Product Name: Hanging Industrial Exhaust Fan (DJF(b)-1-30") Model NO.: DJF(b)-1-30" Certification: CE Installation: Ceiling Application: Industrial Material: metal Remote Control: With Remote Control Blades: Stainless Steel(6 Pieces) Bearings: imported Double-Row Bearings Type: Air Cooling Fan Timer: Without Timer Power: >300W Power Supply: Electric Speed: 3 Speed Trademark: SANHE BRAND Transport Package: Standard Paper Carton Specification: 30", 35", 40", 43", 50", 55" Origin: China(Mainland) Product Description 1. Fan blade is made of Krupp stainless steel by punch forming, no dust, attractive and durable. Special blades shape design ensure large air volume, no deformation, no broken, keep air volume same all the way. Thickness 1.2mm, surface finish BA grade. 2. Fan belt pulley is made of high strength aluminum-magnesium alloy by die-casting which reduce the weight of blade impeller complete, high corrosion resistance. Special three reinforced ribs pulley design. Blast-sanding treatment for attractive appearance, eliminate internal stress to improve its own rigidity and stability, never broken.3. Fan bearing adopts imported double-row bearing with special waterproof design, water can't enter. High strength, lower noise, maintenance free and long service life.4. Fan blade are adjusted by intelligent dynamic-balance tester, ensure the fan smooth running, lower vibration, less noise, increase stability. 5. Hot-DIP galvanized blade support and safe net ensure never rust. Fan frame with 4 hoist rings, convenient for installation and angle adjustment, ensure excellent performance. 6. Belts are Japanese Mitsubishi brand, ensure the long service life, maintenance free. 7. Fan galvanized round frame with zinc-coated of 180g/sqm, increase zinc-coated layer, to ensure never rust. 8. Complete new CNC production line improved fan quality up to top grade, aesthetic appearance.Model specificationsDiametre blades(mm)Blades rotational speed(rpm)Motor rotational speed(rpm)Air flow (m³ /h)Total pressure (Pa)Noise decibelsInput power(W)Rated voltage(V)Height(mm)Width(mm)Thickness(mm)DJF(b)-1-900(30" )75063014002800065≤ 65370380900900420DJF(b)-1-1000(35" )90061014003000070≤ 7075038010001000420DJF(b)-1-1100(40" )100060014003250070≤ 7075038011001100420DJF(b)-1-1220(43" )110046014003800073≤ 7075038012201220420DJF(b)-1-1380(50" )127043914004400056≤ 70110038013801380420DJF(b)-1-1530(55" )140032514005580060≤ 70150038015301530420