Standard Coil Manufacturing
Seimitsu Electronic provides contract coil manufacturing according to standard procedures
Seimitsu Electronic is a contract manufacturer that contracts with a firm for components or products, in which case it is a turnkey supplier. It is a form of outsourcing.
Custom-Made coil Contract Manufacturing
Seimitsu Electronic provides contract coil manufacturing according to standard procedures
What We do?
R&D Design Coil Development
Seimitsu Electronic provides design coil manufacturing based on the designs or concepts developed by research institutions.
PCB Outsourcing
Seimitsu Electronic provides contract soldering or outsourcing services for any kind of circuit board.
• Sensors & Encoders
Trusted by engineering teams in:
• RF/Wireless
• Power Electronics
• Industrial Automation
• Motion Control
For Engineering Teams That Need Reliable Coil Manufacturing :
Designing motors, actuators, encoders, RF modules or power supplies.
Needing stable, repeatable manufacturing with documented quality.
Tired of capacity or consistency issues with existing suppliers !
Looking to outsource PCB Assembly or coil production to a specialist
Tell us what you're building — we'll manufacture the coils behind it.
Why Choose "Seimitsu Electronic " as Your Coil Manufacturing Partner ?
Tight tolerance winding & coil precision
ISO 9001 : 2015 Certified Manufacturing
ESG-Compliant
20 + years experience
Support from prototype to mass production
We focus on doing one thing well: manufacturing coils, transformers and assemblies that behave exactly as your design expects.
Globally Recognized. Locally Manufactured
We meet the certifications global OEMs demand — from ISO standards to environmental compliance — without compromising speed or cost.
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Production Capability
What we manufacture:
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Custom coils & transformers
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PCB assembly & soldering
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Prototype & mass-production runs
Custom Coil Manufacturing and PCB Assembly Capabilities
Seimitsu Electronic Support OEMs with scalable production and engineering services.
Design & Engineering Support
How we support your project:
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Material & core selection
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Coil dimension optimization
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Prototype testing & adjustments
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Drawing-to-production assistance
Volume & Delivery Capability
We handle:
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Prototype builds
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Small-batch production
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High-volume recurring orders
Partner with us for reliable, high-quality Coil manufacturing !
Please upload your technical drawing or specifications for the most accurate assessment. Our engineering team typically responds within 24 hours.
Prefer a direct Approach?
Mon - Fri : 8:30 am – 5:30 pm
Saturday : 8:30 am – 5:00 pm
Sunday : Closed
Seimitsu Electronic has 20+ years of ISO-certified manufacturing experience in coils, transformers and coil assemblies, serving engineering-driven industries.
Custom-Made coil Contract Manufacturing
R&D Design Coil Development
PCB Outsourcing
Our product
Mon - Fri : 8:30 am – 5:30 pm
Saturday : 8:30 am – 5:00 pm
Sunday : Closed