When comparing the Parker ETH 125 Ball Screw Cylinder with a comparable planetary roller screw cylinder, there are many factors to consider. Offering thrust forces to 114000N, strokes to 2.0m and an ISO125 compatible flange, the ETH125 electric cylinders close the gap to pneumatic/hydraulic actuators, offering a suitable replacement with the benefits of greater control and increased reliability.

Let’s look at a high-level overview of the advantages of the Parker ETH125 High-Force Screw Driven Electric Cylinder over a similar product:

Load Rating – The specific design of the ETH125 cylinder allows for a ball screw spindle up to 30% larger in diameter compared to cylinders using planetary roller screws with the same external cross-sections. This allows for an up to 17% higher dynamic load rating.

Lifetime – Dynamic load rating affects the lifetime expectation of cylinders in 3rd power. For example, the ETH125 offers triple lifetime expectation at 1/3 of maximum load compared to cylinders with the same external cross-section, using planetary roller screws. This can translate to an up to 300% longer lifetime expectation.

Footprint – For the same application lifetime requirements, an ETH with smaller outside dimensions can be used, reducing footprint by up to 20%.