Eberspacher Sutrak Compressors for Mobile Applications

Southern Sales & Services now part of the Eberspächer Sütrak network, offer cooling solutions in passenger travel for the world’s leading manufacturers of bus air-conditioning systems for more than 50 years, and it is the AC competence center for bus air conditioning and bus heating in the Eberspächer Group of Companies.

Eberspächer Sütrak regards itself as a system partner of bus manufacturers for complete thermal management in the vehicle. Eberspächer Sütrak enjoys a globally oriented sales and service network with its presence in all core markets of the bus industry. The combined expertise of Eberspächer and Sütrak in the areas of heating and cooling makes it possible to meet the needs of our customers reliably and effectively, keeping with the motto “complete thermal management for buses worldwide from a single source.”

Bock FK Compressors – In Touch with Eberspächer Sütrak

Bock vehicle compressors in the FK series are the result of decades of experience in mobile refrigeration. Particularly when it comes to bus air-conditioning, they are the standard of all renowned manufacturers namely Eberspacher Sutrak.

The unsurpassed light, compact, robust design and wide rpm range are only some of the outstanding features of this unique product range of 2-, 4- and 6-cylinder compressors. 

One special innovation constitutes the so-called K version with a unique valve plate system for the toughest demands in mobile air-conditioning.

More information about the FK compressors for bus and rail air conditioning (e.g. technical/performance data, drawings, spare part lists, operating limits) can be found in the compressor selection tool VAP via the following link: VAP compressor selection FK compressors

Bock HG Compressors – In Touch with Eberspächer Sütrak

Based on Bock compressors of the Pluscom series with their outstanding advantages and features, light construction models made completely of aluminium are available for mobile use.

Especially for use in air conditioning systems in electrically-operated buses and rail air conditioning systems, Bock also offers a special lightweight aluminium version of the semi-hermetic HG compressor for mobile applications.

These compressors weigh approx. 40% less than comparable standard compressors and are available with 7 displacement levels.

More information about the HG Alu compressors (e.g. technical/performance data, drawings, spare part lists, operating limits) can be found in the compressor selection tool VAP via the following link: VAP compressor selection HG Alu compressors

Based on Bock compressors of the Pluscom series with their outstanding advantages and features, more powerful models with 2-pole drive motor are available for mobile use.

More information about the HG 2-pole compressors (e.g. technical/performance data, drawings, spare part lists, operating limits) can be found in the compressor selection tool VAP via the following link: VAP compressor selection HG 2-pole compressors

Bitzer Roadstar – In Eberspächer Sütrak

The BITZER ROADSTAR range consists of the extended range of 2-cylinder compressors and the optimised 4- and 6-cylinder compressors 4UFC(Y) to 4GFC(Y) and 6UFC(Y) to 6NFC(Y).

They were designed for special requirements in vehicle applications and have overcome the challenges of all climatic zones and the conditions of mobile applications.

The special attributes

• Highly compact design
• Low weight
• 4- and 6-cylinder models with varying outputs, identical fixing points and identical shaft heights
• High efficiency
• Proven valve plate system
• Drive via V-belt with electro- magnetic clutch. Other drive types are also available Wide speed range from 500 to 3,500 rpm

Recognized reliability in BITZER quality

• Improved serviceability
• Built-in oil collection chamber
• 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

Bitzer F400 – In Eberspächer Sütrak

Based on experience with the years of success of the 4UFC .. 4NFC compressor series, a compact and lightweight alternative was developed for bus air conditioning systems with low and medium outputs. With the new F400Y series, BITZER presents the next technical advance with unique benefits.

The special attributes

• Highly compact design
• Low weight
• High efficiency

Long service life thanks to high reliability in BITZER quality

• Highly smooth running thanks to dynamical mass compensation
• Low frictional losses thanks to the surface-hardened eccentric shaft, optimised piston geometry and the hard-chrome-plated piston rings
• Connecting rods with closed big ends with large bearing surfaces
• Axial fixed bearing on the driving side
• Minimal axial clearance – regardless of housing temperature or operating condition
• Dimensioning for extreme loads at high speeds
• Minimal oil carry over thanks to the internal oil separator