Acid engraving, also known as photochemical machining (PCM) or chemical etching, has transcended its origins as a decorative art form to become a cornerstone of high-precision industrial manufacturing. In 2024, the global demand for acid-engraved components is being driven by the relentless pursuit of miniaturization in electronics and the need for lightweight, high-strength parts in aerospace and medical sectors.
Unlike traditional CNC machining or laser cutting, acid engraving offers a "burr-free" and "stress-free" manufacturing process. This is critical when dealing with ultra-thin foils or complex geometries where mechanical force would deform the material. Our factory utilizes advanced digital tooling to ensure that every micron of material is etched with mathematical certainty, providing Information Gain to procurement officers seeking reliable technical data over marketing fluff.
Hongrui is one of the top rapid prototyping companies in China. Dongguan Hongrui Model Technology Co., Ltd. was established in 2019 with a registered capital of 5 million yuan and currently employs over 100 people. We specialize in low-cost OEM CNC machining parts manufacturing, catering to automotive, medical, electronic, aerospace, machinery, communications, and smart device industries.
In 2020, we passed the quality system audit by SGS, and in 2023, we obtained the "GB/119001-2016 ISO 9001:2015" certificate. Our commitment to ISO standards guarantees product quality and customer satisfaction through meticulous management details.
Development of ultra-narrow channels (under 50 microns) for next-generation medical diagnostic chips and hydrogen fuel cell plates.
Implementing machine vision to detect etching depth variances in real-time, ensuring 100% compliance with aerospace tolerances.
Transitioning to closed-loop chemical systems to reduce environmental impact and lower long-term procurement costs for global partners.
Our facility houses 50 CNC machine tools, including vertical, horizontal, 3-axis, 4-axis, and 5-axis configurations. This allows us to significantly shorten delivery times while maintaining an accuracy of ±0.005 mm.
We provide end-to-end supply chain integration, from raw material sourcing in China's industrial heartland to final DDP delivery at your doorstep.
Fully REACH and RoHS compliant. Our SGS-audited environmental systems ensure your components meet all international regulatory hurdles.
Multi-lingual engineering support teams (English/Chinese) to bridge the gap between design intent and manufacturing reality.
Acid engraving (chemical etching) does not create a heat-affected zone (HAZ). This means the material's temper and internal structure remain unchanged, which is vital for spring components or magnetic shields. Furthermore, etching processes all apertures simultaneously, making it more cost-effective for complex patterns.
We utilize titration-controlled chemical baths and conveyorized etching lines. By constantly monitoring the Baumé levels and temperature of the etchant, we maintain dimensional consistency within ±10% of the material thickness.
For prototyping, we can deliver within 3-5 working days. For mass production, typical lead times range from 2-4 weeks, depending on the complexity of the secondary finishing (like anodizing or assembly) required.
Hongrui Model
