Chemical Etching 1800mm Size Titanium Etching Printed Circuit Heat Exchanger for Aerospace

The Printed Circuit Heat Exchanger (PCHE) utilizes diffusion-bonded corrosion-resistant plates

with microchannel circuits to achieve high thermal efficiency and compactness. Designed for extreme

pressures and temperatures, it serves oil/gas, energy, and chemical industries, offering durability and

space-saving advantages through its welded, plate-type architecture.

Specifications of Titanium Etching Printed Circuit Heat Exchanger :

Advantages of Etching in PCHE Manufacturing:

1. Precision Microchannel Fabrication: Enables ultra-fine, complex flow paths (<0.5mm) for maximized heat transfer efficiency and uniform fluid distribution.
2. Design Flexibility: Supports customizable channel geometries (zigzag, wavy) tailored to thermal/fluid dynamics requirements.
3. Material Integrity Preservation: Stress-free etching avoids mechanical deformation, maintaining plate strength for high-pressure operations (up to 600 bar).
4. Scalability & Consistency: Photochemical processes ensure repeatable, large-scale production of corrosion-resistant plates (e.g., stainless steel, alloys)

The production process of chemically etching PCHE:

1) Material selection (stainless steel/titanium);

2) Surface cleaning;

3) Photoresist coating and UV masking to define flow channel patterns;

4) Exposing and Developing;

5) Chemical etching to dissolve exposed areas;

6) Post-processing (resist removal, residue neutralization);

7) Quality inspection.

Precise control of etching parameters (time, temperature, concentration) ensures uniform channel geometry for optimized gas distribution, conductivity, and corrosion resistance while maintaining structural integrity. This method supports scalable, cost-efficient mass production.

Xinhaisen can photo etch custom different shapes PCHE / Bipolar Plate, belows are some bipolar plates we did before for reference:

How to etching custom PCHE?

1. Please send us your design.
We accept the following file formats:DWG, DXF, PDF, Step, Gerber, IGES, CorelDraw and Adobe Illustrator

2. Samples making lead time:3-10days

3. Express:By DHL, FedEx, TNT, around 3-7days.

For over 13 years Xinhaisen has pioneered developments in photochemical etching, achieving standards admired by the industry and appreciated by a global customer base from a wide range of high-tech engineering markets.

Since found in 2012, in affiliating with our customers we have pioneered many new production techniques and methodologies in order to better serve their needs. It is these techniques that have advanced our capabilities further, enabling us to take what was once considered art and turn it into a science.

Now, we became China's leading photochemical etching specialist, with also the capacity of offering stamping and laser-cutting service. Our products include etching bipolar plates for fuel cell, speaker grills,  micro meshes&filters, tea&coffee infusers, shims&gaskets, Optical encoderdisk&strip, EMI/RFI shielding, Leadframes, connectors&contacts, printingstencils&foils and metal crafts.

Quality and service is our mission, Xinhaisen is committed to pursuing the highest standards of environmental performance. Responsibility for sustainability resides with all employees. The company has achieved ISO 14001 and IS0 9001 and IATF 16949 and is committed to maintaining that standard. With a fast response, high quality, best service and fair price, we have gained high reputation from our customers all over the world.