Conventionally, hydraulic cylinders have been used in rail width adjustment mechanisms in railway vehicle testing equipment.

However, there was a risk of environmental pollution due to oil leaks, and the high maintenance burden was an issue, as it required a great deal of man-hours to identify and repair the leak.

In addition, because the equipment was installed underground, it was subject to direct rainwater exposure, and under normal specifications, the risk of corrosion was unavoidable.

Therefore, there was a need for a solution that offered higher water resistance and corrosion resistance.

By using an electric cylinder, there is no need to worry about oil leaks, reducing the risk of environmental pollution.

This has significantly reduced the amount of work required to identify and repair leaks, leading to a reduction in maintenance workload.

In addition, taking into consideration the installation environment of this device, a motor with protection class IP56 specifications has been adopted to enhance water resistance, allowing it to operate safely even in conditions where it is exposed to rainwater.

Furthermore, stainless steel is used for the main parts such as Rod and End fitting to fully protect against rust and corrosion, ensuring stable operation even under harsh conditions.