We stock an extensive selection of parts and spares for all of our key brands. Please get in touch to find out more or get availability and a quote.
Get in touch to get the latest prices and delivery times for any re-manufactured unit, spare part or accessory.
We stock an extensive selection of re-manufactured products, some of which are detailed here. Please get in touch to find out more or get availability and a quote.
Southern Sales and Services provide refrigeration equipment and parts for a very wide variety of industrial applications. Please select from the options here to find out more about how we can help.
Get in touch to to discuss your specific application requirement and talk to our experts about our range of efficient cooling and climate control solutions.
We take on consultation and custom design work, this can include the build, installation and commissioning of the finished equipment. Whatever your cooling requirement, we can help you find a solution.
We are ideally set up to offer quality solutions to our customers for all types of applications. This is partly due to our experience but also because GEA condensing units and compressors play a big part in the design of equipment for custom cooling applications.
Rest assured. We have designed a significant number of bespoke solutions and are commissioned by a variety of businesses to produce solutions for their engineers to install.
Southern Sales & Services are the UK’s largest distributor of Bock mobile compressors offering both open and semi-hermetic types. Based in the south of England we have enjoyed our Bock dealership for over 20 years and intend to uphold our much respected knowledge and first class performance for at least another 20 years to come.
Today, air conditioning systems for buses and trains are required to provide optimum comfort for drivers and passengers. The highest possible energy efficiency for the vehicle and the best environmental compatibility are priorities. The focus is on heating the vehicles using environmentally friendly and emission-free heat pumps. The weight of the refrigeration system is important for the air conditioning of buses, trains or in transport cooling. When it comes to compressors, emphasis is placed on robust and smooth-running lightweights that also make a decisive contribution to increasing the efficiency of the overall system.
Thanks to their proven design and constant innovation, the mobile aluminum compressors from BOCK make an important contribution to environmental protection and ensure a good climate in buses and trains as well as in transport cooling.
If you have an enquiry that you think that we can help with, then please do not hesitate to contact us by phone or through our online quick contact form at the bottom of the page.
The Bock StarCO2mpressor HR40 & HR60, the new generation of mobile CO2 compressors for electric bus and railway air conditioning and heating, launched at the world’s largest bus trade fair in Brussels last year, is available now from Southern Sales.
The core of the StarCompressor is a radial piston technology which is specially designed for transcritical use with the natural refrigerant CO2 (R744) and enables a very compact system design with numerous technical and constructive innovations. This makes the new mobile CO2 compressor perfectly suited for space-saving roof installation in electric buses and railways,” says Ulrich Frey. “This includes the lowest overall height in the industry of only 220 mm and the light weight of only 83 kg, which is at least 25 percent below the standard compressor in this performance class.”
Further advantages of the StarCompressor: Energy-saving heat generation even at low outside temperatures down to -20 °C without power-consuming electric or environmentally harmful fuel-operated auxiliary heaters. This increases range of an electric bus by up to 40 percent. And all this with reliable, quiet running thanks to multiple bearings and safe operation even at large angles of inclination. “The innovative technology of the StarCompressor has already successfully proven its practical suitability in extensive field tests with renowned manufacturers,” explains Frey.
With the new StarCompressor, Bock is expanding its portfolio of compressors for natural refrigerants with an ecologically and economically efficient technology for the future electromobility market.
Download StarCompressor brochure
The cylinders of the radial piston compressor are arranged in a star configuration around the crankshaft. This results in an extremely compact compressor design that is perfectly matched to the natural refrigerant CO2 (R744) and which is perfect for mobile use.
The innovative “star” drive design of the StarCO2mpressor opens new possibilities in electric bus and train air conditioning: space-saving roof installation thanks to the industry’s lowest overall height and lowest weight. Energy-saving and environmentally friendly heat generation with a CO2 heat pump without auxiliary heater even at outside temperatures down to -20 °C.
CO2 is a natural refrigerant, environmentally friendly, inexpensive, compared with fluorinated refrigerants. It is colourless, non-flammable and non-toxic. CO2 is the basis for determining the CO2 equivalent of refrigerants.
R744 has a GWP value of 1 and is excluded from the so-called “Phase-Down-Zenario” (F-Gas-Regulation). From a weight of 5 tonnes CO2 equivalent, the leak test of a refrigeration system is mandatory. Therefore, the leak test is not required for refrigeration systems with R744 below a charge of 5 tonnes. If CO2 is released into the environment during service work, there is no need for costly refrigerant recovery.
Demanding factors are the high operating pressure of the refrigerant, the low critical point, dry ice formation when the temperature falls below the triple point and the very high standstill pressures. The requirements and component selection of the refrigeration system must be considered accordingly.
It’s good to have an expert on hand so if you need more information about CO2 cooling, please get in touch.
1) +10°C/ 40°C (100 bar) / 10 K
2) -20°C / +25°C (80 bar) /10 K
Bock vehicle compressors of the FK range are the result of many years of experience in the domain of mobile cooling systems. 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.
Download mobile compressor brochure
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. Unsurpassed lightweight, compact and robust design with a large speed range – these are just a few of the outstanding features of this unique product range with 2, 4 and 6 cylinder compressors. Tailor-made to the individual application with many different design versions. 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
VAP compressor selection FK Former Type compressors
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. A wide variety of designs can be tailored to suit individual requirements. For low temperature applications, an optimized TK model is available.
More information about the FK range of GEA Bock mobile compressors for transport refrigeration (e.g. technical/performance data, drawings, spare part lists, operating limits) can be found in the compressor selection tool VAP via the following link:
Unique FK valve plate system specially developed for air-conditioning!
Due to special requirements by customers, there is a demand for additional fastening options on the compressor housing – particularly where there is little installation space available, as is the case in many Euro 6 buses. This has been achieved by means of the K1 special housing, which creates a higher level of stability thanks to the compressor being fastened directly to the vehicle motor.
Special features of the K1 housing:
The all-aluminum lightweight design of the HGX34 and HGX22 compressors compressors is ideal for mobile refrigeration and air conditioning applications. Compressor weight and compressor efficiency are critical. Thanks to the lightweight aluminum design, the mobile semi-hermetic compressors are 40% lighter than the standard compressor. System manufacturers in the field of bus-/railway air- conditioning and transport cooling are thus offered new possibilities.
BOCK mobile compressors are available in 2 and 4 pole versions. The 2-pole version of the HG34 offers a significant increase in performance with identical dimensions.
The compressors are available with a terminal box in reduced height and are more compact than the standard version. BOCK mobile aluminum compressors meet the highest fire protection class HL3 of EN45545 for railroad applications.
Based on the HG standard compressors with their outstanding advantages and features, versions with 2-pole drive motor are available with up to 70% increased cooling capacity with the same external dimensions. This is made possible by doubling the speed at the same mains frequency. Together with the robust and reliable BOCK K valve plate, this results in the optimal solution for bus air conditioning and many other mobile applications.
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
Download semi-hermetic compressor brochure
Suction gas cooled aluminum reciprocating compressors from BOCK, based on the classic HG compressor series in grey cast iron, are specially designed for mobile refrigeration applications due to their lightweight construction. They are approx. 40% lighter and have a reduced overall height, making them particularly suitable for roof mounting on vehicles.
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
The K valve plate was specially developed by BOCK for mobile air-conditioning applications. Due to the use of annular lamellas, it is designed for higher loads and is extremely robust against speed and pressure fluctuations as well as the effects of liquids. It has already been used hundreds of thousands of times in bus air conditioning and is the worldwide benchmark for quality and reliability.
Worldwide proven valve design with reed lamellas clamped on one side. The valves are made of high-quality, impact-resistant spring steel. Limited load capacity compared to the K-valve plate at high speed and exposure to liquids.
Electronic motor protection INT69 G Functions:
NOTE: In March 2021, BOCK was separated from the GEA Group. BOCK now trades as an independent company: BOCK Gmbh.
We continue to provide all of the BOCK products formerly produced under the GEA Group. As always we will aim to provide excellent advice and product support and can help with any enquiries you have regarding the transition or any products affected.
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