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China 22 kW DC Charger Suppliers & Factories

High-Efficiency Fast Charging Solutions for the Next Generation of Sustainable Mobility

Premier 22kW DC & High-Power Charging Portfolio

TONGXING NEW ENERGY TECHNOLOGY CO., LTD.

A National High-Tech Enterprise Pioneering Smart Charging Solutions

As a certified national high-tech enterprise with 23 years of expertise in the energy sector, Tongxing specializes in the R&D, production, and global distribution of innovative EV charging systems. Our comprehensive product portfolio spans from 3.5KW residential chargers to industrial-grade 960KW ultra-fast charging stations, complemented by integrated photovoltaic (PV) and energy storage solutions.

In the rapidly evolving landscape of Electric Vehicle Supply Equipment (EVSE), the 22kW DC charger has emerged as the "Goldilocks" solution—providing significantly faster replenishment than standard AC chargers while maintaining lower installation costs than high-kilowatt DC stations.

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Manufacturing & R&D Mastery

  • 72,000m² Intelligent Production Base
  • 18 automated assembly lines (95% automation)
  • 200-Strong Workforce with 140+ certified engineers
  • Full-Stack Development: Hardware & Cloud Software

The 22kW DC Revolution: Technology Roadmap & Future Outlook

Understanding why 22kW DC is the strategic choice for modern fleets and commercial sites.

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Direct-to-Battery Efficiency

Unlike 22kW AC chargers that rely on the vehicle's limited On-Board Charger (OBC), our 22kW DC chargers bypass the OBC, delivering power directly to the battery. This ensures a consistent 22kW rate regardless of the car's internal hardware limitations.

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The SiC Advantage

Our roadmap integrates Silicon Carbide (SiC) power modules. SiC technology reduces energy loss by 50% and allows for more compact, fan-less designs that are ideal for noise-sensitive urban environments.

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V2X & Smart Grids

Future-proofing is at our core. Our 22kW systems are being upgraded to support Vehicle-to-Grid (V2G) bi-directional charging, allowing EVs to serve as mobile energy storage units for peak shaving.

China Factory 4.0: Supply Chain Resilience & Efficiency

Smart Factory

The competitive advantage of Chinese 22kW DC charger manufacturers lies in the "Vertical Integration" of the supply chain. At Tongxing, we control every step:

  • 🔹 Component Sourcing: Direct partnerships with top-tier semiconductor and magnetic component suppliers ensure 100% material traceability.
  • 🔹 Precision Assembly: Using IoT-enabled torque drivers and automated optical inspection (AOI) to eliminate human error.
  • 🔹 Rigorous Testing: Every unit undergoes 24-hour full-load burn-in testing and IP65 waterproof verification before shipment.
98.6% Field Reliability
24m Standard Warranty

Integrated Full-Scenario Energy Ecosystems

Moving beyond standalone chargers to smart energy management.

Solar

PV Direct Supply

Rooftop solar panels provide real-time power, meeting 30%-50% of charging demand at as low as 1/3 of peak grid prices.

Storage

Peak Shaving Storage

Store low-cost power during off-peak hours and release it during peak hours, reducing grid costs by 40% per station.

VPP

Smart Management

Proprietary OCPP 2.0-compliant systems enable seamless payment gateway integration and remote monitoring.

Performance Indicator Traditional AC Solution Tongxing 22kW DC Solution Operational Improvement
Charging Efficiency (DC Direct) 75-85% (OBC Dependent) 96%+ ↑ 15% Savings
Installation Footprint Bulky Wallboxes Modular & Compact Space Optimized
Grid Impact Unbalanced Phase Loading Balanced 3-Phase Input Grid Harmonic Stability
Annual Carbon Offset Standard Optimized with PV Storage 40-60% Reduction

Localization & Global Compliance

International procurement requires more than just a good price; it requires rigorous adherence to local standards. Tongxing ensures your 22kW DC charger projects are "Plug-and-Play" globally.

🇪🇺 Europe
CE, TUV, IEC 61851, OCPP 1.6J/2.0J
🇺🇸 North America
UL Listed, Energy Star, FCC Part 15
🌏 APAC
GB/T Standard, RCM Compliance
🌍 Middle East
Reinforced Thermal Shells (up to 75°C)

Why Global Enterprises Choose Us?

Beyond hardware, we provide the local support infrastructure required for large-scale deployments:

  • White-labeling (OEM/ODM): Custom firmware and branding for your network.
  • API Integration: Connect our chargers to your existing billing software via cloud-to-cloud protocols.
  • Extended Service: 24/7 remote diagnostic support to ensure 99.9% station uptime.

Frequently Asked Questions: 22kW DC Charger Procurement

Q: Why choose 22kW DC over 22kW AC?

A: Most modern EVs (like Tesla Model 3 or VW ID.4) only have an 11kW onboard AC charger. If you use a 22kW AC station, the car only charges at 11kW. A 22kW DC station bypasses the onboard charger, delivering the full 22kW to the battery, halving the charge time.

Q: What is the typical Lead Time for bulk orders?

A: Thanks to our Factory 4.0 automation, standard orders are fulfilled within 15-20 days. Custom OEM orders (branding/software) typically take 30-45 days.

Q: How does the charger perform in extreme cold/heat?

A: Our units are IP55/IP65 certified and feature active thermal management. They operate reliably from Icelandic winters (-35°C) to Saudi desert heat (75°C).

Q: Is the software compatible with my current network?

A: Yes. All our DC chargers are OCPP 1.6J and 2.0J compliant, ensuring compatibility with virtually every major Charging Station Management System (CSMS) globally.

Q: Can these chargers be used for residential complexes?

A: Absolutely. The 22kW DC wallbox is the premium choice for multi-family dwellings where turnover is higher and users need faster charging than overnight AC.

Q: What are the maintenance requirements?

A: DC chargers are modular. Maintenance usually involves annual filter checks (for air-cooled models) and remote firmware updates. Most issues are resolved via our cloud diagnostics.

Advanced Energy Storage & Charging Hardware