Efficient drying – oil-free

The Kaeser i.HOC is the epit­o­me of effi­cien­cy and reli­a­bil­i­ty. The inte­grat­ed rotary dry­er for screw com­pres­sors pro­vides a reli­able, steady sup­ply of oil-free com­pressed air, with pres­sure dew points of up to minus 30 °C, even under unfavourable con­di­tions. It even saves ener­gy for good mea­sure. Com­bined with the largest range of oil-free rotary screw com­pres­sors, the FSG series, the prod­uct line is now complete.

With its patent­ed i.HOC (inte­grat­ed heat of com­pres­sion dry­er), Kaeser has suc­ceed­ed in launch­ing a des­ic­cant dry­er that utilis­es 100% of the avail­able hot com­pressed air from the sec­ond com­pres­sion stage to direct­ly regen­er­ate its des­ic­cant. The advan­tages of this full-flow regen­er­a­tion make the i.HOC par­tic­u­lar­ly effi­cient and streets ahead of the com­pe­ti­tion. This guar­an­tees sta­ble pres­sure dew points, even in unfavourable con­di­tions, such as low final dis­charge pres­sure, high ambi­ent tem­per­a­tures or reduced util­i­sa­tion. The inte­grat­ed Sig­ma Con­trol 2 con­troller also adjusts the i.HOC to any change in oper­at­ing con­di­tions, for exam­ple vari­a­tions in com­pressed air flow, work­ing pres­sure or ambi­ent temperature.

Dew point regulation ensures stable pressure dew points

For par­tic­u­lar­ly sen­si­tive com­pressed air appli­ca­tions, Kaeser offers option­al pres­sure dew point reg­u­la­tion for all FSG series, oil-free rotary screw com­pres­sors with an inte­grat­ed i.HOC. Should the cool­ing con­di­tions dete­ri­o­rate, per­haps due to ris­ing ambi­ent tem­per­a­tures, the dew point reg­u­la­tion reg­is­ters the result­ing pres­sure dew point increase and boosts the dry­er’s regen­er­a­tion poten­tial accord­ing­ly. This ensures that the pres­sure dew point is opti­mised. Thus, the dew point reg­u­la­tion is ide­al for air cooled com­pres­sors. It off­sets the dai­ly and sea­son­al fluc­tu­a­tions in the cool­ing air tem­per­a­ture, there­by achiev­ing con­stant pres­sure dew points.

Three in one – compressor, compressed air dryer and heater

Apart from the i.HOC, the water-cooled FSG boasts a high­ly effi­cient, inte­grat­ed heat recov­ery sys­tem, which helps to use the avail­able com­pres­sion heat twice: once in the i.HOC to dry the com­pressed air and again via the inte­grat­ed heat recov­ery to heat process or hot water up to 90°C. An auto­mat­ic, fail-safe cool­ing sys­tem pro­tects the com­pres­sor – and thus the com­pressed air sup­ply – from exces­sive­ly high water temperatures.

Savings have never been easier

The high­ly inte­grat­ed design of the FSG i.HOC saves both space und costs for an exter­nal dry­er pipework, with­out com­pro­mis­ing on access for ser­vice tech­ni­cians. Sav­ing mon­ey has nev­er been easier.

Kaeser Kom­pres­soren at the Han­nover Messe 2019: Hall 26, Stand C51