A compact direct-drive permanent-magnet VSD screw compressor for correctly sized workshops and light industrial systems where compressed-air demand changes during the working day.
The Tanair TAN-S 7.5 VSD is a 7.5 kW rotary screw compressor with permanent-magnet variable-speed control. Its current published output is 32 CFM (0.9 m³/min) at up to 10 bar on a 415V, 50 Hz, three-phase supply.
It is aimed at applications where compressed-air demand rises and falls throughout the day. In those conditions, variable-speed control can reduce unnecessary unloaded running compared with a fixed-speed compressor that would otherwise continue operating at full motor speed between changing demand periods.
| Specification | TAN-S 7.5 VSD |
|---|---|
| Motor power | 7.5 kW (10 HP) |
| Published airflow | 32 CFM / 0.9 m³/min |
| Maximum pressure | 10 bar |
| Electrical supply | 415V / 50 Hz / 3 phase |
| Drive | Direct-drive permanent-magnet VSD |
| Cooling | Air cooled |
| Motor protection | IP55 |
| Published dimensions | 92 cm × 60 cm × 86 cm |
| Published weight | 260 kg |
The inverter adjusts motor speed as compressed-air demand changes, reducing output when the site needs less air and increasing it again as demand rises.
On a suitable variable-demand system, this can reduce the time a compressor spends running without producing useful compressed air at full output.
That depends on the tools and machines that can run at the same time. A 32 CFM compressor should not automatically be described as suitable for a particular number of workshop bays or users without calculating simultaneous air demand.
The TAN-S 7.5 VSD requires a 415V, 50 Hz, three-phase supply. The final cable, protection, isolator and installation should be designed from the exact compressor data and the site's electrical conditions by a suitably competent electrician.
A floor-mounted compressor still needs the rest of the compressed-air system to be considered. The correct receiver, dryer and filters depend on the demand profile and required air quality.
The direct-drive arrangement reduces belt-related maintenance, but the compressor still needs planned servicing in line with its operating hours and manufacturer requirements.
The old article stated that many workshops achieve payback within 12–24 months. That cannot be treated as a general rule. Payback depends on the purchase and installation cost, electricity tariff, annual operating hours, current compressor efficiency and how much demand actually varies.
A meaningful comparison should use real operating data wherever possible.
The current published output is 32 CFM (0.9 m³/min) at up to 10 bar.
It requires a 415V, 50 Hz, three-phase supply. The final cable, protection and isolation should be selected from the exact machine data and site conditions.
Potential savings up to 35% are referenced on the product page, but that should not be treated as guaranteed. Actual savings depend on load profile, pressure, operating hours, system leakage and correct compressor sizing.
Possibly, but the number of bays is not a sizing method. Add the real airflow requirements of tools and machines that can operate simultaneously and compare that demand with the compressor's usable output.
No. Direct drive removes belts and belt tensioning, but oil, filters, separator elements, coolers and other routine service items remain.
Rotary screw compressors are commonly used in high-duty applications, but suitability should be confirmed against the manufacturer's instructions, site conditions and actual operating profile rather than relying on a blanket continuous-duty claim.
Yes. Tanair offers a complete 7.5 kW VSD package, and separate receivers, dryers and filtration can also be selected according to the system requirement.
Use the live product page for current pricing and availability rather than relying on a fixed price inside an advice article.
Tell us your current compressor, required pressure, operating hours and which tools or machines run together. We can help assess whether the TAN-S 7.5 VSD is correctly sized and what receiver, dryer and filtration may be needed around it.
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