custom edition
Years of experience
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customized project
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design patent
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global customers
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Having over ten years of professional knowledge in customized transformer engineering and manufacturing
Successfully delivered customized solutions in multiple industries worldwide
Innovative designs protected by utility model patents and certifications
Trusted by customers across continents, providing reliable power solutions
Design according to your precise specifications
At Guangzhou Junfa Electrical Equipment Co., Ltd., we understand that standard solutions may not always meet the unique needs of a project. Our customized transformer design and manufacturing services provide tailored solutions that perfectly meet your technical specifications, environmental conditions, and operational needs.
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Original factory service
Stereoscopic Mobile Service
Our services:
Our services:
Ideal use:
Ideal use:
Original Equipment Manufacturing
Original Design Manufacturing
You design, we manufacture. Very suitable for companies with internal engineering teams and a need for reliable production partners.
We design and manufacture. Very suitable for companies seeking complete solutions but without internal engineering resources.
Manufacturing according to your precise specifications
Strictly adhere to the design documents
Conduct quality control according to your standards
Flexible production volume
Your brand, your intellectual property ownership
Complete design and engineering services
Verified design through field testing
Faster time to market
Cost effective solutions
White Label Brand Options
Companies with proprietary designs, mature brands that require stable quality, and projects with specific technical requirements.
Distributors, resellers, startups, and companies that wish to rapidly expand their product line without the need for research and development investment.
我们的定制流程
01
02
03
Preliminary Consultation
Technical Assessment
Design and Engineering
We will start with a comprehensive discussion of your project requirements, technical specifications, and operational limitations. Our engineering team will analyze your needs and determine the optimal solution.
Our engineers conduct detailed technical assessments, including load analysis, environmental factors, installation conditions, and compliance requirements. We provide feasibility studies and preliminary recommendations.
Based on approved specifications, our R&D team develops detailed designs, including electrical calculations, thermal analysis, mechanical drawings, and material selection. We provide complete documents for your review.
从概念到交付，我们全程引导您完成每一步
Technical information response
Respond to user input information one by one
Control of non-conforming products
Products that are not allowed to be accepted with concessions
Strictly follow the 'Nonconforming Product Control Procedure' for non-conforming products
Product Design Control
Review during the technical solution design phase
Prepare material ordering technical conditions and test outline
Conduct technical briefing meetings
Conduct relevant experiments and verification work
Process Validation
Carry out process validation work
Assign tasks and train qualified employees before they can start working
Document and Record Control
Prepare the Quality Plan and inspection documents
Supplier Product Quality Control
All externally supplied parts must pass inspection before they can be stored and circulated
Supplier Development
The admission process shall be strictly implemented in accordance with the Supplier Management Procedure
Material Procurement
Suppliers shall provide corresponding inspection records and test reports
For newly added or improved raw materials and components, a first article review must be conducted
After-sales service
18 hour lightning service, no overnight issues
Adhering to the high-speed rail service philosophy of "after-sales speed determines long-term development", we promise to have a response within 1 hour, arrive at the scene within 7 hours, and solve problems within 10 hours. We provide 24-hour customer service management, making every unexpected situation an opportunity to verify our commitment.
For the overseas business sector, we have opened a dedicated one-on-one remote video technology guidance channel, supporting real-time online teaching through communication software from multiple countries; At the same time, cooperation docking points can be established in some key overseas areas to provide localized after-sales support, making cross-border cooperation communication more efficient and after-sales more guaranteed.
Production tasks and process quality control
Ensure timely delivery of products through production network diagrams
Track and inspect product quality throughout the entire process
Product inspection and testing control
Conduct full process inspection of product manufacturing: warehousing, process, and terminal
Develop test plans, organize and implement routine and type tests for products
First inspection review FAI
Inspect the first product process and end products according to relevant drawings and inspection documents. Only after the first inspection is passed and all rectification items are implemented, can mass production be carried out
Comprehensive customization options
Electrical parameters Mechanical Design Environmental Adaptation Intelligent functions |
Customization of electrical parameters
Customize electrical specifications based on your specific power needs and grid conditions.
voltage range
Phase configuration
Power capacity
tap changer
frequency
impedance
0.4kV-35kV(Once and twice)
Single phase/Three phase
25kVA - 20,000kVA
OLTC、DETC，Or customize the tap position
50Hz/60Hz/custom dual band
Customized impedance values for specific applications
Non standard voltage
Low loss design
overload capacity
Harmonic filtering
Mechanical design flexibility
Customize physical configuration based on your space limitations and installation requirements.
Size
Terminal configuration
Fence Type
Color and surface treatment
Installation Options
Weight optimization
Customized sizes for narrow spaces or specific layouts
Top, bottom, and side entrances, equipped with multiple types of connectors
Pad top, pole support, vault, indoor, outdoor
Customized RAL color and protective coating
Floor, wall, utility pole, customized structural support
Lightweight design of transportation constraints
compact design
Convenient maintenance
Modular structure
earthquake resistance
Environmental Adaptation
Tested by extreme and harsh environments worldwide.
protection level
fit height
cooling system
anti-corrosion
temperature range
Noise reduction
IP20 to IP68 (dustproof and waterproof)
The highest altitude can reach 5000 meters
AN，AF，ONAN，ONAF，OFAF，Customized hybrid vehicle
Marine grade coatings for coastal/offshore applications
-Operating in an environment of 50 ° C to+55 ° C
Ultra quiet design can be reduced to 40dB
explosion-proof
UV-resistant
Salt proof spray
Dustproof
Intelligent monitoring and control
Integrate advanced monitoring and control systems to achieve predictive maintenance and remote management.
temperature monitoring
alarm system
Load management
data recording
Internet of Things Integration
Communication Protocol
Real time winding and oil temperature sensor
Overload, overheating, and fault detection
Current, voltage, and power monitoring system
Historical data storage and analysis
Cloud connection for remote diagnosis
Modbus、SCADA、BMS integration
predictive maintenance
mobile application
remote control
Artificial Intelligence Analysis
We customize every detail from electrical parameters to physical design
Serving diverse industries worldwide
Customized transformers designed for specific industry needs
renewable energy
railway system
telecommunications
Ocean and Offshore
infrastructure
Special Environment
Mining
Manufacturing plant
smart grid
data center
Oil and Natural Gas
medical facilities
Wind farms, solar power plants, and hybrid renewable energy systems require specialized voltage conversion
Traction transformers and power supply systems for subway, light rail, and high-speed railway networks
Provide reliable power supply for telecommunications towers, base stations, and communication network infrastructure
Corrosion resistant transformers suitable for offshore platforms, ships, and coastal facilities
Power distribution for airports, sports stadiums, commercial complexes, and urban development projects
Customized solutions for extreme temperatures, high altitudes, seismic zones, and other challenging environments
Heavy duty transformers suitable for harsh mining environments, with explosion-proof and dust-proof designs
Industrial transformers for heavy machinery, production lines, and automated manufacturing systems
Intelligent transformer with modern smart grid application monitoring capability
High reliability transformer with redundancy, low noise, and precise voltage regulation, suitable for critical IT infrastructure
Explosion proof transformers for refineries, petrochemical plants, and oil extraction facilities
Medical grade transformer with ultra-low noise and high reliability, suitable for hospitals and clinics
Unlimited customization possibilities
Every project is unique, and we understand that a one size fits all approach may not be suitable for everyone. Our engineering team can customize almost every aspect of the transformer to ensure it fully meets your needs, installation limitations, and operating environment.
From physical dimensions to electrical characteristics, from aesthetic finishes to advanced monitoring systems, we offer complete flexibility in design and manufacturing.
Custom Size
Tailored size according to narrow space or specific installation requirements
Noise reduction
Ultra quiet design suitable for residential areas and noise sensitive applications
Terminal configuration
Flexible terminal layout and connection types for easy installation
fit height
Optimized for high-altitude facilities with low air density
Color and surface treatment
Customized RAL color and protective coating for brand or environmental matching
seismic resistance
Seismic design of earthquake active areas
Tap changer options
OLTC, DETC or customized tap changer for voltage regulation
Extreme temperatures
Design for Arctic cold or desert high temperature conditions
Strict quality control at each stage ensures reliable performance
99.8%
First quality rating
Design Verification
Material Inspection
production control
Factory test
IS09001
Quality Management
< 0.5%
failure rate
25-30岁
life expectancy
Uncompromising quality standards
Management system certification, product standard certification, market certification
Comprehensive design review, including electrical calculations, thermal analysis, and pre manufacturing simulation testing
Conduct strict incoming inspections on all raw materials, including silicon steel, conductors, and insulation materials
Process quality inspection at each manufacturing stage ensures consistent quality and early problem detection
Conduct comprehensive testing according to IEC/IEEE standards, including routine testing, type testing, and special testing as needed
ISO9001
GB1094
ISO140001
IEC60076
ISO45001
CE
ISO50001
GOST
GB/T29490
Everything you need to know about our customized transformer service
What is the minimum order quantity (MOQ) for customized transformers?
We accept customized orders starting from Unit 1. Whether you need a single prototype or mass production, we can meet your needs. For larger quantities (10+pieces), we offer bulk discounts and can optimize mold costs.
Can you modify or improve the existing transformer design?
Yes, we can reverse engineer existing designs and provide improvements. Our team can analyze your current transformer, identify weaknesses or inefficiencies, and develop enhanced versions with higher performance, reliability, or cost-effectiveness.
Do you provide prototype production services before mass production?
Yes, we strongly recommend creating a prototype for the new design. We can manufacture prototypes for testing and validation before full-scale production. This allows you to verify performance, make adjustments, and ensure that the design meets all requirements.
Who owns the intellectual property (IP) for customized design?
For the OEM project you provide design for, you retain full intellectual property ownership. For the three-dimensional mobile project we design solutions for, intellectual property ownership is negotiable and usually specified in the contract. We can provide exclusive design or shared intellectual property arrangements according to your needs.
Can you handle international transportation and customs clearance?
Yes, we have extensive experience in international logistics. We can handle all export documents, customs clearance, and transportation arrangements. We collaborate with reliable freight forwarders to deliver goods to any location worldwide.
How long does the custom design process take?
A typical timeline is: design and engineering (2-3 weeks), prototype development (3-4 weeks), testing and validation (1-2 weeks), and mass production (4-6 weeks). The total delivery time for standard customized projects is usually 6-8 weeks. Complex projects may require additional time.
What customized transformer documents do you provide?
We provide comprehensive documentation, including detailed technical drawings, electrical schematics, test reports (FAT), material certificates, quality inspection records, operation and maintenance manuals, and compliance certificates (CE, ISO, etc.).
What testing standards do you follow for customized transformers?
We conduct testing according to international standards, including the IEC 60076 series and GB/T standards. Testing includes routine testing, type testing, and special testing as needed. We can also conduct testing according to specific standards or requirements of our clients.
What warranty do you provide for customized transformers?
We offer a standard two-year warranty that covers manufacturing defects and material issues. The warranty includes free replacement of defective parts, technical support, and on-site service if needed.
What payment terms do you offer for customized projects?
For existing clients or large projects, we can negotiate flexible payment terms or other arrangements.
Common questions about customized solutions
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Guangzhou Junfa Electrical Equipment Co., Ltd
Email：intl@crrcjf.com
Address: No. 15 Huashan Road, Shilou Town, Panyu District, Guangzhou City
Sustainable development
International:+86-15973219221 Domestic:+86-18518168980