Reliable Power Equipment for a Changing World
Leading manufacturer of transformers, substations, and power distribution equipment with 23+ years of excellence. ISO certified, serving clients in 30+ countries.
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Our Products
Complete power equipment solutions for generation, transmission, distribution, and utilization
Dry-Type Transformers
SCB series cast resin dry-type transformers
Oil-Immersed Transformers
S11/S13/S20 series oil-immersed distribution transformers
Special/Isolation/Control Transformers
Isolation transformers, control transformers, rectifier transformers
Amorphous Alloy Transformers
SBH15/SBH21 series amorphous alloy core transformers
Box-Type Substations
ZBW/ZGS series prefabricated substations
Reactors
CKSC/BKSC series dry-type iron core reactors
Cable Branch Boxes & Switching Stations
DFPW series cable branch boxes and switching stations
Ring Main Units (RMU)
Integrated primary and secondary ring main units
High Voltage Switchgear
KYN/XGN series high voltage switchgear
Low Voltage Switchgear
GGD/GCS/GCK/MNS series low voltage switchgear
Industry Solutions
QDTB provides customized power equipment solutions across industries, covering our full range of prefabricated substations, compact substations, and package substations.
Industrial Manufacturing
Reliable prefabricated substation power distribution for factories and industrial parks, meeting high-load continuous production demands.
Urban Infrastructure
Compact substation solutions for commercial complexes, residential areas, and metro stations where space is limited. Fast deployment with minimal footprint.
Renewable Energy
Solar/wind step-up substations integrating transformers and switchgear. Weather-resistant design for remote and harsh environments.
Public Facilities
High-reliability power distribution for hospitals, schools, and data centers with dual power supply and backup options.
Mining & Heavy Industry
Large-capacity oil-immersed transformers and special transformers built for extreme conditions. Dust-proof, moisture-resistant for mining and steel industries.
Overseas EPC Projects
As a professional package substation supplier, we provide one-stop power equipment solutions for global EPC projects, supporting IEC/IEEE standards.
Why Choose QDTB® Transformer
QDTB® Transformer Manufacturing Co., Ltd. is a leading manufacturer of power transformers and electrical equipment in China. With over 23 years of experience, we operate a 100,000㎡ modern production facility equipped with advanced CNC machinery and automated production lines. Our commitment to quality is reflected in our ISO 9001/14001/45001 certifications and 99.8% quality pass rate. We serve customers in over 30 countries across Southeast Asia, Europe, Africa, and South America, providing reliable power equipment solutions for diverse applications.
What Our Clients Say
Trusted by energy companies and EPC contractors worldwide
Michael Chen
Project Director
Green Energy Corp, USA
"QDTB® Transformer delivered 50 transformers for our solar farm project on time and within budget. The quality exceeded our expectations and their technical support was outstanding."
Hans Mueller
Procurement Manager
EuroPower GmbH, Germany
"We have been partnering with QDTB® Transformer for 8 years. Their product consistency and reliability make them our preferred supplier for prefabricated substations."
Ahmed Al-Rashid
Chief Engineer
Gulf Energy Solutions, UAE
"The custom-designed transformer for our wind farm performed flawlessly in extreme conditions. QDTB® Transformer engineering team provided excellent technical guidance throughout."
Frequently Asked Questions
Common questions from international buyers about our products, services, and capabilities
What is the typical lead time for transformer orders?
Standard transformers: 30-45 days. Custom or large-capacity units: 60-90 days. This is significantly faster than Western manufacturers who typically require 18-24 months. Rush orders can be accommodated for urgent projects.
Do you provide OEM/ODM services?
Yes. We offer full OEM/ODM capabilities including custom design, private labeling, and specification modifications to meet your specific project requirements and local standards.
What certifications do your products hold?
Our products are ISO 9001/14001/45001 certified, CE marked, and designed to meet IEC, IEEE, and GB standards. We are also preparing for KEMA and TÜV certifications for specific product lines.
What is your minimum order quantity?
We accept orders starting from 1 unit for standard products. For custom-designed equipment, please contact our sales team for MOQ details based on specifications.
Do you provide after-sales technical support?
Yes. We provide comprehensive after-sales support including installation guidance, commissioning assistance, operator training, and 24/7 remote technical support. On-site service is available globally.
Can you customize products for specific environments?
Absolutely. We design equipment for extreme conditions including high altitude, high temperature, high humidity, coastal/corrosive environments, and seismic zones. Share your requirements and we will engineer a solution.
What payment terms do you accept?
We accept T/T (bank transfer), L/C (letter of credit), and other major international payment methods. Typical terms are 30% deposit with 70% before shipment. We can discuss flexible terms for long-term partnerships.
Do you provide technical documentation in English?
Yes. All products come with comprehensive English documentation including user manuals, technical specifications, test reports, and installation guides. We also provide CE and other certification documents as needed.
Ready to Power Your Project?
Get a free consultation and quote from our engineering team. 30-45 day delivery worldwide.