PTC Heater HVCH 2KW5KW7KW8KW 200V400V600V800V 3.7kg Bus Truck Construction machinery BTMS RBS Battery Heating Cabin Heating

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.

 
When public transportation agencies plan to replace traditional diesel buses with zero-emission electric buses, they must consider the impact of extreme weather conditions on the new fleet. Cold weather, in particular, significantly reduces the range of electric vehicles. EVLINK's high-pressure liquid water heater provides an efficient battery thermal management solution for electric buses, effectively enhancing vehicle range in cold climates.

Product Advantages

• Excellent Waterproof Performance: In laboratory humidity tests lasting 300 hours, EVLINK's high-pressure liquid heater performed exceptionally and passed third-party IP67 certification.
• Precise Temperature Control: With the ability to adjust water outlet temperature and maximum power, it provides high-precision temperature control and is also used in Tsinghua laboratories.
• Dual Safety Protection: Integrated mechanical and electronic safety measures effectively prevent potential hazards and ensure operational safety.
• Complete Electrical Isolation: A special thermal conductive structure makes the heater 95% efficient, far surpassing traditional PTC liquid heaters, providing critical safety assurance for electric vehicles.
• Innovative PTC Technology: The custom-designed PTC chip dynamically adjusts power output while maintaining the specified temperature limit, enhancing product reliability and efficiency.

Application Scenarios

EVLINK's high-pressure coolant heater is mainly used in the vehicle thermal management system, dynamically managing the vehicle's heat flow, including heating for the battery, motor, electronic control, and passenger cabin. This system effectively extends the range of electric vehicles in winter. Currently, major manufacturers in China have widely adopted EVLINK heaters, saving costs for vehicle manufacturers and providing suggestions and technical support for liquid heating.

Our Services

• Direct Procurement: Simplified procurement processes, offering better service and support than trading companies.
• Bulk Order Discounts: Significant discounts on large orders, completing 500 units within a month while ensuring quality and reliability.
• Quick Response: Priority handling of inquiries, guaranteed response within 24 hours, and dedicated heater technical specialist service.
• Competitive Pricing: Attractive pricing strategy ensures high-quality products without exceeding your budget.
• Manufacturer Guarantee: Enjoy the quality and reliability guarantee of direct manufacturer procurement.
• Customer-Centric Service: Meeting your specific needs with customer satisfaction as the core mission.

Competitive Advantages

• Safety and Reliability: Products undergo rigorous quality inspections to ensure excellent safety performance and reliable operation in various scenarios.
• Customized Solutions: Utilize our OEM services to adjust according to your unique design standards.
• Consistent Performance: Known for its consistent performance, the product is a reliable partner in research projects.
• Weather Resistance: The product shows excellent resistance to harsh weather, providing outstanding insulation performance and anti-dry burn features, ensuring longer service life.
• High-Pressure High-Power Excellence: The heater represents the pinnacle of high-pressure and high-power capabilities, combining intelligence and reliability, giving it a significant competitive advantage in the market.

EVLINK's high-pressure coolant heater is a key component for the efficient and reliable operation of electric buses in cold climates, providing top-tier thermal management solutions for electric bus OEMs.
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