Riscaldatore PTC HVCH20KW22KW24KW 400V600V800V 8.5kg per Autobus, Camion,

Product Specification

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.

1. It offers flexible installation options, allowing for easy integration into existing heating systems or as a standalone unit.
2. The heater is constructed using high-quality materials, ensuring durability and long-term reliability even in demanding cabin heating applications.
3. It is resistant to vibration and mechanical stress, ensuring stable operation even in rugged environments.

The HVCH B Series emerges as an advanced interior heater, proficient in moderating water circuits within expansive vehicles, equipped with a feature that allows for stepless adjustment of performance based on necessities.

Efficiently, uniformly, and robustly, the HVCH B Series can elevate the temperature within a vehicle's interior, guaranteeing a persistent high thermal output of 20-24kW, and accommodating flexible utilization within a power bracket of 600 to 875 volts. The series is endowed with an integrated control module, facilitating infinite variability in thermal output. This can be achieved either by fine-tuning the water discharge temperature or by setting caps on the peak thermal output or energy expenditure. Additionally, it possesses CAN capabilities, enabling the conveyance of crucial operational data to the vehicle's systems through a smart diagnostic function.

Product Attributes:

• Exceptional Water Resistance

  During operational phases, such as navigating through muddy terrains, enduring rainy periods, and operating for extended periods in high temperatures, our high-voltage coolant heater manifests a top-tier water-resistant performance. Documentation for IP 67 water and dust resistance can be made available.

• Seamless Performance Regulation

  This function operates either by modifying the water outlet temperature or by restricting the utmost heat output or energy usage. Our High Voltage coolant heater, tested in thousands of vehicles over a span of three years, has consistently demonstrated superior quality, earning customer approval.

• Trustworthy Dual Self-Protection Mechanism

  Incorporating a dual protection strategy, including mechanical and electronic preventative measures, the system is designed to shut down during instances of short circuits, overloads, or overheated conditions. To bolster safety, we have implemented a high-voltage relay and a current fuse in the high-voltage circuit.

• Complete Water-Electricity Isolation

  Our design ensures an uncompromised separation of water and electricity, proficiently tackling the disparity between heat transfer efficiency and the insulation necessities of 3500 V DC. This innovation has propelled the mass production and implementation of our 870V (nominal voltage) products in heavy-duty dump trucks in 2021.

• PTC Thermistor Heater with Autonomous Temperature Regulation

  The PTC water coolant heater boasts all the positive attributes of PTC heating technology, where the heating components dynamically alter their power intake, never exceeding a pre-determined maximum temperature. This promises superior reliability and energy efficacy without necessitating additional switching elements.

Applications:

To ensure a secure commute even in the harshest climatic conditions, vehicles must be primed for operation from the get-go.

With a generous power capacity ranging from 15 to 25 kW, it caters to the diverse needs of large vehicles including heating, defrosting, and battery warming. Users are granted the liberty to adjust the power as per the demand, effectively managing power consumption. Additionally, we offer bespoke services, allowing alterations in specifications like voltage and power to suit customer preferences.

Our Services:

1. Direct dealings, eliminating agent commissions and minimizing your costs.
2. Substantial discounts on bulk orders, with a warm welcome to trial orders.
3. Prompt responses to your inquiries within a 24-hour window.
4. Pricing benefits: rational and competitive.
5. As established manufacturers, we wield substantial strength.
6. Dedicated to fulfilling your requisites to the greatest extent.

Competitive Advantages:

1. Assured safety and reliability.
2. OEM services to align with your design aspirations.
3. Unwavering performance stability.
4. Superior water-resistance and exceptional insulating attributes.
5. Remarkable resistance to dry burn.
6. High-voltage, high-power, smart functionalities, and heightened reliability.