Menu SEMI-HERMETIC COMPRESSORS - SINGLE AND TWO-STAGE GAS AND AIR-COOLED COMPRESSORS: THE HG AND HA SERIES FROM BOCK For more efficiency and durability in compressor and refrigeration system. For highest quality standards and reliability. The BOCK reciprocating compressors of the HG and HA series are always developed according to the latest technical standards and with a view to the environment, resource conservation and sustainability. The HG series stands for semi-hermetic gas-cooled reciprocating compressors, the HA series stands for semi-hermetic air-cooled compressors. BREADCRUMB Home Products Stationary Applications BOCK HG AND HA SERIES BENEFITS AND COMPONENTS Here is a brief overview of the main advantages of our optimised HG and HA series with the most important components: On the following pages you will find everything you need to know about HG and HA reciprocating compressors. OPTIMISED COMPRESSOR COMPONENTS FOR EVEN MORE PERFORMANCE AND COMFORT Optimised power unit and maintenance-free oil strainer OPTIMISED POWER UNIT Reliable emergency operation Resistance to damage caused by insufficient lubrication Robust crankshaft design Low friction, wear resistant plain bearings Low oil throw Aluminum connecting rods with high-strength piston pin bearings MAINTENANCE-FREE STRAINER Easily removable oil strainer for easier maintenance and increased availability Reliable oil supply Electronic motor protection Digital capacity control SEMI-HERMETIC COMPRESSORS UL RECOGNIZED THE BOCK UL-HG COMPRESSOR SERIES FOR USA AND CANADA The new UL-HGe series is a stand-alone series that incorporates all the advantages of the suction gas cooled HG series, which has been proven for decades, and... Read more ALUMINUM COMPRESSORS FOR MOBILE USE COMPRESSORS FOR BUS, RAILROAD, AIR CONDITIONING AND TRANSPORT COOLING OF THE HG-SERIES Suction gas cooled aluminum reciprocating compressors from BOCK, based on the classic HG compressor series in grey cast iron, are specially designed for mobile... Read more SEMI-HERMETIC COMPRESSORS, TWO-STAGE GAS-COOLED HGZ BOCK HGZ-COMPRESSOR SERIES Based on the HG series, BOCK has developed a two-stage compressor series for extended use in low temperature cooling. The HGZ compressor series provides a... Read more SEMI-HERMETIC COMPRESSORS, SINGLE-STAGE - AIR-COOLED - THE BOCK HA COMPRESSOR SERIES The semi-hermetic HA series from BOCK was specially developed for low temperature cooling and prevents excessively high final displacment temperatures. The... Read more SEMI-HERMETIC COMPRESSORS GAS-COOLED THE BOCK HG COMPRESSOR SERIES, SINGLE-STAGE & GAS-COOLED The HG series is based on a classic, suction gas-cooled compressor technology according to the latest state of the art. Smooth running, service-friendliness,... Read more gascooled compressor UL-recognized - catalogue PDF | 8.25 MiB Download FOOTER MENU Imprint Privacy policy QUESTIONS? WE WILL HELP YOU. Tel. + 49 7022 9454-0 info@bock.de bock.de Cookies BOCK use cookies to provide you with an optimal website experience. These include cookies that are necessary for the operation of the website and the management of our corporate business targets, as well as those used purely for anonymous statistical purposes, convenience settings, or to display personalized content. You can decide which categories you wish to allow. Please note that not all website features may be available depending on your settings. For more information, see our Privacy Statement. Necessary Statistics Show description Confirm Confirm all