Precision Air Movement for Demanding Industries

GTM fans are built around electronically commutated (EC) motors that reach IE5 efficiency levels — moving the same volume of air with up to 50% less energy than conventional AC drives. Integrated speed control, soft-start and precise demand matching reduce running costs and CO₂ over the entire service life, comfortably exceeding EU ErP thresholds.

Each impeller is developed with CFD simulation and validated on our in-house performance chamber to DIN EN ISO 5801. Aerofoil blade profiles, optimised hub geometry and tight running clearances deliver high static efficiency and low specific fan power.

GTM controls noise at the source — swept blade geometry, balanced rotating assemblies and resonance-tuned housings minimise both broadband and tonal noise. Every fan ships with measured sound power data so specifiers can predict in-situ acoustics with confidence.

Sealed, maintenance-free bearings rated for L10 lifetimes beyond 40,000 hours, corrosion-protected housings, and IP54 to IP66 ingress protection for the harshest environments. Every rotating assembly is dynamically balanced to ISO 21940.

Our application engineers size and select fans against your real duty point, recommend the optimum impeller and motor combination, and develop bespoke variants — special voltages, ATEX rating, coatings or dimensions — for OEMs and demanding projects.

Quality management certified to ISO 9001:2015, with CE, VDE and RoHS conformity and full technical documentation. Each fan is run-tested, electrically safety-checked and serialised for traceability before it leaves Stuttgart.