VARIABLE SPEED SCREW COMPRESSORS WITH COMPRESSED AIR TREATMENT SYSTEM (5.5-15 KW)

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Airpol KTPR and Airpol PRT series screw compressors with frequency converter and compressed air treatment system are designed by Airpol engineers using innovative technology and top quality materials.  They are an ideal source of dried compressed air for use in both large and small-scale industrial applications.  Airpol variable speed screw compressors are characterized by excellent performance, durability and energy efficiency, providing significant financial benefits. Equipping an Airpol PRT and KTPR screw compressor with a frequency converter results in changing the rotation speed and adjusting the compressor capacity to the actual demand for compressed air, which translates into reduced energy bills. An integrated refrigeration dryer and compressed air filters ensure premium quality compressed air.

KTPR series compressors are also equipped with a 500 l receiver. Such a compact solution saves space to locate the compressor, eliminates the costs that would be generated by the installation components and provides additional aesthetic value.  Our offer includes a wide range of equipment with different capacities and engine power. Our compressed air specialists will be happy to help you select the ideal unit for your application, taking into account the duty cycle and actual demand for compressed air.

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Model Capacity [m3/h]
0,65 MPa
Capacity [m3/h]
0,8 MPa
Capacity [m3/h]
1,0 MPa
Capacity [m3/h]
1,3 MPa
Capacity [m3/h]
1,5 MPa
Dimensions (LxWxH) [mm] Air receiver volume [l] Nominal motor power [kW]
Airpol KTPR 5 10 - 54 10 - 50 10 - 40 10 - 33 10 - 20 1920x660x1520 500 5,5
Airpol KTPR 7 17 - 73 17 - 68 17 - 57 15 - 47 13 - 35 1920x660x1520 500 7,5
Airpol KTPR 11 17 - 117 17 - 108 17 - 90 17 - 70 14 - 55 1920x660x1520 500 11
Airpol KTPR 15 52 - 162 52 - 150 52 - 120 17 - 96 17 - 85 1920x660x1600 500 15
Airpol KTPR D15 (napęd bezpośredni) 52 - 162 52 - 150 52 - 120 - - 1920x700x1645 500 15
Airpol PRT 5 10 - 54 10 - 50 10 - 40 10 - 33 10 - 20 940x660x1340 - 5,5
Airpol PRT 7 17 - 73 17 - 68 17 - 57 15 - 47 13 - 35 940x660x1340 - 7,5
Airpol PRT 11 17 - 117 17 - 108 17 - 90 17 - 70 14 - 55 940x660x1340 - 11
Airpol PRT 15 52 - 162 52 - 150 52 - 120 17 - 96 17 - 85 1100x720x1430 - 15

Airpol KTPR and Airpol PRT screw compressors equipped with a frequency converter and a refrigerated air dryer use variable speed drive technology. Our engineers designed these compressors with improved energy efficiency to ensure an efficient, high class air system and at the same time enable users to reduce their energy bills. The special drive and intelligent control system used in Airpol PRT screw compressors controls the compressor speed, which results in:

  • smooth regulation of compressor speed within the range from 20% to 100%,
  • adjustment of compressor capacity to actual consumption of compressed air,
  • energy savings up to 70% in comparison to compressors with traditional control.
    When the demand for compressed air is low, the motor in a variable speed drive screw compressor will run at reduced speed. This will result in lower electricity consumption. The motor frequency of the variable speed compressor will automatically increase when the demand for compressed air increases. This adaptation of compressor operation has measurable benefits in the form of lower electricity costs and less wear on compressor components, which extends compressor service life and reduces maintenance costs.
  • constant network pressure at a preset value
    The frequency converter control system tries to maintain the compressor motor rotation speed so that there is a constant pressure in the compressed air system at a preset value. When the network pressure decreases the inverter increases the rotational speed of the electric motor, which increases the capacity of the compressor, whereas when the pressure increases the rotational speed of the motor decreases.

High quality dried and filtered compressed air

The integrated air treatment ensures high quality process air and thus corrosion protection for the pneumatic equipment and the entire system. At the customer’s special request, we are ready to modify the configuration of filters to obtain air parameters that meet the specific requirements of the technological process.

The refrigerated air dryer and two compressed air filters are located in one casing together with the entire compressor unit. This eliminates the need for additional working space and the expense of installing a treatment system, which includes:

  • Pre-filter for high dust storage capacity (removes 99% of solid and liquid particles larger than 3 μm)
  • Refrigeration dryer – removes moisture from the compressed air up to the required dew point of +3ºC.
  • Fine filter – cartridge made of multilayer dense microfibre (removes 99% of solid particles larger than 1 μm and ensures that the residual oil content behind the filter does not exceed 0.1 mg/m3 ).

Intelligent microprocessor controller AIRPOL POWER CONTROL

The AIRPOL POWER CONTROL microprocessor controller designed specifically for use with Airpol screw compressors ensures efficient operation and safety of the entire system, as well as continuous monitoring of compressor operating parameters.  Extremely easy to use and intuitive, it offers a wide range of options: selection of operation modes, modification of various settings, observation of current compressor parameter values, status of operation time counters, energy consumption and many more. Additionally, in Airpol PRT screw compressors designed for pressures up to 10 bar, the Ultra Speed function activation enables the user to independently adjust pressure within the range of 6.5 – 10 bar and thus change compressor capacity. This is particularly beneficial in the case of temporary increased demand for compressed air.

High quality 

Airpol PRT screw compressors combine durability and reliability resulting from excellent design and high quality components. Airpol, using its extensive experience in compressor production gained over 60 years in the pneumatic industry, has developed solutions that combine the highest quality with low operating costs.

The applied ASU screw compression stage with optimised rotor profile, completely designed, manufactured and tested at Airpol, guarantees reliability and high compressor performance throughout its entire service life. Appropriately oversized bearings and adopted low tolerance parameters that we use during the whole process of screw stage production ensure their durability, long service life and high quality.

The electric motor with IE3 efficiency class is directly coupled to the screw stage via a flexible coupling. The result is loss-free energy transfer from the electric motor to the screw stage, reduced maintenance costs and high uptime.

A high-performance radial fan with higher compression ensures effective cooling throughout the entire life of the compressor. The high compression ensures an adequate and uniform flow of the ambient air drawn in through the cooler, even in the case of significant contamination. The fan is driven by a low-speed motor, which significantly reduces the sound emission level of the entire compressor

 

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