Semi-hermetic hydrocarbon compressors: HG HC-series

  • Overview
  • Software
  • Related applications
  • Related solutions
  • Learning

BOCK® hydrocarbon compressors: The natural choice

Hydrocarbons are gaining ground as a natural refrigerant alternative in applications like supermarket refrigeration and chillers. Danfoss BOCK®'s hydrocarbon compressors are based on the HG well-known platform, and offer long-term reliability and safety for system manufacturers, users, and investors.

Our specialized HC compressors come with safety modifications and are optimized for hydrocarbon use. However, please note that only trained experts should operate them, adhering to safety measures and an agreement on hydrocarbons as a refrigerant (BOCK Art. No. 09996).

Features and benefits of hydrocarbon compressors:

Optimized total cost of ownership (TCO): cost-effective HC compressor version available, including non-ATEX option

Highest efficiency: achieve maximum efficiency for your operations

Sustainable solution: embrace an eco-friendly approach with hydrocarbon compressors

Holistic design: specifically tailored for hydrocarbon applications

Reliable long-life design: benefit from over a decade of experience in various applications

Wide & safe operating range: the market's largest reciprocating HC range offers versatility and safety, even in special applications

Differences to a standard HG compressor

The HC compressor program encompasses 7 model sizes with 25 capacity stages from 5.4 to 281.3 m³/h (50 Hz). They are optimized for all hydrocarbon requirements and varies from the standard HG-series:

  • Oil sump heater (necessary)
  • Thermal protection thermostat (recommended)
  • Special oil charge
  • Durable driving gear for demanding applications with hydrocarbons
  • Electronic motor protection
  • INT69 G enclosed for installation in the switch cabinet

ATEX compressors

Safe compressors for explosive atmospheres: BOCK®s ATEX/IECEx compliance

First European manufacturer to offer ATEX/IECEx compliant compressors. These components are essential for equipment operating in explosive atmospheres, adhering to stringent safety standards.
Our reliable semi-hermetic gas-cooled HG compressors serve as the foundation for applications in potentially explosive environments, backed by our quality management system compliant with EN 80079-34, meeting ATEX and IECEx requirements.
Read more about ATEX compressors

Looking for spare parts?

BOCKSHOP Spare parts catalog


The online spare parts catalog allows you to find the right spare parts and accessories for BOCK compressors and units with just a few clicks. 



Compressor selection tools - VAP

The VAP tool is ideal for finding the appropriate compressors or units for stationary applications. By inputting the required refrigerating capacity and operating conditions, the tool will display compatible components right away. In the VAP tools you will also find additional details about the suggested compressors.

Related applications

Related solutions


Join the CO₂ Technology Training at our Training Center in Frickenhausen

On-site CO₂ Basic training with the tour of the training application, available in English and in German.

Gain a good awareness knowledge about CO₂ technology and register to one of our face-to-face courses. A complete transcritical supermarket cooling system, incl. heat recovery, air conditioning, parallel compression and ejector is available at our training center in Frickenhausen.