exhaust fan heavy weight balance

Specifications:
Model specifications blade mm Blades rotational speed rpm Motor rotational speed rpm Air flow m3/h Total pressure Noise decibels Import power Rated voltage High mm Width mm Thick mm
DJF(a)-900 750 630 1400 28000 65 ≤65 370 380 900 900 400
DJF(a)-1000 900 610 1400 30000 70 ≤70 750 380 1000 1000 400
DJF(a)-1100 1000 600 1400 32500 70 ≤70 750 380 1100 1100 400
DJF(a)-1220 1100 460 1400 38000 73 ≤70 750 380 1220 1200 400
DJF(a)-1380 1250 439 1400 44000 56 ≤70 1100 380 1380 1380 400
DJF(a)-1530 1400 325 1400 55800 60 ≤70 1500 380 1530 1530 400
Material:
Box housing: Galvanized Steel, thickness: top frame: 1.0mm, bottom/left/right frame: 0.9mm.
Blade: Stainless Steel, thickness: 1.2mm
Shutter: Galvanized steel, thickness: 0.5mm.
Motor:
CCC certificate, Made in China.
380V, 50Hz, 3phase, RPM: 1400r/min. IP55, Insulation :F grade
Brand： LaoYiTe, Lima or according to customer request.
Blade No.: 6pcs
Belt: Made in China, SANLUX brand, with belt tension
Certificate: CE certificate
Note:
1) This is designed by our Italian engineer, who has many years experience of exhaust fan.
2) There are two drop hammers on the inner corner of fan, which have an auxiliary force to help the wind open the shutters.
3) The concave convex blades are designed according to the wind theory, avoid damage of air flow. That is better than the usual panel fan.