What are the minimum order quantities (MOQ)?

Standard products have an MOQ of 1 unit. Customized products have an MOQ determined through negotiation based on specific specifications.

What payment methods do you accept?

We primarily accept T/T (50% advance, 50% before shipment). Other methods include LC, D/P, PayPal, Western Union, and Money Gram.

What is the typical delivery lead time?

Standard small transformers take 15-30 days. Large or custom transformers take 45-90 days or longer. Exact time is provided after inquiry.

How are transformers packaged for safe transport?

We use shock-absorbing, waterproof materials in solid wooden cases. Cases are fumigated for customs. Packaging suits LCL (crates) or FCL (secured inside container).

What is the warranty period?

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

How do you provide technical support?

We offer remote guidance via phone/email/video and on-site service by engineers (fees may apply). We also guarantee long-term spare parts supply.

Premium Core Material Oil Immersed Transformer for Quality

Name: Premium Core Material Oil Immersed Transformer for Quality
Brand: Qingdao Newfield New Energy Technology Co., Ltd.
SKU: 2145864732

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

Long Service Life: Designed for stable operation with a service life of up to 25 years.

High Efficiency Design: Low-loss structure reduces energy consumption and operation costs effectively.

Robust Protection System: Equipped with alarms and cut-offs for overvoltage, overcurrent, and oil leakage.

Wide Application Range: Suitable for power grids, industrial plants, residential areas, and transportation hubs.

Customizable Materials: Coil structure can be customized with Copper or Aluminum based on requirements.

International Certifications: Complies with ISO9001, IEC, CCC, CE, and UL standards for global use.

Stable Performance: Oil-immersed insulation ensures heat dissipation in high temperature and humidity.

Low Noise Emission: Advanced structural design ensures quiet operation in various 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: ≤15hTerms 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 international certifications do your products hold?

Our factory is ISO 9001 certified. Products comply with IEC, CE, CCC, and UL standards. We can also apply for country-specific certifications upon request.

Q:What is the production capacity of your factory?

We have a modern production base with an annual capacity exceeding 10,000 units, manufacturing transformers from 30KVA to 20MVA.

Q:How do you ensure product quality?

We implement strict source control, process control at critical stages, and final rigorous testing with reports provided before shipment.

Q:What types of transformers do you manufacture?

We primarily produce oil-immersed transformers for outdoor/industrial use and dry-type transformers for indoor/commercial/high-fire-safety locations.

Q:Are windings made of copper or aluminum?

We offer both. Copper offers higher efficiency and strength, while Aluminum is a lower-cost, lighter alternative. Selection depends on budget and efficiency needs.