In the growing market of energy-efficient home appliances, heat-pump dryers are becoming the preferred choice for consumers seeking low energy consumption, stable performance, and a quieter laundry experience. Behind every reliable heat-pump dryer is a precisely engineered airflow system—and the DC blower fan plays a critical role in enabling efficient hot-air circulation.

This case study focuses on Chungfo’s application of the HTC17032D24M blower fan in a well-known brand’s 5KG professional heat-pump dryer, showcasing our engineering capabilities, customization experience, and manufacturing expertise.

1. Market Background: Why Heat-Pump Dryers Demand Better Airflow

Compared with traditional vented or condenser dryers, heat-pump dryers rely heavily on efficient air circulation. Their performance depends on:

Stable airflow for heat-exchange efficiency

Adequate air pressure to push hot air through layered fabrics

Low energy consumption

Long-life operation under warm and humid environments

Low noise for home-use comfort

Selecting the right blower is essential for achieving these goals. The HTC17032D24M was optimized specifically for this purpose.

2. HTC17032D24M — Technical Highlights for Heat-Pump Systems

Key specifications:

Model: HTC17032D24M

Voltage: 24V

Speed: 3800RPM ±10%

Current: 1.43A ±15%

Airflow: approx. 40 CFM

Air Pressure: approx. 60 mmAq

Bearing: Ball Bearing

Options: PWM, FG or RD wire customization

Airflow 40 CFM — optimized for 5KG dryer design

Ensures constant circulation for the heat-pump evaporator and condenser.

60 mmAq pressure — strong penetration through fabrics

Improves drying efficiency by maintaining consistent warm-air movement across clothing layers.

Ball bearing structure — built for long-term operation

Stable performance under high-temperature, long-duration cycles.

Custom wire functions — enhanced smart control

Depending on customer requirements:

PWM for intelligent speed control

FG for real-time monitoring

RD for system failure detection

3. Engineering Process: What Makes Chungfo a Trusted Supplier

  1. Air-duct matching and dynamic simulation

  We provided multiple prototype configurations to match the compact air-duct design of this 5KG model, including:

  Speed curve testing

  Noise comparison

  Impeller structural optimization

  Material fatigue evaluation

  Final configuration: 3800RPM for best balance of airflow, efficiency, and noise.

  2. Long-duration and high-temperature tests

  We conducted:

  1000-hour continuous test at 60°C

  High-humidity accelerated aging

  Transportation vibration simulation

  Motor endurance tests

  All data met the performance criteria required by the client.

  3. Tailored production for international models

  Some markets required intelligent control functions, so we produced variants equipped with PWM/FG wiring to align with local energy-saving standards.

 4. Performance Improvement After Integration

  Once integrated into the dryer’s system, the customer reported:

  8–12% faster drying time compared with older blower versions

  1.5–2dB lower noise

  Improved overall energy efficiency

  Reduced failure rate in service feedback

  The HTC17032D24M is now one of the preferred blower models for their upcoming heat-pump product line.

5. About Chungfo

Founded in 2000, Guangdong Changfeng Technology Co., Ltd. (Chungfo) specializes in the design and manufacturing of AC cooling fans, DC cooling fans, and blower cooling fans. Our products are widely used in home appliances, industrial equipment, energy systems, and ventilation fan.

With 25 years of experience, we combine automated production, strong R&D capabilities, and strict quality control to deliver stable, reliable airflow solutions to customers worldwide.

6. Conclusion

Heat-pump dryers continue to expand globally, and precise airflow control is the key to their efficiency. The HTC17032D24M blower provides the strong, stable performance needed for modern energy-saving dryer systems. Chungfo will continue supporting global brands with professional, customized, and highly reliable fan solutions.