Chemical Etching Printed Circuit Heat Exchanger Custom Etched Metal Plates

PCHE Overview

Xinhaisen's chemically etched PCHEs represent the next generation of compact heat exchangers, delivering unmatched thermal performance in critical applications. Utilizing our proprietary photochemical etching technology, we create complex micro-channel patterns that achieve superior heat transfer efficiency while maintaining exceptional pressure resistance.

PCHE Features

• Extreme Compactness: Up to 85% smaller and lighter than conventional heat exchangers, saving critical space and weight.

• High Efficiency: The intricate micro-channel design provides a large surface area-to-volume ratio, enabling maximum heat transfer.

• Exceptional Pressure & Temperature Resistance: The monolithic, all-metal diffusion-bonded construction allows operation at pressures over 600 bar and temperatures from cryogenic to 900°C.

• Corrosion & Fouling Resistance: Smooth, etched channels minimize pressure drop and resist fouling. Compatible with corrosive media using suitable alloys.

• Design Flexibility: Channel patterns, sizes, and plate arrangements can be customized for optimal performance in any duty (liquid-liquid, gas-gas, or phase change).

PCHE Specifications

PCHE Applications

• Oil & Gas / Petrochemical: Gas processing (LNG liquefaction & regasification), sulfur recovery, offshore platforms, compact gas compression cooling.

• Power Generation: Supercritical CO2 (sCO2) power cycles, waste heat recovery, hydrogen cooling.

• Aerospace & Defense: Environmental control systems, fuel/oil cooling, advanced thermal management.

• Industrial Processes: High-pressure synthesis reactors, heat recovery steam generators (HRSG), closed-loop cooling.

• Renewable Energy: Hydrogen production (electrolyzer cooling), concentrated solar power (CSP), fuel cells.

Our Advantages

• Precision at Core: Leverages our proven expertise in etching micro-features down to 0.03mm, ensuring perfect channel definition and thermal performance.

• Speed & Agility: Rapid prototyping and flexible production capacity to handle urgent development projects and large-volume orders.

• Vertical Integration: Control over the entire process from high-quality material sourcing to final bonding and testing ensures reliability and traceability.

• Cost-Effective: Our efficient manufacturing and sourcing provide competitive pricing without compromising on the high-end quality PCHEs require.

• Engineering Partnership: We work closely with clients to customize the PCHE design for their specific thermal, mechanical, and material challenges.

FAQ

• Q1: What is the advantage of using etched plates over machined plates for PCHE?
  A: Etching produces burr-free, stress-free, and uniformly smooth channels without heat-affected zones. It also allows for much finer channel geometries (as small as 0.03mm) than traditional machining, and design changes are quick and inexpensive since no hard tooling is required.
• Q2: What materials can you etch for PCHE plates?
  A: We can etch stainless steel (SUS304, SUS316, SUS316L), titanium (Gr1, Gr2), Inconel, Hastelloy, copper, brass, and many other alloys commonly used in high-performance heat exchangers.
• Q3: What is the minimum channel width you can achieve?
  A: We can achieve channel widths as small as 0.03mm and ridge (wall) widths down to 0.015mm, depending on material thickness.
• Q4: What is your typical lead time for PCHE prototype plates?
  A: Prototype samples typically take 3–7 working days after design approval. Mass production lead times are 7–15 working days, with expedited options available for urgent orders.
• Q5: Are your etched plates ready for diffusion bonding?
  A: Yes. Because etching produces clean, burr-free, oxide-minimized surfaces, our plates are ideal for direct diffusion bonding or welding without additional surface preparation.

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