Professional Supply Stainless Steel 50 Inch Blower Exhaust Hammer Negative Pressure Fan

Product DescriptionNegative pressure fan uses the cooling principle of air convection and the negative pressure air exchange, air is discharged to outdoor which makes the indoor air pressure drop, indoor air becomes thinner, forming a negative pressure zone, then outdoor air, due to the air pressure difference compensates into the room, so that the indoor stuffy gas can be quickly forced to discharge outdoor.By this way,cooling effect can reach 90%-97%.Thus,negative pressure fan has the advantages of less investment, low energy consumption, significant cooling effect, etc.A galvanized sheet metal negative pressure fan is a common type of negative pressure fan whose housing is usually made of iron or other metal materials. It achieves the effect of ventilation and air exchange by drawing in air and discharging it outside. The galvanized sheet metal negative pressure fan is widely used in ventilation and exhaust in industrial production workshops, agricultural farming, commercial buildings, and other places.Product Parameters   Products304 stainless steel metal negative pressure fanModel sizeType 800Type 900Type 1000Type 1100Type 1220Type 1380Type 1530Body size80*80*35cm90*90*35cm100*100*35cm110*110*35cm122*122*35cm138*138*35cm153*153*40cmFan blade diameter650mm750mm900mm1000mm1100mm1250mm1400mmBlade rotate speed616rpm616rpm513rpm513rpm427rpm427rpm427rpmMotor speed1400rpm1400rpm1400rpm1400rpm1400rpm1400rpm1400rpmAir volume(m³/h)22000270003000034000370004450055700Noise level(db)≤70≤70≤70≤70≤70≤70≤70Input power370w370w550w750w1100w1100w1500wVoltage220v/380v220v/380v220v/380v220v/380v220v/380v220v/380v220v/380v  Detailed Photos   Installation Diagram  Our AdvantagesThe galvanized sheet metal negative pressure fan under Ruilin products has the following advantages:1. Low noise: Compared with other air purification equipment, Rui Lin's galvanized sheet metal negative pressure fan has a low operating noise, which will not affect people's normal life and work.2. Energy saving and environmental protection: Rui Lin galvanized sheet metal negative pressure fan adopts low power pure copper motor, which is stable and reliable and can significantly reduce energy consumption and operating costs, and also has the characteristics of energy saving and environmental protection.3. Easy to maintain: The simple structure and removable parts of the galvanized sheet metal negative pressure fan make it easy to carry out daily cleaning and maintenance and prolong the service life.4. Reliable quality: Rui Lin galvanized sheet metal negative pressure fan, with thickened hot dip galvanized shell, pure copper motor, large air blade, invisible heavy hammer, and high-quality rubber belt, has reliable quality, strong wind power, good quality, and high-cost performance.Company Profile   Rui Lin Ventilation EquipmentZhuji Ruilin Ventilation Equipment Co., Ltd, located in the historical site of Yue (state) with the richest Yuyue culture, is a professional and efficient enterprise with complete set of high-tech equipment, covering automatic decoiler machine,  New CNC Bending Machine, laser cutting machine, as well as advanced louver forming machine.Established in 2013, Ruilin Ventilation has gone through ten years of struggle with over one hundred employees working together in the spirit of pragmatism and dedication to excellence.To date, Ruilin Ventilation has owned 15 new professional assembly lines, with a daily production capacity of up to 600 sets of brand-new upgraded machines. Additionally, advanced production equipment provide strong support for product quality. With strong production capacity, Ruilin Ventilation has continuously broken through growth barriers. Its high-quality negative-pressure air fan, complete standard accessories, and continuous stable supply have achieved great advantages in application fields and won recognition from customers and industries.Ten year wind and rain roads makes quality assuranceCarefully selecting high-quality raw materials to ensure high-performance and high-quality products.Over one hundred employees work together to provide a one-stop production and processing service in the shortest possible time to achieve the maximum and best work. Customer satisfaction is our ultimate goal.Ruilin Ventilation is the best choice for negative-pressure air fan.  For ten years, Ruilin Ventilation have focused on quality production, earned customers' trust and have been leading in sales. Their one-stop service not only saves time and cost, but also provides professional and efficient ventilation equipment."Ruilin Ventilation will continue to create new professional negative pressure fans and accessories.  It will continue to courageously pursue perfect, and manufacture advanced equipment with the most professional tools, while satisfying customer demands with the highest level of efficiency in service.  After Sales Service1) The whole chiller for 1 years2) Compressor brands vary according to model and actual needsD