PTC Heater HVCH 20KW22KW24KW 400V600V800V Bus Truck Construction Machinery BTMS Battery Heating Cabin Heating RBS

Are You Facing These Thermal Management Challenges?

Applications

EVLINK Technology’s high-voltage PTC water heater is widely used in electric buses, electric heavy-duty trucks,  electric light trucks, mining trucks, and energy storage thermal management systems. 

About Us

Evlink was founded in 2020, specializing in the R&D and manufacturing of automotive-grade high-voltage,  high-power coolant heaters. Our core team brings over 10 years of experience in the electric vehicle components industry.

In 2025, the company achieved an annual revenue of nearly RMB 200 million, with a workforce of 400 employees,  including 80 R&D engineers.

Our core business focuses on electric heating solutions for thermal management systems in commercial vehicles.  We offer high-voltage coolant heaters with a voltage range of 600V–1100V and power output from 3kW to 35kW.  Our mass-produced models reach a maximum rated voltage of DC 870V and a maximum rated power of 35kW,  placing our technical performance at the forefront of the industry.

Our Team

The company operates a modern production base covering 18,000 square meters,  equipped with advanced manufacturing facilities and a  professional management team.

With 16 years of industry experience, we have established a senior R&D team of over 80 experts,  specializing in hardware, software, and system integration.

18000m²   |    80+          |    65+           |     30+

Factory Area                         R&D Engineers                   Export Countries                    Production Lines

Certifications & Patents

Our patented technologies reflect our continuous innovation in high-voltage PTC heating systems,  ensuring efficiency, safety, and long-term reliability.

Production Process

Backed by a professional R&D team and extensive project experience,  we provide customized development and system integration services for high-voltage liquid heaters based on  customers’ actual operating conditions, achieving optimized thermal management performance and better vehicle compatibility.

FAQ

Q: How to choose the right PTC water heater?
A: Please provide the following parameters to help with selection:

· Application scenario (bus / heavy-duty truck)

· Intended use (battery heating, cabin heating, regenerative braking energy recovery)

· Operating conditions

· Operating voltage range

· Rated voltage and power

· Battery type and capacity

· Target outlet water temperature

· Ambient operating temperature

· Coolant flow rate

· Installation space

Q: How does a PTC water heater work?
A: The PTC heater works by passing electric current through PTC ceramic material. The material’s resistance increases as temperature rises, automatically adjusting the heating power to maintain a constant temperature.

Q: Which vehicle types is it suitable for?
A: Suitable for most electric buses, electric trucks, and electric construction machinery (excavators, loaders, etc.).

Q: How does it perform in low-temperature environments?
A: PTC heaters remain stable in low-temperature conditions, making them ideal for electric vehicles in cold regions.

Q: What are the core advantages of EVLINK PTC water heaters?
A: High reliability, fast and uniform heating, patented thermal expansion control, moisture protection, and exceptional performance under extreme conditions.

Q: Is customized development supported?
A: Yes. Common customization options include:

· Power rating (3 kW – 35 kW)

· Voltage platform (400 V – 800 V)

· Communication protocol (CAN / EN enable)

· Mounting bracket design and dimensions

· High-voltage and low-voltage connectors

Q: Is OEM/ODM customization available?
A: Yes. Options include:

· Power and voltage customization

· Connector types

· Communication protocols (CAN, etc.)

· Appearance and mounting structure

Q: What is the lead time?
A: Minimum order quantity: 1 unit. Sample delivery within 7 days. Agile development ensures rapid response to changing requirements.

Q: Are certifications available?
A: The product meets automotive-grade standards and can provide certifications such as CE, ISO, and E-Mark.

Q: Are sample tests supported?
A: Yes. Samples can be provided for performance verification and vehicle integration testing.

Q: Does it support full vehicle system integration?
A: Yes. Integration with the vehicle control system is possible via CAN communication.

Innovations in Vehicle Heating: The HVCH QA01 Liquid Heater Series Revolution

1. The heater is equipped with built-in diagnostics and self-monitoring capabilities, allowing for quick and accurate troubleshooting.
2. It can be easily integrated into existing battery systems without major modifications or disruptions.
3. The Battery Coolant Heater is engineered to withstand voltage fluctuations and surges, ensuring stable and reliable coolant temperature control.

Product Introduction

Experience the revolution in vehicle heating systems with the HVCH QA01 Liquid Heater Series, a specialized interior heater designed to regulate heating in large vehicles with unparalleled efficiency. Leveraging modern technology, this heater can modulate its performance seamlessly, offering a dependable solution for the automotive industry.

Specification:

Product Features:

Ø Unparalleled Water Resistance

Whether traversing muddy trails or enduring relentless rain and prolonged high temperatures, the HVCH QA01 Series excels with its remarkable waterproof characteristics. Certified with an IP 67 rating, it assures resistance against water and dust, standing as a testimony to our commitment to quality.

Ø Stepless Regulation of Performance

Our high-voltage coolant heater, with its proven track record of serving thousands of vehicles over three years, manifests superior performance regulation. By modulating water outlet temperature or controlling the peak heat output and power usage, it promises efficiency and customer satisfaction.

Ø Robust Dual Self-Protection System

In the event of electrical anomalies like short circuits or overloads, the heater's dual protection system springs into action, offering mechanical and electronic shields. Additionally, we have fortified the high-voltage circuit with current fuses and high-voltage relays, ensuring a secure operational environment.

Ø Uncompromised Separation of Water and Electrical Components

We have ingeniously mitigated the contradiction between heat transfer efficiency and the stringent insulation requirements of a DC 3500 V system. This technological innovation has facilitated the widespread adoption of our 870V products in heavy dump trucks since 2021, setting a new industry standard.

Ø Intelligent PTC Thermistor Heater

Harness the power of PTC heating technology, characterized by dynamic power adjustment without exceeding the threshold temperature. This feature guarantees operational reliability and energy efficiency, eliminating the need for additional control elements.

Application:

For a secure and comfortable journey in diverse climatic conditions, vehicles need to be primed for operation from the outset. The HVCH QA01 Liquid Heater Series, with its power output ranging from 15 to 25 kW, meets the diverse heating requirements of large vehicles efficiently.

Our Exceptional Services

Direct supply, bypassing agents and reducing costs.

Attractive discounts on bulk orders; we also welcome trial orders.

24-hour response time to your inquiries.

Competitive and reasonable pricing.

Strong manufacturing capabilities, ensuring product reliability.

Dedicated to meeting your demands with utmost commitment.

Competitive Edge

Ensures safety and reliability.

OEM solutions custom-designed to your specifications.

Stable and dependable performance.

Waterproof properties coupled with excellent insulation.

Exceptional resistance to dry burning.

A harmonious blend of high voltage, power, intelligence, and reliability.