FR series

FR SERIES

Etalase : BITZER RECIPROCATING COMPRESSORS OPEN

A special version was developed for transport refrigeration systems on the basis of the proven 4UFC(Y) .. 4NFC(Y) compressors designed for vehicle air conditioning. This new series – 4UFR(Y) .. 4NFR(Y) – can be used with R404A, R507A and R22 (“R” = refrigeration) in a wide range of applications – medium to low temperature applications. With outstanding technical features made popular by the air conditioning models, these compressors offer high efficiency and reliability in BITZER quality.


The slimmest compressor in its class with a width of just 305 mm or 367 mm

Drive via V-belt with electro- magnetic clutch – other drive types are also available, application upon request

Wide speed range from 500 to 2,600 rpm

Disproportionately low increase in cooling capacity at high speeds

Optimised drive gear

  • Highly smooth running thanks to the 4- and 6-cylinder design and dynamical mass compensation
  • Low frictional losses thanks to the surface-hardened drive shaft and optimised pistons, as well as the hard-chrome-plated piston rings
  • Strengthened connecting rod geometry with large bearing surfaces