Why Do Chargers at Heavy-Duty & Public Sites Constantly "Break Down"?

Dust-clogged vs Clean Charger
80%
Failure Rate

Fragile Modules

Real-world station data reveals that 80% of charging station failures originate from charging module damage.

Harsh Environments

Dust, catkins, and sand found in mines, ports, and outdoor retail parks lead to severe dust accumulation, blocked heat dissipation, and massive power derating.

Costly O&M

Relying on frequent manual cleaning drives up Operations & Maintenance (O&M) costs, causes equipment downtime, and plummets fleet/customer availability.

Protecting the charging module is the only way to extend equipment lifespan and secure your station's profitability.

Our Answer: From "Passive Defense" to an "Active Cleaning" Revolution

We've reimagined charging infrastructure with a groundbreaking approach that eliminates the root cause of failures.

Exploded view of Doer-Tech Charger

Fully Sealed Independent Air Duct

  • Double-layer louver design ensures complete protection for both air inlets and outlets.
  • Zero external dust intrusion during standby mode.
  • Isolates 99% of airborne particles, ensuring industrial-grade reliability.

Active Dust Removal System

  • Industry Exclusive (Patented): Competitors cannot replicate this performance.
  • Smart Automation: Automatically triggers vibration-based dust removal after every 10 charging sessions (frequency is fully customizable).
  • Foolproof Safety: During the cleaning cycle, the screen locks with the prompt "Dust Removal in Progress, Do Not Charge" and displays an E-stop status to prevent manual errors. Normal operation auto-resumes upon completion.

Beyond High Protection: Engineered for Seamless Operations

Our chargers don't just survive harsh environments—they thrive in them while delivering exceptional performance.

Ultra-Fast Simultaneous Charging

Wide power coverage scaling up to 400kW.

Perfectly adapted for heavy-duty electric trucks, construction machinery, and high-turnover retail charging hubs requiring massive power delivery.

Ultra-Quiet Design

Full-load operating noise ≤65dB across all power ranges.

Ideal for stations near residential zones, commercial centers, or night-time off-peak charging, eliminating the risk of environmental noise complaints.

Meet the U Series DC Chargers

The U Series DC chargers are specifically designed for public and retail applications, bringing industrial-grade resilience to high-traffic commercial spaces.

U Series DC Charger
U Series

Power Options

180kW / 220kW / 240kW / 400kW

🛠️

Installation

Floor Mount (Space-efficient & secure)

📶

Connectivity

RFID / App / Credit Card POS / OCPP

🧠

Power Management

Dynamic Load Balancing / Liquid Cooling (Optional)

Technical Specifications

Input Voltage 400V AC ± 10% (3-Phase)
Output Power 180kW / 240kW / 320kW / 400kW
Connector Type CCS1 / CCS2 / CHAdeMO / GB/T (Fully Customizable)
Protection Rating IP55 (High Dust/Water Resistance) / IK10 (Vandal-Proof)
Warranty 2-Year Extendable Warranty

Purpose-Built for the World's Most Demanding Environments

Our chargers are engineered to excel in the toughest conditions, delivering reliable performance where others fail.

Mining site charging
🏭

High-Dust Industries

Concrete batching plants, steel mills, and heavy construction sites.

Port charging station
🚛

Heavy Transport Hubs

Heavy-duty logistics parks, port terminals, and mining bases.

Shopping mall charging station
🛒

Public & Retail Hubs

Shopping malls, highway rest stops, and commercial fleet depots.

Residential area charging station
🌙

Noise-Sensitive Stations

Commercial vehicle charging stations near living areas requiring quiet night-time operations.

Exclusive Technology Built to Maximize Your Profitability

Less Manual Intervention

Say goodbye to frequent downtime for manual cleaning (Active Dust Removal does the work).

Extended Asset Lifespan

IP55/IK10 ratings and zero dust interference mean a significantly longer hardware lifecycle.

Lower Total Cost of Ownership

Drastic reduction in O&M expenses.

Maximized Fleet Uptime

Dynamic Load Balancing and stable power delivery keep your operations moving.

Tailor Your Charging Solution Today

No two sites are the same. We customize energy capacity, power output, connector quantity, charging standards, and even autonomous driving configurations based on your exact requirements.

Share your deployment scenario with us, and our engineers will recommend the optimal product combination.

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