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.

Thermal Positive Temperature Coefficient Ptc Heater 6-10kW DC 690V

1. It complies with international standards and certifications, ensuring adherence to quality and safety requirements.
2. The PTC heater is backed by comprehensive technical support and customer service to ensure a seamless user experience.
3. It is suitable for a wide range of high-voltage applications, including industrial, commercial, and utility sectors.

HVCH KB01 Series is an extension of KA series. Some customers don't need its controller. We increase the power of KB up to 12kW. There is no circuit board inside, only temperature controller , temperature sensor, and high voltage current fuse. The advantage of KB is that the price is very affordable,some customers use it for braking energy recovery.

HVCH KB01-Series could quickly, consistently,powerfully and reliably heat the vehicle or the battery. The compact device ensures a constantly high heat output of 6kW-12kW and allows for flexible use in a power range of 350 to 850 Volts.

Specification:

Product Features:

Ø Excellent Water Resistance.

During the actual operation, muddy roads and wet rainy days and long playing in high temperature, all require our high voltage coolant heater excellent waterproof performance.IP 67 Water and dust proof reports can be provided.

Ø Completely Separation of Water and Electricity

Water and electricity is completely separated.Different from other manufacturers,we solve perfectly the contradiction between the heat transmission efficiency with the Insulation requirement of DC 3500 V.Benefits from this technical improvement, our 870V (nominal voltage) products have been mass produced and used in heavy dump trucks in 2021.

Ø PTC thermistor heater with self - controlled constant temperature.

PTC water coolant heater come with all advantages of the PTC heating technology. Thanks to the PTC effect, the heating elements dynamically adjust their power without exceeding a maximum temperature. High operational reliability and energy efficiency without any additional switching elements.

Application:

To guarantee a safe journey even in challenging climate conditions, vehicles must be ready for operation right from the start.

Sufficient power of 25 to 35kw can meet the heating, defrosting, battery heating and other needs of large vehicles. Users can adjust the power according to the demand, control the power consumption. We also provide customized service, which can be adjusted according to customer requirements, such as voltage, power, etc

Our service:

1. We can supply you directly, save the agent fees and reduce your cost;
2. Big order comes with big discount, trial orders are also welcome;
3. Reply your enquiry within 24 hours;
4. Price advantages:reasonable and competitive;
5. We are manufacturer and possess strong strength;
6. Do our utmost to meet your demands.

Competitive Advantage:

1. Safety and reliability
2. OEM for your design
3. Stable performance
4. Water-proof, excellent insulating property

5. Excellent dry burning resistance
6. High Voltage,High Power,High Intelligence,High Reliability