Variable frequency drive controlled air compressors can provide significant savings in electrical energy costs if applied and operated properly. As one of the leaders in applying variable frequency drives to air compressors. Scales can provide a new unit or we may be able to outfit your existing compressor with a variable frequency drive. Since 1990, we have been adapting variable frequency drives to new and existing air compressor systems with great success. Using the latest in drive and control technology our design engineers can recommend a cost effective solution that can save you money and provide a rapid payback.