Description
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Highlights at a glance
RDH Series ventilator can be devided into two direction of rotations,left-hand rotation(LG) and right-hand rotation (RD);
DH Series ventilator can be made in four air-outlet directions:0°,90°,180°,and 270°;
There are three types of RDH ventilators, type R,type K and type Z;
Constructon of Product:Scroll,Impeller,Frame,Bearings,Shaft,Outlet Flange;
High Performance of Ventilator
V-Belt Drive Installation
Belt Tenstion
Bearing Lubrication
About this supplier
LONGWELL is a globally recognized fan manufacturer,specializing in high-performance EC/DC/AC fans,blowers,and motor systems for HVACR applications.With over 20 years of export experience and millions of units produced annually,we deliver reliable airflow solutions to OEMs in more than 30 countries. Our extensive product range includes centrifugal fans,axial fans,cross-flow fans,forward curved blowers,and ECM motors widely used in AHUs,FFUs,purifiers,heating systems,and industrial ventilation.We are certified to ISO9001,ISO14001,BSCI, CE,UL/ETL,FCC,and RoHS standards,ensuring full compliance across global markets. As an innovation-driven company,Longwell integrates aerodynamic design,CFD simulation,and custom engineering to meet specific client needs.Backed by advanced R&D labs,flexible manufacturing,and a global sales network across 8 regions,we respond quickly with tailored fan solutions built for efficiency,durability,and compliance.
Company overview
Customization capabilities
We can provide you with professional OEM/ODM services.All-copper motor,thickened housing,large air volume,low noise
Packaging & shipping specifications
Trade show participation
Competitive advantages
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FAQs
whats your production capacity?
We are capable to produce over millions pcs fans and motors annually.
what your advantages of technologies in fans and motors.
we makes very quiet noise , and good air performances of fans. We are capable to do fans and motors matching and make them optimized to achieve best air performances and lowest noise with CFD simulation
Are you a manufacturer or trading company?
Yes, LONGWELL is a professional manufacturer which is the specialist in HVACR fans,motor and components for the applications of air conditioner,air ex-changer coolers,heaters,floor convectors,sterilization puriferair,air purifiers,medical purifiers,and ventilation,energy industry,5G cabinet …
whats your main machines and capacity.
For the motors: Wehave owned CNC machines 18 units &4 auto-robots . capacity :500k pcs annually winding machine 20 units, capacity 500kpcs annually magnetization machine 6 : capacity 500kpcs annually Balance machine 22 units : 500k pcs annually boring mill : 2 units high temp failure detection :3 chambers 500k pcs annually For the fan: Injection machine :12 units , capacity: 2millions pcs annually Welding machine : 10 units Balance machines :14 units
whats your quality and certificates
Quality thing is big than ever for Longwell . we always focus on quality thing . 100% inspection before delivery makes almost zero complains . MTTF is less 500/million . LONGWELL products can pass CE,ETL UL certificates
Where is our main market.
North America , Europe.some of longwell customers are the top 1 in their application. In case you require any further information or have technical queries, you can contact us directly at : Emial:sales@longwellfans.com
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