30+ Years of Expertise in Transformer Manufacturing
Custom Power Transformer
We specialize in designing and manufacturing custom power transformers that meet your exact specifications, and would like to work closely with you to deliver transformers precisely tailored to your applications, whether for industrial machinery, renewable energy systems, mining equipment, amusement rides, or power distribution networks.
We customize electrical parameters including voltage ratings from 0.4kV to 35kV, power capacity from 50kVA to 10,000kVA, frequency options of 50Hz or 60Hz, and specific impedance values to match your system perfectly. Beyond electrical design, we adapt mechanical configurations such as terminal arrangements, bushing types, mounting styles, and enclosure ratings from IP00 to IP55 to ensure seamless integration with your existing infrastructure.
Our customization extends to insulation and cooling systems as well. You can select from oil-immersed, dry-type, or cast resin insulation based on your environmental and safety needs, while cooling methods including AN, AF, ONAN, and ONAF are optimized for your specific operating conditions. All our custom transformers comply with international standards such as IEC, ANSI, and CE, giving you confidence in quality and market readiness worldwide.
With years of manufacturing expertise and strict quality control at every stage, Sinotech offers flexible production capabilities for both small custom orders and large-scale industrial projects. Contact us today to discuss your custom transformer requirements and discover how we can power your success.
Our Products
About Sinotech Electric
Sinotech is a professional transformer manufacturer and global supplier with over 30 years of combined expertise in the power electrical industry. With large-scale production facilities covering over 128,000 square meters and a workforce of 500+ skilled engineers and technicians, we deliver reliable, high-performance transformer solutions to clients across the globe.
Our product portfolio covers the full spectrum of power transformation needs, including oil-immersed distribution transformers, dry-type transformers, pad-mounted transformers, European-style and American-style transformers, compact substation units, underground transformers, new energy prefabricated substations, and EV charging stations.
Every product is manufactured in strict compliance with international IEC standards and national advanced electrical standards, ensuring consistent quality and global market readiness.
Why Choose Sinotech As Your Transformer Manufacturer
Sinotech proudly serves a diverse range of industries, including power grid infrastructure, urban construction, public transportation, renewable energy, and industrial manufacturing. Our transformers have been widely adopted by major power groups including State Grid Corporation of China and China Southern Power Grid, and our products are exported to markets across Africa, Southeast Asia, Europe, and beyond.
Whether you need a standard unit or a fully customized transformer tailored to your specific voltage, capacity, and environmental requirements, our engineering team is ready to support you from specification to delivery. We combine advanced manufacturing technology, rigorous quality control, and responsive after-sales service to ensure your complete satisfaction.
Exported Countries
Sinotech is your trusted global partner for transformer procurement and export. We have extensive experience serving international clients across Asia, Africa, Europe, the Middle East, and Latin America, with a proven track record of on-time delivery and consistent product quality.
We are well-versed in the technical and regulatory requirements of different markets. Our transformers comply with IEC, ANSI, AS/NZS, and CE standards, and we can provide additional certifications upon request to meet local grid and safety regulations. Whether you are importing a single unit or placing a large-volume order, Sinotech delivers the same level of professionalism, and after-sales support.
Global Case
S11-1000/0.4/33 Oil Immersed Transformers to Sri Lanka
S11-5000/38.5-10.5 Oil Transformers For Hydropower Project
S11-3150/33-0.4 Dyn11 ±2*2.5% Transformers to Zimbabwe
SZ11-10000/35 Oil Filled Transformer For 35kV Substation Project
SCB18 – 2500/10 Dry Type Transformers For Coal Factory
SCB11 – 1250/10 Dry Type For Water Conservancy
SCB13 – 800/10 Dry Transformers to Vietnam
SCB10 – 3150/10 Dry Transformers to Russia
YBW-50/10 Pad Mount Transformer For Street Lighting Project
YBW-50/10 Transformer For 10kV Residential Area Power Distribution
YBW-800/10 Substation Transformers For Hospital Power Upgrade Project
YBW-1600/10 Prefabricated Transformer For Charger Station Project
High Voltage Transformer in Argentina
High Voltage Transformer in Venezuela
High Voltage Transformer in Jordan
High Voltage Transformer in Angola
Our Product Range
Power Transformer
Sinotech supplies oil-immersed and dry-type power transformers from 50kVA to 10,000kVA, covering 0.4kV to 35kV voltage levels for industrial, commercial, data centers, construction and renewable energy applications worldwide.
Power Substation
We provide compact and prefabricated power substations, including European-style, American-style, and new energy variants, designed for fast deployment, reliable performance, and seamless grid integration across diverse environments.
Switchgear
Sinotech offers high and low voltage switchgear assemblies built to IEC/ANSI/CE standards, delivering safe, efficient power distribution and protection for industrial plants, infrastructure projects, and utility grid systems globally.
Charging Station
Our EV charging station transformers and power units support AC and DC fast-charging infrastructure, purpose-built for commercial charging networks, parking facilities, and large-scale electric vehicle deployment projects.
Global Clients
