
4020 Series
- 24 VDC · speed-adjustable, low power
- High-speed compact cooling for tight enclosures
Jentech designs and manufactures DC/AC/EC axial fans, blowers, cross flow and centrifugal fans for energy storage, solar inverters, telecom, rail transit, automotive and medical equipment. One-stop customization from mold making to final assembly.
Trusted by Haier · Schneider Electric · FiberHome · GoodWe
Unlike trading companies, Jentech owns the whole production chain. We design the frame & impeller molds, develop the drive PCBA, wind the motors and assemble every fan under one roof — so custom samples arrive in days and quality is fully under our control.
Factory-direct models from 40 mm to 120 mm — with PWM speed control, FG tachometer and IP44–IP68 protection.




Need AC axial, blower or centrifugal models? We also supply AC fans, DC blowers, EC, cross flow & centrifugal fans — all RoHS / REACH compliant.
Request Full CatalogOutdoor cabinets run hot, wet and dusty — 24/7. Here is how Jentech fans keep ESS and PV systems reliable in the field.
Send us your heat load & enclosure size — our engineers recommend the model for free.
Get Free Selection HelpTrusted by leading equipment manufacturers
Fast sampling and solid quality. The IP68 fans passed our salt-spray and high-humidity tests on the first run — no revisions needed.
Their engineers helped us cut audible noise by 6 dB without losing airflow. Direct factory pricing made the switch easy to justify.
Tell us what you need — size, voltage, airflow, quantity. Your inquiry goes straight to our sales engineers on WhatsApp.
Fastest response — usually within hours
+86 133 2239 5911Send specs & drawings directly
tzy@jentech.cnVisits welcome by appointment
6F, Bldg 1, Hualangjia Industrial Park, No. 28 Tongfuyu Industrial Zone, Guanlan, Longhua District, Shenzhen, ChinaSend your requirements now — quote back within 24 hours.