A manufacturing partner that delivers world-class quality with precision surface treatment of Ra0.02μm and cleanroom-compatible technology.
Toyoh Chemical Co., Ltd. provides high-quality and high-precision processing services, specializing in metal surface treatment, focusing on electro-polishing, chemical polishing, and pickling. With smooth finishes of Ra=0.02μm and the ability to handle complex-shaped components, the company has gained trust in a wide range of fields, including semiconductor manufacturing equipment, medical devices, and food-related equipment. Additionally, the company offers consistent in-house support for precision cleaning compatible with clean rooms, vacuum packaging, and assembly. Through foreign matter management in environments ranging from Class 100 to 10,000, it can accommodate products that require high cleanliness. Furthermore, by performing everything from cutting and finishing to inspection and packaging in a consistent manner, Toyoh Chemical achieves short delivery times, high quality, and cost optimization. The company also develops its own metal surface treatment agents (degreasers, electrolytic solutions, rust inhibitors, etc.), surface treatment equipment, wastewater treatment facilities, and automatic inspection devices, providing optimal technology and equipment tailored to each customer's challenges. Leveraging over 60 years of experience and technical expertise, Toyoh Chemical contributes to solving challenges in manufacturing and enhancing product value.
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basic information
【Supported Materials】 Compatible with a variety of metals such as stainless steel (SUS304/316/316L), titanium, copper alloys, aluminum, and iron. 【Main Processing Details】 ● Electrolytic Polishing: Ultra-smooth finish with Ra=0.02μm, suitable for complex shapes and internal surface treatment. ● Chemical Polishing: Uniform surface dissolution treatment using chemical solutions. ● Pickling Treatment: Ideal for removing oxide films and dirt, as well as treating welded areas. 【Precision Cleaning】 Conducted in four steps: alkaline degreasing, ultrasonic cleaning, ultra-pure water rinsing, and clean drying. Clean room compatible (Class 10,000/1,000/100). Ultra-pure water: Specific resistivity 18.2MΩ·cm (25°C), TOC ≤1ppb, particulate <1 particle/ml (≥0.1μm). 【Integrated Production System】 Completes everything in-house from design and machining to surface treatment, precision cleaning, vacuum packaging, and assembly. Balances short delivery times with stable quality. 【Equipment and Facility Development】 Fully custom design possible for surface treatment equipment, wastewater treatment equipment, and automatic inspection/marking devices. Automatic transport and image inspection functions can also be implemented. 【Quality Assurance】 ISO9001/ISO14001 certification obtained. Thorough inspection of all items, foreign matter measurement, and traceability management.
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Applications/Examples of results
The surface treatment technology of Toyo Rika Co., Ltd. is utilized in a wide range of fields where precision and cleanliness are required. 【Semiconductor-related】 Electrolytic polishing with Ra=0.02μm and clean washing for wafer transport components, vacuum chamber parts, and process piping are highly regarded. The company also addresses particle management and metal contamination measures, with numerous delivery records to semiconductor manufacturing equipment manufacturers both domestically and internationally. 【Medical Devices】 Electrolytic polishing and precision cleaning are provided for stainless steel endoscope parts, surgical instruments, and fixtures for implants. In addition to improving biocompatibility and corrosion resistance, thorough removal of fine particles and organic matter is ensured. 【Food and Beverage Equipment】 Chemical polishing and acid cleaning processes are applied to tank, piping, and valve components. The surface treatment, which ensures high safety and cleanliness, meets the requirements of food sanitation laws. 【Precision Machinery and Industrial Equipment】 Reliable processing is ensured through uniform treatment and complete inspection for complex-shaped and small parts. The company can handle everything from vacuum packaging to assembly. 【Equipment Installation Achievements】 Surface treatment equipment and automatic inspection devices have been introduced mainly in large domestic manufacturing companies, contributing to quality stabilization and labor reduction. The company provides comprehensive support from equipment design to installation and maintenance.
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Company information
Toyohashi Chemical Co., Ltd. is a comprehensive technology company that consistently responds to a wide range of needs, from contract processing to the manufacturing of surface treatment agents and processing equipment, the development of automatic inspection devices, and even technical consulting, as a leading company in metal surface treatment. We have established a consistent production system utilizing precise electro-polishing and cleaning technologies, vacuum packaging and assembly in clean rooms, and advanced processing techniques. We have gained high trust in fields where quality is essential, such as semiconductors, medical devices, and food-related equipment. As a partner that responds to all surface treatment challenges with technology and flexible adaptability, we continue to support our customers' manufacturing endeavors.