SUNTEC CO.,LTD

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Precision Manufacturing for Ultra-High Vacuum and Semiconductor Fields

Welcome to our booth at SEMICON Europa 2025!

Suntec Co., Ltd. is a precision contract manufacturing company based in Japan (Tsuruoka City, Yamagata Prefecture), specializing in the precision reproduction of critical vacuum and semiconductor components.
Since our establishment in 1988, we have supported OEM manufacturers worldwide by providing CNC machining, machining, welding, and assembly under strict quality and appearance control.

Our Strengths:

Ultra-high vacuum grade machining capability
High-precision tolerance management
Exceptional surface finish

Equipped to machine parts up to φ900mm in diameter
Handles complex geometries with 5-axis machining centers
Serves diverse, high-specification industries including semiconductors, vacuum technology, analytical instruments, and aerospace.

We welcome partnerships with companies seeking a reliable machining partner who pays meticulous attention to detail and delivers rapid response.

🌐 https://yamagata-suntec.co.jp/
📍 Booth: C2244
👤 Contact: Tomoki Sato
📧 [email protected]
📱 +81 235-23-0377

Vacuum related exhaust parts

Material: A6063+A6061(ASTM B221) Dimensions: φ100×200 Aluminum welding, pipe bending, sealing surfaces, chemical polishing Processing of each part - welding - leak testing - chemical polishing ... More Info Less Info





Material: A6063+A6061 (ASTM B221)
Dimensions: φ100×200
Aluminum welding, pipe bending, seal surface machining, chemical polishing

Processing steps for each part: Welding → Leak test → Chemical polishing

Applications: Semiconductors, analytical instruments, aerospace, etc.

For industries utilizing vacuum piping systems



Sputtering-Related Electrode Components

Sputtering-Related Electrode Components Material: A5056 Dimensions: 120×150×300 Surface Treatment: Anodized (Blue) Machining to Blue Anodizing... More Info Less Info





Sputtering-Related Electrode Components

Material: A5056   Dimensions: 120×150×300
Surface Treatment: Anodized (Blue)

Machining to Blue Anodizing


Applications: Semiconductors, Machinery Components, Automotive Parts, Optical Discs, etc.

For fields utilizing sputtering coating



Analytical Instrument Body

Analytical Instrument Body Material: A2017 Dimensions: 100×180×250 Components: Sealing Surface Sphere (Inner)... More Info Less Info





Analytical Instrument Body
Material: A2017
Dimensions: 100×180×250
Components: Sealing Surface
Sphere (Inner)

Application: Analyzing constituent elements and their electronic states across a wide range of sample surfaces, etc.

For fields utilizing X-ray spectroscopic analysis instruments


Inspection Device - Body
Inspection Device - Body Material: A5056 Dimensions: φ180 × 200 Sealing surfaces: All sections... More Info Less Info



Inspection Device - Body
Material: A5056
Dimensions: φ180 × 200
Sealing surfaces: All sections
Application: Analyzing constituent elements and their electronic states across a wide range of sample surfaces
For use in fields employing X-ray spectroscopic analysis equipment


Analytical Instrument Gas Inlet

Analytical Instrument Gas Inlet Material: SUS316L Dimensions: φ50 × 100 Vacuum resistance (10⁻¹⁰ Pa or less) TIG welding Electropolishing Sealing surfaces on all components... More Info Less Info





Analytical Instrument Gas Inlet
Material: SUS316L
Dimensions: φ50 × 100
Vacuum resistance (10⁻¹⁰ Pa or less)
TIG welding
Electropolishing
Sealing surfaces on all components

Processing → Welding → Leak test → Electropolishing for each part

Application: Components for gas inlet and exhaust systems in analytical instruments