Riscaldatore PTC HVCH20KW22KW24KW 400V600V800V 8.5kg per Autobus, Camion, Macchinari Edili, Riscaldamento Cabina BTMS RBS, EVLINK

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.

Introduction

As the global economy grows, so does energy consumption, leading to increased greenhouse gas emissions and environmental damage. Electric vehicles (EVs), especially those powered by lithium-ion batteries, aim to reduce these emissions. To function optimally, batteries must be maintained within a suitable temperature range. Heat pipe-based thermal management systems have gained attention for their efficient passive heat dissipation. These systems help keep battery packs at ideal operating temperatures, ensuring uniformity and minimizing the risk of thermal runaway. This article explores the applications and advantages of EVLINK high-voltage coolant heaters in electric commercial vehicles.

Function and Purpose of Vehicle Heating

Cabin and battery heating are essential for safe and comfortable driving. Besides maintaining cabin comfort and vehicle temperature, HVAC systems must meet regulatory requirements, such as UN R155 for cybersecurity. EVLINK is the first domestic manufacturer of high-power, high-voltage heaters to receive R155 certification. Its products excel in defrosting and dehumidification and promote core high-power, high-voltage heater technology globally.

Performance Metrics

Key performance requirements for EVLINK heaters include:

• Maximum efficiency;
• Cost reduction and efficiency improvement;
• Quick response and good controllability, customizable based on customer needs;
• Compact, lightweight design with good shock resistance;
• High reliability, with complete test reports available;
• Sustainability and environmental friendliness.

Electric Heater Concept

Before developing new high-voltage heaters, EVLINK analyzed existing technologies like wire-wound resistors and positive temperature coefficient (PTC) heating. The new heater has been optimized in four key areas:

• Efficiency: Delivers required heat output across a wide range of coolant temperatures and voltages;
• Quality and Size: Designed to be as small and light as possible;
• Usability and Cost: Avoids the use of rare earth materials and lead, ensuring competitive product costs;
• Safety: Helps reduce electrical and heat-related risks.

PTC elements exhibit nonlinear characteristics, with resistance decreasing at lower temperatures and sharply increasing as temperatures rise, leading to self-limiting current. EVLINK's new high-voltage heater incorporates these properties for an efficient and safe heating solution.

Applications and Prospects

EVLINK's 5kW-35kW high-voltage electric heaters (HVCH, PTC heaters) are suitable for various vehicles. The company is committed to advancing electric vehicle technology through innovative and high-quality products, providing optimal heating solutions for global customers and supporting green travel and sustainable development goals.

EVLINK high-voltage coolant heaters have achieved excellent performance in the domestic market and are expanding internationally, providing efficient, safe, and environmentally friendly heating solutions for global electric commercial vehicles. If you have any questions or needs regarding our products, please feel free to contact us.