Model: NL-FJSM-24
The problem
Commercial fans now reach 750 or even 1050mm with 2kW motors and 5kW fan demand power. A bench that runs smoothly at room temperature tells nothing about the field: in cold stores, outdoor units and fresh-air systems, low-temperature embrittlement, humid condensation and stiffened bearing grease rewrite the entire life curve. One large fan fills half a room, so manual sample swapping cannot keep up, and cycling temperature without a real load never exposes the coupling between blade creep and motor temperature rise.
Capability
The chamber offers 24+4 dual-specification capacity: at least 24 stations for 500-750mm fans and at least 4 stations for 1050mm fans; the main body ships as two frames that are joined on site, so it passes standard elevators. Temperature spans -40 to 70C settable with loaded uniformity within 2C and fluctuation plus or minus 0.5C, and the full -40 to 70C transition takes under one hour. Humidity spans 20 to 98 percent RH programmable with uniformity +2/-3 percent RH, running programmed high-low humid cycles or fixed-point operation. Sample capacity covers motors to 2000W and 2000rpm, fans to 5000W demand power, 1050mm diameter and 20kg. Motor mount fixtures adjust over a 7-30cm hole pitch on the floor and side walls, and fan hubs are interchangeable. A 20kW duct heater plus low-temperature refrigeration compressor system feeds even cycling air to every station. The anti-fog window exceeds 250x400mm; door frames carry anti-condensation heaters with high-temperature seals; refrigerant is environmentally friendly with an imported original compressor; seams are welded without gaps and an internal drain removes condensate. Noise stays below 75dB on a 380V/50Hz supply. Overspeed, over-torque and over-power conditions trigger smart monitoring with automatic stop, and test data auto-saves with report generation by serial number.
Key specifications
- Application: accelerated life of large commercial fans and motors
- Stations: 24 for 500-750mm fans; 4 for 1050mm fans
- Temperature: -40 to 70C, loaded uniformity within 2C, fluctuation within 0.5C
- Transition: full -40 to 70C swing under 1 hour
- Humidity: 20 to 98 percent RH programmable, uniformity +2/-3 percent RH
- Motor samples: to 2000W and 2000rpm
- Fan samples: to 5000W demand power, 1050mm diameter, 20kg
- Test duration: 1-9999 hours settable
- Window: anti-fog window at least 250x400mm
- Fixtures: motor mount pitch 7-30cm adjustable, interchangeable fan hubs
- Climate system: 20kW duct heater plus low-temperature refrigeration compressor
- Cabinet: anti-condensation door frame, seamless welded liner with drain
Applications
Whole-machine life verification at commercial fan plants; low-temperature humid assessment of fan assemblies for cold stores, fresh-air systems and outdoor units; matching trials of large-diameter fans at motor plants; accelerated life commission testing at third-party laboratories
About the manufacturer
Guangdong Endurance Electronic Equipment Co., Ltd provides non-standard customization, drawing confirmation, factory acceptance, on-site installation and commissioning, operation training and long-term technical service; 12-month warranty and long-term spare parts supply. Tel: 0760-88500902 / 13416787649. Web: en.zsnaili.com.