Rod on the Rocks—The Water-Cooling Cylinder

What’s better than a nice cold drink as summer is getting hotter and hotter? After a stressing hard work and high temperatures, a little bit of refreshment is a must. And—odd as it may seem—the same thing holds true for cylinders as well! Why?

    Heat Issue

As it’s well known, some production fields (such as die-casting) require very high temperatures, way higher then those required for plastic injection. Some cylinders are specifically designed to withstand such high temperatures, but not all the pieces are able to last long. Let’s take seals as example—though designed to withstand high temperatures, after some time they are prone to wear out. And this issue is not limited to seals alone—more important pieces (such as switches) may suffer from the temperature as well, giving rise to several problems. What can be done to maintain the temperatures required for die-casting while cooling the cylinder at the same time?

    Water Rod

In a hydraulic cylinder, the rod is the piece that suffers the most from constant movement and high temperatures, and in effect it’s from around the rod itself that most pieces get overheated. It goes without saying, then, that reducing the rod temperature is the first step toward solving the problem. How to do it?

Thinking about it, what do we do when it’s hot? We look for water! Be it a cold drink, a nice shower or a dip in the pool, water is the best way of refreshing and lowering the temperature. And it’s the best way for cylinder rods too!

That’s why we revised our V450 cylinder, implementing a new water-cooling rod. Causing cool water to regularly pass through the rod, a great deal of “accumulated” heat gets “washed away”. This simple yet practical solution can even cause the cylinder temperature to drop by 50°C. (122°F.)!

Granted, our seals have a good temperature resistance, and the same is true for HT sensors. And it’s also true that insulating plates can be provided for temperature drop. But even though all these solutions may prevent further issues, none of them can “cure” them. On the other hand, that’s exactly what our new water-cooling V450 cylinder does—a huge step forward to more efficient cylinders, in every field.

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