50-300 HP   580 psi  127-812 cfm


Oil-Free, Water Cooled, Fixed/Variable Speed

Reciprocating Air Compressors

We provide reliable and high-performance air solutions for the PET bottling, food and beverage industries requiring high compression.

 Advantages 

• Compact structure, easy to install and assemble.

• Takes up less room than other products in its class, providing maximum oil-free air capacity in minimum space.

• Wear due to friction is minimized. This positively affects maintenance times and costs.

• Stainless water separator increases corrosion resistance.

• Soft start prolongs component life.


 General Features 

• Reciprocating compressor providing 100% oil-free industrial air

• Electric motor protection to prevent overload

• Water-cooled design for high energy efficiency and ability to work in severe conditions

• Energy-saving Load/Unload System for efficient operation

• Integrated electrical system for user-friendly operation

 Electric Motor

• IE3 efficiency-class electric motors

• Special loadless start system and automatic discharge system for loadless start

• Long life with low RPM thanks to 6 pole feature


 Compressor Block

• Water jacketed cast iron cylinders and bottom heads

• Specially designed high-speed stainless steel concentric valves

• High-strength cast iron oil sumps

• Dynamically balanced high-strength forged steel crankshaft and cast iron

• Special aluminium alloy pistons and forged steel connecting rods


  Cooling System

• The intercoolers and aftercoolers use stainless steel pipes for more efficient heat transfer and better corrosion resistance.

• The coolers are designed to pass air through the pipe and water through the body wall.

• The compact design of the pipe-type coolers ensures easy maintenance and very efficient cooling

 Electronic Control

• Advanced, high-definition, user-friendly 7” colour touchscreen display (HMI)

• High speed, robustly built industrial type PLC infrastructure

• Encrypted Access Protection system with various levels of authorization

• Display of relevant data on the screen clearly, trend graph recording and active monitoring

• Alarm History records last 100 alarms

• Ethernet / ModBus communication as standard

• Flexible programmable / expandable Input / Output structure

 50-300 HP   580 psi  127-812 cfm

TECHNICAL  SPECIFICATIONS

Model Working Pressure Capacity Motor Connection Dimensions (in) Weight
psi bar cfm m³/min HP/kW Length Width Height Ibs
PET Master 50 580 40 127 3,6 50/37 1  1/4" NPT 144 66 94 12125
PET Master 75 580 40 194 5,5 75/55 1  1/4" NPT 144 66 94 12125
PET Master 100 580 40 261 7,4 100/75 1  1/4” NPT 133 95 95 14330
PET Master 125 580 40 321 9,1 125/90 1  1/4” NPT 133 95 95 14330
PET Master 150 580 40 410 11,6 150/110 2" NPT 165 78 110 16534
PET Master 180 580 40 477 13,5 180/132 2” NPT 165 78 110 16534
PET Master 220 580 40 579 16,4 220/160 2” NPT 165 78 110 17196
PET Master 270 580 40 752 21,3 270/200 2” NPT 167 87 112 20282
PET Master 300 580 40 812 23 300/220 2” NPT 167 87 112 20282

- Unit performances measured in reference conditions which are 1 bar absolute air Pressure, 0% relative humidity, 20°C inlet air temperature, 71°C thermostatic valve set temperature and use of Smartoil.
- Hertz reserves its rights to make changes in its products and specifications without prior notice.

 

TECHNICAL  SPECIFICATIONS (VSD)

Model Working Pressure Capacity Motor Connection Dimensions (in.) Weight
psi bar Minimum
cfm
Minimum
m³/min
Maximum
cfm
Maximum
m³/min
HP/kW Length Width Height Ibs
PET Master 75 VSD 580 40 145 4,1 194 5,5 75/55 1  1/4” NPT 144 66 94 12345
PET Master 125 VSD 580 40 240 6,8 321 9,1 125/90 1  1/4” NPT 133 95 95 14660
PET Master 180 VSD 580 40 357 10,1 477 13,5 180/132 2” NPT 165 78 110 17085
PET Master 220 VSD 580 40 434 12,3 579 16,4 220/160 2” NPT 165 78 110 17635
PET Master 300 VSD 580 40 611 17,3 812 23 300/220 2” NPT 167 87 112 20945

- Unit performances measured in reference conditions which are 1 bar absolute air pressure, 0% relative humidity, 20°C inlet air temperature, 71°C thermostatic valve set temperature and use of Smartoil.
- Hertz reserves its rights to make changes in its products and specifications without prior notice.