Rising To The Challenge

September 7, 2022

The evolving test requirements for Electric Vehicle battery packs means test specifications are constantly being pushed to new boundaries. JTS has risen to these challenges with our range of containerised test chambers. With extensive experience in the design and build of reliable high-performance bespoke environmental test chambers we provide solutions to large multi-national companies, both here in the UK and overseas.

JTS has an ethos of working closely with customers and this proved invaluable with a recent design brief for a containerised test facility. The build specification required a temperature controlled test chamber, an office area for engineers and an area for refrigeration plant and the customer’s chiller.

Our design utilises a 30ft tunnel container with an additional personnel door for access to the office. A side window introduces natural light to the office and louvre panels facilitate a flow of fresh air through the plant area.


The 2m x 4m test area provides a controlled environment over a range of +20°C to +40°C, with capacity for test loads dissipating up to 10kw. The ceiling mounted air handling unit is fitted with a fan speed controller, allowing the customer to control the airflow within the chamber. A bunded anti-slip floor enables safe containment of any spilt test fluids, up to a depth of 100mm. Access for loading is via double doors at one end of the container and a fire rated personnel door gives access from the office.  An array of IP65 rated 230V and 400v sockets are fitted either side of the test area for customer use.

For safety a 60 minute fire rated bulkhead is incorporated between the chamber and the 2m x 3.5m office area. Laminated insulation panels line this area and an aluminium anti-slip floor gives a clean bright working environment. Further enhancements include air conditioning, continual fresh air purge and emergency LED lighting.


The plant room at the end of the container houses a Bitzer Ecolite air cooled condensing unit and the cooling plant for the air conditioning system. Free space is also allocated in this area for the customer’s test load chiller and their Statx fire suppression system.

There will never be one design that fits all scenarios of testing. From containers to walk in rooms, floor standing to bench mounted, our wealth of experience and continuous product development enables JTS to engineer bespoke solutions.

June 18, 2026
With EO Day on Friday 19th June, we're proud to be putting JTS on 'The UK is Owning It Map' . 📍 The I-COM team have created this interactive map, where each pin represents a business that has chosen a different way of doing things. Every pin is a statement: we're here, we're employee-owned, and we're proud of it. We're delighted to stand alongside so many other employee-owned businesses across the UK, celebrating the power of shared ownership and the people who make it possible. At JTS, we're proud to be part of a growing movement that's putting people at the heart of business success. #EODay #EmployeeOwnership #TheUKIsOwningIt #ProudlyEmployeeOwned #JTS
June 10, 2026
At JTS, Health and Safety is a responsibility shared by everyone across our employee owned business here in Wales. As manufacturers of environmental test chambers, we regularly handle large and heavy equipment, making safe manual handling practices and properly trained forklift personnel an essential part of our day to day operations. National Forklift Safety Day is an important reminder of the role trained operators play in keeping our workplace safe, efficient, and compliant - helping reduce risk, prevent injury, and ensure materials are moved safely and correctly. A huge thank you to our forklift drivers and wider team for continuing to put safety first every day. Because good safety culture protects people, products and productivity. We’re also pleased to share that two of our workshop engineers are currently completing forklift operator training this week, further expanding our team of qualified forklift drivers 👍
May 11, 2026
Taking ACTION for Mental Health. At JTS, we believe that building high-quality environmental test chambers starts with something even more important—supporting the people behind them. As an employee-owned company, our people are at the heart of everything we do. This Mental Health Awareness Week (11–18 May), we’re embracing this year’s theme: ACTION. For us, ACTION means: Checking in with colleagues—not just about work, but how they’re really doing Creating a culture where it’s okay to talk openly about mental health and how we are feeling. Taking breaks, setting boundaries, and supporting wellbeing every day Encouraging each other to reach out—because no one should feel alone. Small actions can make a big difference. Together, we can create a workplace where everyone feels supported, valued, and heard. Let’s take ACTION—this week and every week. #MentalHealthAwarenessWeek #MentalHealthMatters #TakeAction #EmployeeOwned #WorkplaceWellbeing #MHAW26 #MentalHealthFirstAid
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