Xi'an, Shaanxi, China · OEM / ODM Transformer & Power Supply Manufacturer [email protected]  |  ✔ Intertek-Verified Supplier
Product Showcase & Workshop

Toroidal Transformer

Custom-engineered toroidal power solutions by Shaanxi Zelqo Power Co., Ltd. Combining low acoustic noise, minimal electromagnetic stray field, and rigorous end-to-end quality assurance.

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Selected Series

Toroidal Transformers Engineered for Demanding Systems

From Hi-Fi audio amplifiers to high-power industrial converters and solar inverters

LVD / FCC
500VA Electrical Toroidal Transformer for Inverters

500VA Electrical Toroidal Transformer for Solar Inverters

$18.90 - $26.90 Min. Order: 1 piece
LVD / FCC
300W Amp Toroidal Low Frequency Transformer

300W Amp Toroidal Low Frequency Transformer

$12.89 - $21.90 Min. Order: 1 piece
LVD / FCC
Toroid Transformer Coil Core 12V DC Light

Toroid Transformer Coil Core 12V DC Neon Light Power

$20.00 - $50.00 Min. Order: 1 piece
LVD / FCC
10kW Step Down Transformer 230V 110V

10kW Step Down Industrial Transformer 230V to 110V

$150.00 - $300.00 Min. Order: 10 pieces
LVD / FCC
Factory Direct Power Toroidal Transformer

Direct Power Toroidal Transformer 24V 36V 40V 55V 300VA

$20.00 - $50.00 Min. Order: 1 piece
LVD / FCC
5000VA Toroidal Transformer

5000VA Step Up / Step Down Customized Toroidal Transformer

$25.00 - $65.00 Min. Order: 5 pieces
LVD / FCC
Professional Audio Toroidal Transformer

1500W-2000W Professional Audio Low-Hum Trafo Transformer

$57.80 - $86.90 Min. Order: 5 pieces
LVD / FCC
500VA Isolation Toroidal Transformer

500VA Isolation Toroidal Transformer with 100% Copper Wire

$3.50 - $18.50 Min. Order: 5 pieces
LVD / FCC
Inverter Toroidal Transformer

50Hz / 60Hz Low Loss Inverter Toroidal Transformer

$25.00 - $65.00 Min. Order: 5 pieces
LVD / FCC
Heavy-duty Toroidal Transformer

Heavy-Duty 1000W - 5000W Customized Toroidal Transformer

$50.00 - $100.00 Min. Order: 5 pieces
LVD / FCC
Power Amplifier Toroidal Transformer

1000W-3000W High Efficiency Amplifier Toroidal Transformer

$40.80 - $65.90 Min. Order: 1 piece
LVD / FCC
Multi-tap Audio Step Down Transformer

240VAC Multi-Tap Audio Toroidal Step Down Transformer

$12.90 - $18.60 Min. Order: 1 piece
Quality & Traceability

Verified Manufacturing Process & Equipment

Precision manufacturing flow followed by comprehensive electrical testing

Production Stage & Assembly Stations

Winding
Winding
Cutting
Cutting
Core Insulation
Core Insulation
Primary Winding
Primary Winding
Wiring Process
Wiring Process
Fixture
Fixture
Cutting Instrument
Cutting Instrument
CNC Winding Machine
CNC Winding Machine
Circular Winding Machine
Circular Winding Machine
Wrapping Machine
Wrapping Machine
Winding Machine
Winding Machine
Pipe Cutter
Pipe Cutter
Crimping Machine
Crimping Machine
Packing
Packing
Export Packing
Export Packing

Testing & Inspection Stations

In-process Testing
Testing
Semi-finished Products Test
Semi-finished Test
Aging Test
Aging Test
Finished Goods Inspection
Finished Inspection
Digital Power Meter
Digital Power Meter
AC Power Source
AC Power Source
LCR Digital Bridge Tester
LCR Bridge Tester
DC Low Resistance Tester
DC Low Resistance
Impulse Winding Tester
Impulse Tester
Hi-pot Tester
Hi-pot Tester
B2B Direct Sourcing

Looking for Custom Transformer Specifications?

Shaanxi Zelqo Power Co., Ltd. provides design-based and sample-based customizations including primary/secondary turns, mounting style, leads length, and potting encapsulation. Reach out directly to receive engineering analysis and quotations within 24 hours.

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