Case: MAKEEN Energy, India

One machine,
three checks

As LPG demand grows in India, so does the need for cylinder quality control that can keep pace. Developed by our teams in India and Denmark, the Statistical Quality Controller combines check weighing, leak detection, and pressure testing in one setup to support the needs of a fast-moving market.

India is one of the LPG markets seeing strong growth, and as demand rises, the need for efficient and reliable cylinder quality control grows with it. In this market, cylinders must meet clear legal requirements throughout their service life. Before a cylinder can return to service, it must go through checks such as pressure testing, leakage control, and weight verification. In addition, a defined share of cylinders must be selected for extra inspection before they are returned to distribution. For operations handling large cylinder volumes, quality control is therefore a vital part of daily work. This was the starting point for the Statistical Quality Controller, or SQC.

Developed in close collaboration between MAKEEN Energy India and our Gas Solutions team in Denmark, the SQC was created to match the demands of the Indian market while drawing on strong in-house com­petencies across both engineering and software. The result is a three-in-one machine that combines check weighing, leak detection, and pressure testing in one setup.

The machine is designed to support the inspection requirements that apply in India, where 10% of a truckload of 302 cylinders must be selected for additional inspection before being sent back into circulation. By bringing several key processes together in one machine, the SQC helps make these checks easier to manage in a busy operational environment.

Reprogramming the core

But the story behind the SQC goes beyond the mechanical design. From a software perspective, the project also marked new ground. Like the mechanical side of the machine, the standard software structure was originally individually sectioned modules, each with its own code. However, combining three inspection processes in one machine meant these modules could no longer work as isolated units. Instead, they had to operate in parallel.

To make that possible, our software team developed a completely new system for process allocation. This allowed parts of the standard setup to be reused, while creating a new software structure capable of handling several processes at the same time. It was a new challenge for the team, but one that resulted in a strong new foundation. With that groundwork in place, the parallel structure can also be applied to other solutions where it can help optimise operations.

Gateway to information

As standard, the machine comes with a digital data collection setup that can be connected to MAKEEN Gateway. This gives operators a clear overview of each step in the process. In the event of downtime, the system can show exactly where attention is needed, as all three functions are tracked individually.

At the same time, the Gateway provides real­-time access to operational data such as tare weight, leak test reference point, leak value, and other key parameters. That creates better visibility across daily operations and makes it easier to follow performance throughout the inspection process.
In a market where cylinder inspection is a routine and essential part of operations, solutions need to match both the regulatory framework and the pace of daily work.

By combining several key checks in one machine and linking them to digital monitoring, the SQC reflects a broader move towards more connected and streamlined quality control.

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