The Worlds Most Unique Linear Position Sensor


SL2000 showing unit with MTS and cable extended.

Why CPI Harsh Duty Linear Position Sensors Are Perfect for Large Hydraulic Cylinders: A Deep Dive into the SL Series

When it comes to managing and controlling large hydraulic cylinders, precision and toughness is paramount. These massive systems are often used in outdoor or underwater industrial applications, such as construction, mining, digging, specialized transportation, and material handling, where even the smallest misstep can lead to catastrophic failures. This is where CPI’s Harsh Duty Linear Position Sensors, particularly the SL Series, come into play.

These unique “draw-wire” position sensors are engineered to withstand the harshest environments while offering unmatched precision and longevity, making them a vital component for any system utilizing large hydraulic cylinders.

Let’s take a closer look at why these sensors are so effective and why the SL Series stands out as an industry leader.

1. Engineered for Extreme Durability

One of the primary reasons CPI’s Harsh Duty Linear Position Sensors are perfect for large hydraulic cylinders is their unparalleled durability. Hydraulic cylinders are often exposed to extreme conditions—high-pressure fluid, temperature fluctuations, dust, vibration, and moisture.

The SL Series sensors are specifically built to endure these challenges. With robust aluminum or stainless steel housingssealed connections, and resistant coatings, these sensors perform reliably in demanding environments. They are IP69K rated, meaning they can withstand high-pressure water jets and extreme temperatures, ensuring they won’t fail in rugged settings.

And unlike your mother’s linear position sensors, they use a completely non-contacting technology for a transducer. No string pot’s here, a short magnetostrictive sensor is used to sense the geared down cable movement with extreme precision.

2. Long Stroke Lengths for Larger Systems

The CPI SL-6000 can run immersed in Salt Water or Hydraulic Fluid and detect stroke movement up to 30 meters.

Hydraulic cylinders often require very long stroke lengths to complete heavy-duty tasks, like lifting, pushing, or pulling large loads. In many cases, these stroke lengths can exceed what conventional position sensors are capable of measuring accurately. These kinds of stroke lengths really require a draw wire type sensor that can be mounted either internal or external to the hydraulics.

The SL Series stands out because it offers extremely long stroke lengths—up to 30 meters in some configurations. These extended stroke lengths ensure that the sensor can effectively measure the entire range of motion of the cylinder without compromising on performance including telescoping cylinders. The ability to measure such a wide range of motion is crucial when dealing with heavy-duty machinery that relies on precise hydraulic cylinder movement for efficient operation.

3. Unmatched Precision in Harsh Environments

Precision is key in hydraulic systems, where even a slight deviation in position could lead to equipment failure, safety risks, or costly downtime. The SL Series sensors offer highly accurate position feedback, ensuring that large hydraulic cylinders operate within the precise parameters needed for optimal functionality. Whether used for measuring the rod position or the cylinder’s overall stroke, the SL Series guarantees consistent, accurate readings even in dirty, wet, and vibration-heavy environments.

By providing contactless measurement technology with an LVDT or short magnetostrictive transducer, these sensors eliminate the risk of mechanical wear, further ensuring long-term reliability. This precision is critical for high-performance machinery in industries like construction and mining, where hydraulic cylinders are central to equipment operations.

4. Versatility and Customization

Large hydraulic cylinders come in a wide variety of shapes, sizes, and applications. One sensor does not fit all, which is why CPI’s SL Series offers flexibility in design and installation. These sensors can be customized to match the specific requirements of the application, whether it’s high pressure, varying temperatures, or unusual mounting configurations.

In addition, the SL Series is designed with easy integration in mind, with multiple output options (analog, digital, and more), making it compatible with a range of hydraulic control systems. This adaptability ensures that no matter the complexity of the hydraulic system, the SL Series can seamlessly fit into the setup.

Linear Position Sensors

5. Maintenance-Free Operation

Maintenance is a significant cost factor in industries that rely on heavy-duty machinery. Traditional sensors may require constant calibration or replacement due to wear and tear. However, the SL Series is designed for maintenance-free operation, reducing downtime and the associated costs. SL series sensors have be tested under salt water for over 1 million cycles of operation. Most hydraulic cylinders will need servicing long before our sensor does.

Because these sensors are resistant to contaminants like dust, dirt, and moisture, and since they feature non-contact sensing technology, they are less prone to failure. This translates into fewer interruptions for the operation and longer service intervals—ideal for large hydraulic systems where maintenance is often difficult or costly.

6. Cost Efficiency Over Time

Though the initial investment in a CPI Harsh Duty Linear Position Sensor may be higher than some other options, it’s unique operational characteristics, its long lifespan and reduced need for maintenance make it a cost-effective solution in the long run and for many applications, it’s the only game in town. Its reliable, accurate performance means that there are fewer breakdowns, less downtime, and fewer replacement costs over time. This makes the SL Series an excellent investment for industries like oil and gas where downtime is particularly expensive and productivity is key.

7. Wide Temperature Range

Another advantage of the SL Series is its wide operating temperature range. Whether exposed to freezing cold or extreme heat, the SL Series sensors continue to function effectively, making them suitable for all types of hydraulic applications. This is especially important in industries that operate in varied climates, where temperature extremes are commonplace.

SL Series is The Perfect Linear Position Sensor for Large Hydraulic Cylinders

CPI’s Harsh Duty Linear Position Sensors, particularly the SL Series, are the ideal choice for large hydraulic cylinders in extreme conditions. Their long stroke lengthsprecision accuracyrugged durability, and maintenance-free operation make them the go-to option for industries that depend on hydraulic systems for their operations. Whether you are working in construction, mining, or any other field that requires heavy-duty machinery, these sensors provide the reliability and performance you need to keep your systems running smoothly and efficiently.

Our SL series sensors can be customized to your needs.  Call our engineering team today to discuss your application.

Originally published at: https://www.cpi-nj.com/the-worlds-most-unique-linear-position-sensor/


 

Comments

Popular Posts