramic-lined pressure reduction equipment for slurry transport pipelines, custom designed in sizes 6"-30" (DN 150-750) and pressure classes 150-1500 using silicon carbide ceramics to dissipate energy in erosive slurry service.
• Ram-Style Valves Specialized piston-style plug valves for critical water injection and drainage service in slurry and scaling environments; the plug seals directly at the tip against a protective sleeve within the Tee, allowing modulating service without a separate modulating valve.
• Pilot Plant Equipment Custom engineered valves and letdown equipment for pilot plants and test facilities used to validate erosive and corrosive process conditions before full-scale plant construction; valve sizes typically 1/2"-2" (DN 15-50).

Quantifiable outcome

• Serves 85% of all HPAL and POX plants currently in operation
• +3 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Flowserve: Global provider of pumps, valves, seals, and automation for power, oil & gas, chemical, and mining applications. Comparable in producing industrial valves for severe service, though it serves a much broader set of end markets than Caldera's HPAL/POX niche.
• Metso: Global leader in mining and metals processing equipment, including valves, pumps, and process equipment used in mineral processing plants such as HPAL/POX operations. Comparable as a broad supplier of severe-service flow control equipment serving the same mining customer base, though with a vastly larger portfolio and scale than Caldera.
• ITT Inc. Diversified manufacturer of highly engineered components including industrial process equipment for mining, energy, and chemical markets. Comparable in providing engineered fluid handling solutions for severe-service industrial applications, though serving a wider range of end markets.
• Weir Group: Mining-focused engineered solutions provider with strong positions in slurry pumps, valves, and processing equipment. Highly comparable given its focus on severe-service flow equipment for mineral processing, overlapping with Caldera's HPAL/POX customer base.
• Pentair: Provider of water treatment and fluid handling solutions including industrial valves and process equipment. Comparable as a supplier of flow control equipment for industrial and mining applications, though Pentair's portfolio is more weighted toward water and building services than mineral processing.
• KSB SE & Co. KGaA: Global supplier of pumps, valves, and related systems for mining, energy, water, and industrial applications. Comparable as a manufacturer of industrial valves serving mineral processing customers, though with a much broader product portfolio and global footprint.
• FLSmidth: Supplier of process equipment and EPC services for the mining and minerals industry, including equipment used in hydrometallurgical plants. Comparable as a vendor of severe-service equipment for HPAL/POX and other mineral processing circuits, though with a broader portfolio spanning crushing, milling, and pyroprocessing.

Direct peers

• Velan: Manufacturer of industrial valves including severe-service and high-pressure designs for power, mining, oil & gas, and chemical applications. Comparable in providing engineered valve solutions for harsh process environments involving high pressures, temperatures, and corrosive media.
• Mogas Industries: Specialty manufacturer of severe-service ball, needle, and gate valves primarily for mining, power, and oil & gas applications. Closely comparable to Caldera in targeting severe-service applications with custom-engineered valve solutions for hostile process environments.
• CIRCOR International: Manufacturer of severe-service and general-purpose valves for power, oil & gas, mining, and process industries. Comparable in targeting extreme-service applications with engineered flow control solutions, including high-pressure and corrosive service valves relevant to Caldera's HPAL/POX end markets.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Caldera Engineering