Lift division

PA PA USA PAVE HEAT EXCHANGERS COOLERS FILTRATION CARTS
PA PA USA PAVE HEAT EXCHANGERS COOLERS FILTRATION CARTS

Heat exchangers |  Air-oil coolers

Description

Heat exchangers

General characteristics

  • SEIM air-oil heat exchangers are extremely efficient in cooling the oil in the oil-hydraulic circuits that they are installed in. The core of the exchanger is composed of a highly reliable and silent SEIM three screw pump.
  • The oil is cooled with air produced by a blower installed directly on the shaft protruding out from the motor. Technical characteristics:
    • high self-priming capacity, thanks to the screw pump
    • low noise, thanks to the special design of the blower for 50 and 60 Hz, and use of the screw pump
    • low overall cost, thanks to numerous accessories, either pre-installed in the NSC series, or DIY in the NEG series
  • Option:
    • safety valve on the pump (std. valve calibration = 6 bar)

HOW IT WORKS:

  • The heat exchanger can be installed directly on the supply control unit or installed on a remote station.
  • When the temperature of the oil in the tank reaches the set limit, the pump starts making the oil circulate through the radiator.
  • This process lowers the oil temperature based on the conditions of the site where it is installed.

Technical Specifications

Technical Data Sheet
Pump flow rate between 25 and 66l/min (6.6 to 17.4 USGPM)
Blower flow rate between 600 and 2500 m3/h (between 353 and 1471 CFM ) *
Blower flow rate up to 6 bar (87 psi) *
Operating temperature between 20° and 90°C (between 68° and 194°F)
Operating speed 2700 to 3200 rpm NEG03
1450 to 1750 rpm NEG03, NEG06, NEG10, NEG14
Average noise level 67 - 71 dB(A) at 2900 rpm based on blower
Recommended Filtration 60 micron max on suction side
(non-abrasive pollutant) ISO4406 19/16 - NAS 10
Available voltage 50 hz: 400 -230 - 440 three-phase
230 single-phase
Speed 60 hz: 380 -220 - 480 -575 - 460- 440 three-phase
220 single-phase

*
Lower pressure limits are determined by fluid viscosity and drive speed.
For the functional features of the single models, consult the specific tables.
For functional features that differ from the above, contact our sales department.

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