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Reliable Transformer
Solutions Worldwide

Hangzhou Giantway Import & Export Co., Ltd. offers high-quality transformer accessories, complete testing systems, and customized power solutions with over 10 years of industry expertise. Trusted by clients across Europe, South America, Asia, and Africa.

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About HZ Giantway

Founded in 2013, Hangzhou Giantway Import & Export Co., Ltd. specializes in international trade of transformer accessories and complete power solutions. With over a decade of experience, we serve customers in Europe, South America, Asia, and Africa.

We collaborate closely with leading Chinese manufacturers to deliver high-quality products at competitive prices. Our mission is to provide one-stop procurement, customized support, and fast response services that grow alongside our customers and partners.

10+
Years Experience
50+
Global Clients
HZ Giantway Factory

Our Strengths

One-Stop Procurement

Complete transformer solutions from a single source, improving purchasing efficiency.

Customized Support

Tailored solutions to meet specific technical and commercial requirements.

Logistics Distribution

Efficient global shipping and reliable delivery timelines.

After-Sale Warranty

Comprehensive support and service after delivery.

Production Network

Strong partnerships with professional Chinese manufacturers.

Our Products

High-quality transformer components and complete systems for global applications

Oil-immersed Transformer

Oil-immersed Transformer

High-efficiency power transformers designed for long-term reliability in utility and industrial applications.

  • • Available in various kVA ratings
  • • Robust tank design
  • • Suitable for outdoor installation
Pad-mounted Transformer

Pad-Mounted Transformer

Compact, ground-mounted transformers ideal for urban and commercial power distribution.

  • • 1000kVA, 750kVA, 250kVA models
  • • Single & Three Phase options
  • • 13.8kV, 34.5kV input
Tap Changer

De-Energized Tap Changer

Linear and round types for precise voltage regulation in power and distribution transformers.

  • • Linear & Round models
  • • Knob-operated variants
  • • High durability design
On-load Tap Changer

On-Load Tap Changer

Enable voltage adjustment without interrupting power supply for continuous operation.

  • • Type WSTZH3 series
  • • Delta & parallel connection
  • • High switching reliability
Transformer Bushing

Transformer Bushing

High-voltage insulation components in ANSI, BS, DIN, EN, and epoxy types.

  • • 1.2kV to 35kV ratings
  • • Porcelain & composite options
  • • BIL up to 30kV
Testing Equipment

Transformer Test Systems

Complete test benches for quality assurance and commissioning of transformers.

  • • 10kV–500kV systems
  • • Dielectric loss testers
  • • Withstand voltage testing

Transformer Thermometers

Accurate monitoring of oil and winding temperatures for safe transformer operation.

  • • Bimetal & pressure types
  • • Oil & winding indicators
  • • Remote monitoring options

Amorphous Alloy Core

Energy-efficient transformer cores with ultra-low no-load losses for green power systems.

  • • High permeability
  • • Reduced eddy current loss
  • • Ideal for distribution transformers
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Our Services

Comprehensive support from procurement to after-sales

Procurement Service

One-stop sourcing of transformer components with quality assurance.

Customization

Tailored designs and specifications to meet project requirements.

Global Logistics

Reliable shipping and customs clearance worldwide.

After-Sales Support

Technical assistance, warranty service, and spare parts supply.

Client Testimonials

Trusted by customers across the globe

“

Excellent quality and timely delivery. HZ Giantway solved our procurement challenges efficiently.

Colombian Customer
Power Utility Sector
“

Professional team with deep technical knowledge. Highly recommend their transformer solutions.

Peruvian Client
Industrial Project
“

Reliable partner for our substation upgrades. Fast response and competitive pricing.

Türkiye Distributor
Energy Infrastructure
“

Smooth cooperation from quotation to delivery. Their testing equipment met all standards.

Thai Engineer
Commissioning Team

Latest News

April 17, 2025

Team HZgiantway is Dubai-Bound!

We're excited to attend Middle East Energy 2025 in Dubai. Visit us to discuss transformer solutions.

March 9, 2023

Middle East Energy Legacy

Celebrating 45 years as a leading global energy industry event. HZ Giantway participates annually.

October 27, 2023

Pakistan Customer Visit

A delegation from Pakistan toured our facilities and reviewed ongoing collaboration projects.

Get in Touch

Ready to discuss your transformer needs? Contact HZ Giantway for expert support and quotations.

Email

[email protected]

Phone

+86 13003609797

Location

Hangzhou, China

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