Ingersoll Rand | PETStar- 4

PETStar- 4

PETStar- 4

When unsurpassed performance and reliability are required, the PETStar-4 line of 4-Stage Reciprocating Air Compressors answers the challenge. Robustly designed and configured in a horizontally opposed cylinder configuration, the PETStar-4 arrangement virtually eliminates vibration with a minimal foundation requirement. By utilizing four stages of compression, the PETStar-4 is capable of providing unsurpassed compressor efficiency. Lower stage compression ratios reduce the cylinder operating temperatures and extend the life of valves, rings and packing. To simplify installation, all PETStar-4 units feature a heavy duty welded steel sub base and are available with a matching air treatment component package. Whether you require a compressor for in-line molding or capacity to support a large production operation, there is a PETStar-4 package to meet your needs.


  • Non lubricated 100% oil-free water-cooled design
  • Four-stage balanced opposed layout eliminates unwanted vibration
  • All double-acting, heavy-duty class-40 cast iron cylinder construction
  • Sleeve type main and connecting rod bearings
  • Endurable 16,000 hour rated piston rings & packing
  • Anticorrosion coating on all system air piping
  • Crankshaft-driven main oil pump
  • Electrical-driven prepublication system
  • Large cast-in water jackets for dimensional stability under extreme conditions
  • Conservatively designed valves selected to provide extra-long life
  • Lowest interstate temperatures and pressures
  • Intercoolers/after coolers selected for optimal 9°C(15°F) approach temperature
  • Distance pieces feature two compartments, ensuring lubricant is isolated from cylinders
  • Three-step capacity control 0%-50%100%
  • Advanced CMC main compressor controller with 1,000-event logging capability built-in
  • IP-55 TEFC, 6-pole main drive motor
  • Star-delta main motor starter
  • All components constructed in accordance with World Standards and stamped as applicable
  • Available in Basic or Intermediate package configuration with optional piped and mounted dryer and receiver
  • Available rod drop position wear indicators


© 2016 Ingersoll Rand. All rights reserved.