Varnix manufacturing plant and test facilities

Company Profile & Manufacturing Strength

SGS Verified Manufacturer ISO 9001:2015 Certified 23 Years Exporting Experience US Overseas Warehouse
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Enterprise Overview

Engineering Reliable Power Conversion Systems Since 2003

Varnix Technology Co., Ltd. is a dedicated custom manufacturer and engineering partner specializing in industrial-grade power conversion equipment. Operating from an SGS-audited 1,229 m² production facility in Guangzhou, Guangdong, China, Varnix serves global clients across the telecommunications, off-grid renewable energy, industrial automation, and automotive electronics sectors.

Over the past 23 years, our in-house engineering and production teams have specialized in the full product lifecycle: circuit design, surface mount & wave welding, enclosure fabrication, transformer winding, precision functional calibration, and 100% full-load burn-in aging tests.

To support buyers with immediate deployment schedules, we maintain dedicated inventory in our United States overseas warehouse, significantly reducing fulfillment cycles for key DC-DC voltage regulators and standard pure sine wave inverters.

Production Infrastructure

Integrated Step-by-Step Manufacturing Workflow

Every inverter, converter, and power supply unit undergoes our rigorous 13-stage manufacturing process, tracked by QA/QC inspectors to ensure zero-defect shipment.

Raw Material Inspection and Inventory
Raw Material Storage01
Component Wave and Manual Welding Line 1
Welding Line 102
Circuit Board Wave and Manual Welding Line 2
Welding Line 203
Inverter Core Component Assembly Line 1
Assembly Line 104
DC-DC Converter Housing Assembly Line 2
Assembly Line 205
Complete Power Supply Assembly Line 3
Assembly Line 306
Industrial Temperature Curing Oven
Curing Oven07
Chassis Drilling and Mechanical Processing
Drilling & Machining08
Initial Electrical Function Test Station
Function Testing09
High-Temperature Full-Load Aging Burn-in Racks
Aging / Burn-in Test10
Final Quality Inspection and Parametric Validation
Final QC Inspection11
Export Shockproof Packaging Station
Export Packaging12
Finished Goods Warehouse Ready for Dispatch
Finished Goods Depot13
Quality Assurance & R&D

Precision Testing Equipment & Inspection Procedures

Quality management at Varnix Technology Co., Ltd. is backed by four dedicated QA/QC engineers and specialized laboratory instruments.

Dual Oscilloscope Verification

Role: Waveform & Transient Analysis

Every pure sine wave inverter is verified on calibrated digital storage oscilloscopes to maintain Total Harmonic Distortion (THD < 3%) and prevent surge fluctuations.

Oscilloscope waveform analysis

High-Precision Digital Multimeters

Role: Voltage & Current Calibration

Rigorous validation of input-output voltage regulation, conversion efficiency, no-load draw, and current ripple across all DC-DC step-down and step-up modules.

High-precision multimeter testing

100% Full-Load Burn-In Racks

Role: Stress Screening & Thermal Testing

All power supplies, rectifiers, and converters operate under full rated load inside temperature-controlled aging stations to eliminate infant mortality defects.

Full load aging test racks
International Compliance

Third-Party Audits & Product Certifications

All Varnix series comply with critical international safety, EMC, and environmental standards required across North American and European markets.

ISO 9001:2015 Management Certification

ISO 9001:2015

Cert: 110825Q0187R0S

Certified quality management for power equipment design, surface assembly, and finished goods testing.

Management System
CE Conformité Européenne

CE Mark (LVD & EMC)

Cert: AiTSZ-260112038C

Complies with EU Low Voltage & Electromagnetic Compatibility Directives for commercial deployment in 31 EEA nations.

Safety & EMC Certified
RoHS Environmental Compliance

RoHS (EU) 2015/863

Cert: AiTSZ-260112038RC09

Strict restrictions on lead, cadmium, mercury, and phthalates, meeting eco-conscious procurement standards worldwide.

Eco Compliance
FCC Radio Frequency Compliance

FCC Part 15 Class B

Cert: HTT202608391F

Certified compliant with US electromagnetic radiation limits to ensure zero interference in telecom and industrial operations.

US EMC Standard
Enterprise Specifications

Quick Facts for Procurement Managers & Engineers

Company Legal Name Varnix Technology Co., Ltd.
Year Established / History Established in 2003 (23 years of specialized power conversion R&D and export)
Operational Address Room 402, No. 11, Kehui 1st Street, Kexue Avenue, Guangzhou, Guangdong, China
Facility Floor Area 1,229 m² production and QA testing workshop (Verified onsite by SGS Group)
Total Headcount 58 full-time personnel (including R&D engineering and 4 QA/QC specialists)
Core Product Lines Pure Sine Wave Inverters, Telecom Rack Inverters, DC-DC Buck/Boost Converters, Embedded Rectifiers, Programmable DC Power Supplies, Smart Battery Chargers
OEM & ODM Customization Full customization, design-based development, sample processing, logo/silk-print branding, custom enclosures, and connector pinouts
Main Export Markets North America (20%), Western Europe (20%), Domestic Market (20%), Oceania (8%), Southeast Asia (7%), Global Others (25%)
Shipping Ports & Warehousing Guangzhou Port, Shenzhen Port, plus an overseas warehouse facility in the United States
Supported Commercial Terms FOB, CFR, CIF, EXW, FCA, CPT, DDP, DDU, and Express Delivery
Engineering Inquiries [email protected]

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