How do you package transformers to ensure safe transport?

We use sturdy wooden crates with internal securing and moisture-proofing for LCL shipments, or secure fastening inside containers for FCL shipments. All cases are fumigated for customs clearance.

What is the warranty period?

We offer a 12-month warranty from the date of manufacture. Extended warranties are available for major components upon request.

How do you provide technical support if the product malfunctions?

We provide remote guidance via phone, email, or video, and can dispatch engineers for on-site service if required. We also guarantee long-term supply of spare parts.

25 Years Service Life Oil Immersed Transformer for Long Use

Name: 25 Years Service Life Oil Immersed Transformer for Long Use
Brand: Qingdao Newfield New Energy Technology Co., Ltd.
SKU: 2145899132

Shandong, ChinaQingdao Newfield New Energy Technology Co., Ltd.

US$999.00-62,000.00

1 Piece

Product specifications

capacity

voltage

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier

Phase

Three

Model NO.

30KVA-3600KVA

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001

Usage

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Coil Structure

Copper/Aluminum Coils

Service Life

More Than 20 Years

Transport Package

Customized Solid Wooden Case

Specification

30KVA-3600KVA

Trademark

Newfield

Origin

Qingdao

Production Capacity

10000pieces/Year

Key features

25-Year Service Life: Designed for long-term use with a service life of up to 25 years.

Low Energy Loss: Advanced structural design and high-quality core materials ensure low energy loss.

Strong Overload Capacity: Capable of handling strong overload conditions while maintaining stable operation.

High Safety Protection: Equipped with protection devices for overvoltage, overcurrent, and oil leakage alarms.

Customizable Windings: Coil structure can be customized to Copper or Aluminum based on user needs.

International Certifications: Complies with IEC, CCC, CE, and UL standards; ISO 9001 certified.

Versatile Applications: Suitable for power grids, industrial plants, residential areas, and transportation hubs.

Efficient Heat Dissipation: Oil-immersed insulation structure improves heat dissipation for stable operation in harsh environments.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Qingdao Newfield New Energy Technology Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2025-10-11Nearest Port: Qingdao PortAverage Response Time: ≤0.01hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CIF, EXW, CFR, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryQingdao Newfield New Energy Technology Co., Ltd. is a limited manufacturing and R&D company offering power transformers, dry-type transformers, box-type substations and related electrical equipment. It holds multiple management and product certifications, reports quality assurance, and has experience exporting to numerous global regions. Production evidence includes six operated lines, three additional stated production lines, and 41–50 quality-control staff, although the employee count is stated as 25 in another slice and should be verified. The supplier has inventory capability and accepts common trade terms, but lacks overseas warehouses, showrooms, agents or branches, and has not participated in offline trade shows. Its R&D information indicates no available SDK, while financial records are identified only by years without substantive performance data. Manufacturing capacity is weakened by the absence of a valid contract with associated subcontractors. No Fortune 500 customer relationships or named...

Supplier typeThe supplier is identified as a limited company and a combined company, with manufacturing, R&D and sales activities covering power transformers, substations and related electrical equipment. It is not part of a larger company group and is not an offshore company.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018 and ISO14001 certifications, CCC product certification, and ISO 9000/ISO 9001 management-system certifications. A TUV Rheinland audit record is shown as valid from 2026-02-06 to 2027-02-05, but the audit result is recorded as 0 without an explanation.

After-Sales capabilityThe supplier has inventory capability and can quote FOB, CIF, CFR and EXW terms, with service proximity to Qingdao Port. However, it has no overseas warehouse, showroom, agent or branch, serves zero stated overseas countries through those capabilities, and complaint-handling procedures lack written records.

R&D capabilityThe supplier conducts R&D and employs R&D engineers with 6–10 years of total experience, and its stated business scope includes manufacturing and research and development. Nevertheless, it explicitly reports no available SDK, and no concrete patents, products, projects or technical achievements are provided.

Client casesThe supplier reports eight years of international trade and export experience and exports to a wide range of global markets. It explicitly reports no partnerships with Fortune 500 companies, and no named customers, project references, or verifiable case studies are supplied.

Product Q&A

Q:What types of transformers do you primarily manufacture?

We mainly produce oil-immersed transformers suitable for outdoor and large industrial projects, and dry-type transformers ideal for indoor commercial buildings and data centers.

Q:What are the primary materials for transformers? Are windings copper or aluminum?

We offer both copper and aluminum windings. Copper offers higher conductivity and efficiency, while aluminum is a lower-cost, lighter-weight alternative. Selection depends on budget and efficiency requirements.

Q:What is the minimum order quantity?

For standard products, the minimum order quantity is 1 unit. For customized products, the MOQ is determined through negotiation based on specific specifications.

Q:What payment methods do you accept?

We accept T/T (Telegraphic Transfer), typically with a 50% advance payment and 50% balance before shipment. Other methods like L/C, D/P, and PayPal are also available.

Q:What is the delivery lead time?

Lead times depend on the type and quantity. Standard small transformers take 15-30 days, while large or custom transformers take 45-90 days or longer.