AVL’s direct drive low-speed motors are engineered specifically for forced draft cooling towers and run as gearless solutions. Designed for long lifespans of up to decades, our direct drive motors deliver consistent performance with minimal service effort.
Synchronous motors with permanent magnets are an option upon request. Our focus on low-speed and high-efficiency motors eliminates the need for gearboxes and oil, while ensuring no wear and minimal maintenance.
Designed Without Complexity
Specifically designed for Cooling Towers with Forced Draft, without complexity
Low maintenance & long lifetime (bearing lifetime up to 110,000 operating hours, regreasing interval 3 years / 15,000 operating hours). Our thousands of installations are durable and operate quietly.
Sustainable Design
Our designs exclude gearboxes, demand no oil and we avoid leaks in installing future-proof machines.
Proven performance – thousands installed globally!
End-To-End Partnership
We take responsibility for the full development process, from end to end, and see our customers as partners throughout the lifecycle – from design to delivery and service. This commitment frees up your internal engineering capacity and allows you to focus on your core business. (learn more)
Only Tested and Reliable Units Leave Our Factory
Each motor will be tested thoroughly by our team. All functionalities, specifications, and quality standards must be met before delivery. We make no compromises in quality.
| Direct Drive Motors for Cooling Towers - Induction Dual Speed Motors | PMH 40-290D | PMH 45-180D | PMH 75-180D | PMH 90-180D | PMH 110-180D | PMH 125-180D |
| Power kW | 40 / 5 | 45 / 6 | 75 / 9.4 | 90 / 11.3 | 110 / 13.8 | 125 / 16 |
| Torque Nm | 1308 / 327 | 2361 / 635 | 3964 / 1003 | 4661 / 1173 | 5701 / 1429 | 6484 / 1668 |
| Speed rpm | 292 / 146 | 182 / 90 | 181 / 90 | 184 / 92 | 184 / 92 | 184 / 92 |
| Frequency Hz | 50 | 50 | 50 | 50 | 50 | 50 |
| Voltage V | 400 | 400 | 400 | 400 | 400 | 400 |
| Connection | YY / Y | YY / Y | YY / Y | YY / Y | YY / Y | YY / Y |
| Efficiency % | 86 / 68.5 | 88 / 73 | 84.8/ 66.5 | 88.4 / 73.1 | 89 / 74.3 | 88.2 / 71.6 |
| Power factor | 0.66 / 0.31 | 0.69 / 0.34 | 0.6 / 0.29 | 0.63 / 0.3 | 0.66 / 0.31 | 0.63 / 0.31 |
| Mass kg | 1150 | 2180 | 2300 | 3050 | 3150 | 3280 |
| Mounting | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 |
| Cooling | Air IC 48 | Air IC 48 | Air IC 48 | Air IC 48 | Air IC 41 | Air IC 41 |
| Degree of protection | IP 54 | IP 54 | IP 54 | IP 54 | IP 54 | IP 54 |
| Standard | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 |
| Direct Drive Motors for Cooling Towers - Induction Motors for VFD / Converter Power Supply | PMH 40-290I | PMH 45-180I | PMH 55-190I | PMH 75-190I | PMH 90-180I | PMH 110-180I | PMH 125-180I | PMH 200-108I |
| Power kW | 40 | 45 | 55 | 75 | 90 | 110 | 125 | 200 |
| Torque Nm | 1314 | 2389 | 2765 | 3763 | 4766 | 5811 | 6620 | 17714 |
| Speed rpm | 290 | 180 | 190 | 190 | 180 | 181 | 180 | 108 |
| Frequency Hz | 24.7 | 24,6 | 25,7 | 25.9 | 24.5 | 24.5 | 24.5 | 18.3 |
| Voltage V | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
| Connection | Y | Y | Y | Y | Y | Y | Y | Y |
| Efficiency % | 89.8 | 89,2 | 91,9 | 91.6 | 92 | 92.9 | 91.9 | 92.6 |
| Power factor | 0.85 | 0,87 | 0,83 | 0.88 | 0.87 | 0.84 | 0.85 | 0.82 |
| Mass kg | 1100 | 2130 | 2300 | 2560 | 2940 | 3100 | 3280 | 6415 |
| Mounting | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 | Vertical IM V2 |
| Cooling | Air IC 48 | Air IC 48 | Air IC 48 | Air IC 48 | Air IC 48 | Air IC 48 | Air IC 41 | Air IC 41 |
| Degree of protection | IP 54 | IP 54 | IP 54 | IP 54 | IP 54 | IP 54 | IP 54 | IP 54 |
| Standard | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 | IEC 60034 |
What began in 1947 as an R&D institute for electric rotating machines as a state-owned company in the Czechoslovak Republic, transformed into an independent business named VUES Brno, s.r.o., in the early 1990s. Since 2021, we have been fully integrated into AVL list GmbH, proudly shaping the future of a new era of electric motors, generators and other rotating machines.