Wholesales Hammer Type Push-Pull/Centrifugal/Shutter Cone/Ventilation/Axial Fan

Product Description Ventilation principle of push pull fan The main function of the push-pull fan is to cool and exhaust, so do you understand its ventilation principle?The pushpull fan exhausts the air outward, which makes the indoor air pressure drop and the indoor air become thinner, forming a negative pressure area. The air flows into the room due to the compensation of the pressure difference. In the practical application of industrial plant, the pushpull fan is installed on one side of the plant, the air inlet is on the other side of the plant, and the air is convective from the air inlet to the pushpull fan. In this process, the doors and windows near the pushpull fan remain closed, forcing air into the workshop from the door and window on the air inlet side. The air in line and orderly flows into the workshop from the air inlet, flows through the workshop, and is discharged from the workshop by the push-pull fan. Detailed Photos Product Parameters Modle                           specificationDiameter blades(mm)Blades rotational speedMotor rotational speed rpmAir flow     (m³/h)(Pa)                total pressureNoise decibelsImport power(w)Rated voltage(v)Height(mm)Width(mm)Thickness(mm)JMD-800(29'')71066014002200060≤60370380800800400JMD-900(30'')75063014002800065≤65550380900900400JMD-1000(36'')90061014003000070≤7075038010001000400JMD-1100(40'')100060014003250070≤7075038011001100400JMD-1220(44'')110046014003800073≤70110038012201220400JMD-1380(50'')125043914004400056≤75110038013801380400JMD-1530(56'')140032514005580060≤70150038015301530400 FAQ1.Are you trading company or manufacturer ?   We are manufacturer and produce by ourself.2.When can i get the quotation?   You will be able to obtain it within 24 hours once we get your inquiry.3.How about  your delivery time ?   We will finish the order within 15 days for 40ft container,if more we need negotiate with you.4.Do you provide samples? Is it free ?   Yes, we could offer the free samples for evaluation but do not pay the cost of freight.5.Can you accept OEM or ODM?   Yes, of course.                                               /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1