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09 Donshing on-Load Tap-Changing Oil-Immersed Transformers
US$800.00-2,000.00
1 Piece
Sample price:US$10000.00/piece.Request sample
Product profile
Customization
AvailableApplication
Power, Electronic, Instrument, Lighting, Rectifier, AudioPhase
ThreeModel NO.
SZ13Core
Core-type TransformerCooling Method
Oil-immersed Type TransformerWinding Type
Two-winding TransformerCertification
ISO9001-2000, CCC, CEUsage
Power Transformer, Distribution TransformerFrequency Characteristics
Power FrequencyShape of Core
Customized Core ShapeBrand
Donshing EnergyModel No.
Sz13-Sz22, CustomizedRated Capacity
Customized According to Project RequirementsRated High Voltage
35kv, CustomizedRated Low Voltage
Customized According to Project RequirementsRated Frequency
50Hz, CustomizedTransport Package
Export Standard Wooden CaseSpecification
CustomizedTrademark
Donshing EnergyOrigin
ChinaProduction Capacity
20000 UnitsKey features
22+ Years of Export Experience: Established in 2004, Donshing Energy supports overseas power and energy projects with 22+ years of export experience.
Serving 20+ Countries and Regions: Our products and solutions have been supplied to more than 20 countries and regions.
Factories in China and Angola: Production presence in China and Angola enables faster response and closer support for customers in Africa
Africa and Belt and Road Focus: We focus on practical power solutions for African and Belt and Road markets while serving customers worldwide
OEM and ODM Support: Customization is available from specification review and design coordination through manufacturing and delivery
Stable Outdoor Power Distribution: Designed for utility, industrial and infrastructure projects requiring dependable outdoor voltage transformation
Flexible Tank and Accessory Options: Tank structure, tap arrangement, terminals, monitoring accessories and protection devices can be selected to match the project
Project-Specific Electrical Design: Capacity, voltage ratio, vector group, impedance and loss requirements are confirmed before production
Adapted to Local Conditions: The configuration can be reviewed for ambient temperature, altitude, grid conditions and installation requirements
Pre-Shipment Quality Control: Products undergo inspection and testing based on the confirmed specification before delivery
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 22 years CertifiedNearest Port: QingdaoAverage Response Time: ≤1.49h
AI-Powered supplier vetting
SummaryThe supplier presents itself as a professional technical supplier with 22 years of export experience and stated expertise in Africa-market power projects. It offers turnkey substation, EPC support, power distribution, OEM, ODM, 3D design, and broad customization services. Manufacturing-related equipment and documented finished-product inspection instructions indicate production infrastructure. However, service-control documentation is weak: assessment procedures lack written procedures or records, while corrective-action and complaint-handling procedures lack written records. No overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported. The supplier reported no new products during the past year and no SDK availability. Financial credibility cannot be assessed from the provided information without using restricted financial figures. No specific customer cases or named completed projects are provided.
Supplier typeThe supplier is presented as a professional technical supplier serving power-distribution and infrastructure applications, with stated turnkey substation, EPC support, OEM/ODM, mechanical, rubber, plastic, chemical, construction, and mining-related business scopes. Its 22 years of export experience and Africa-market specialization support classification as an experienced technical and industrial supplier.
After-Sales capabilityThe supplier claims fast response, reliable delivery, and long-term cooperation, but its service-capability assessment has no written procedures or followed records. Corrective-action and customer-complaint procedures exist but have no written records, and no overseas warehouse, showroom, agent, branch, or offline trade-show service presence is reported.
Production capacityThe supplier lists rubber compounding, extrusion, knitting, cloth wrapping, vulcanizing, testing, packing, and related equipment, alongside manufacturing and sales scopes covering rubber and plastic products. It also states that finished-product inspection instructions exist and are uniformly followed, providing explicit evidence of production and inspection capability.
Customization capabilityThe supplier explicitly offers OEM and ODM services from design to delivery, 3D design support, and customization from samples, designs, full specifications, minor modifications, and flexible requirements. These consistent statements demonstrate broad customization capability.
Product Q&A
Q:Who are you?
A:
Shandong Dongsheng Supply Chain Co., Ltd. is a power and energy equipment supplier established in 2004. Our market-facing brand is Donshing Energy.
Q:How much export experience do you have?
A:
We have more than 22 years of export experience and have supplied products and solutions to over 20 countries and regions.
Q:Which markets do you mainly serve?
A:
We serve customers worldwide, with a primary focus on Africa and Belt and Road markets.
Q:Do you have production facilities in Africa?
A:
Yes. We have production presence in both China and Angola, enabling faster response and closer support for African customers.
Q:Do you support OEM and ODM projects?
A:
Yes. We support OEM and ODM cooperation based on confirmed specifications, drawings, quantities and quality requirements.
Send Inquiry
*To:
Shandong Dongsheng Supply Chain Co., Ltd
Shandong Dongsheng Supply Chain Co., Ltd*Content:
Supplier replies will be sent to your registered email
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