Complete Lines Drive HRS Business Growth

Not Just Heat Exchangers: Complete Lines Drive HRS Business Growth

February 28, 2024 | Categories: Food - Opinion Piece | by

HRS is well known as a leading supplier of heat exchange, but our clients are increasingly looking for turnkey solutions for their thermal processing challenges. In response to this, HRS has a team solely dedicated to the development of complete systems, which account for more than half our total sales by value.

In terms of volume, component orders remain our core business; however, the number of full systems we are commissioned to produce is increasing every year and now accounts for the majority of turnover.
Most of the demand for complete systems comes from the food and drink industry, but we are also seeing a strong interest in systems for wastewater treatment, as well as specialist applications such as anaerobic digestion and zero liquid discharge.

Bespoke System Design

Unlike other heat exchanger manufacturers who only sell standard heat exchanger designs, each HRS product is designed to the client’s individual needs. While this can increase the development and production period, it also means that our customers get the right system first time around.

Types of Systems

HRS can offer our clients a range of modular or turnkey system solutions, such as our Asepticblock pasteurizers and sterilizers which combine heat treatment, aseptic filling and clean-in-place capabilities in a single system, and which can be skid-mounted for easy installation. Other systems for the food and drink sector include deaeration systems, our I Series of ice crushers and melters, direct steam injection sterilisers (DSI Series) and dedicated CIP and SIP systems. We also provide trial systems for conducting product and processing trials before committing to a final production solution.

For the energy and environmental sectors, we produce a number of concentration and evaporation systems (as well as solutions for Zero Liquid Discharge), and specific systems for anaerobic digestion and wastewater treatment including Digestate Concentration Systems (DCS), Digestate Pasteurization Systems (DPS) and Biogas Dehumidification Systems (BDS).


HRS supplied a complete sterilisation and aseptic filling solution for a leading specialist in fruit product processing and logistics located in Murcia, Spain. With the capacity to process up to 300,000 litres of fruit juice per day, the main products include concentrated juices such as lemon, orange and mandarin, grape and peach, and some mixed fruit juices.

The first part of the system sterilizes the product in an HRS Thermblock sterilizer featuring a multitube heat exchanger. The product is pre-heated in a buffer tank to 48°C, then passes through a deaerator to mitigate oxidization which would spoil the product. It is then heated to pasteurization temperature (around 92°C) for one minute to kill any bacteria, before being cooled to 31°C to preserve quality.

The sterilized product is then placed into sterilized bags within drums using an HRS Aseptic filler. The two-headed design ensures continuous operation, with the product placed into 200 litre bags inside a drum at a rate of 12,000 litres/hr (60 drums/hr). Once full, the drums are then then transported to final customers across Europe and the United States.

The client’s Plant Manager comments:

The HRS aseptic plant was designed and optimized to exactly meet our needs and we are very satisfied with it. It’s simple to use and manage, does exactly what it was designed to do and is extremely reliable. We have had no problems with it since it was installed. The engineering involved is excellent and I would definitely recommend both the system and HRS as a company.