In the world of advanced manufacturing and quality control, achieving micron-level accuracy is not just a goal—it's a requirement. The KEYENCE GT2-PA12K high-precision contact sensor is engineered to meet this demand head-on, offering exceptional performance in a robust, pencil-type design. Whether you're involved in precision machining, assembly inspection, or R&D, this sensor brings a new level of reliability and accuracy to your applications.

Detailed Parameters and Specifications

At its core, the GT2-PA12K is built for extreme precision. It boasts a measurement range of 12 mm and an incredible resolution of 0.1 µm, allowing it to detect variations that are virtually invisible to the naked eye . This high resolution is backed by a display accuracy of 1 µm (peak-to-peak) under standard environmental conditions of 20°C, ensuring your measurements are both precise and trustworthy .

The sensor operates on a pneumatic system, requiring clean, dry air within a specific pressure range of 0.24 to 0.26 MPa . Its measurement force is low and varies slightly depending on the installation orientation: 1.2 N for downward mounting, 1.15 N for side mounting, and 1.1 N for upward mounting . This programmatically controlled force minimizes the potential for damaging delicate workpieces. With a fast sampling cycle of 4 ms, it is capable of taking rapid, real-time measurements for dynamic processes .

Durability is a key feature of the GT2-PA12K. It meets the IP67 (IEC) protection standard, making it resistant to dust and water immersion, which is crucial for harsh industrial environments . It can operate in temperatures from 0 to +55°C and withstand significant vibration and shock impacts up to 1000 m/s² . The main body is constructed from SUS303 stainless steel, with the spindle featuring a SUS430 stainless steel with a fluorine coating, and the contact points made from SUS304 and SUS440C stainless steel for long-lasting performance .

Key Features and Advantages

• Ultra-High Resolution and Accuracy: The 0.1 µm resolution and 1 µm accuracy are at the heart of what makes this sensor exceptional, enabling trustworthy measurements for the most demanding tasks .

• Robust and Durable Construction: With an IP67 rating and rugged metal housing, the GT2-PA12K is built to withstand the rigors of industrial use, including exposure to coolants and oils .

• Flexible Installation Options: Thanks to its pencil-type form factor and specified measurement forces for different orientations (downward, side, upward), it can be easily integrated into complex machinery and fixtures .

• Absolute Type Detection System: Utilizing KEYENCE's proprietary "Optical Scale System II," this sensor is an absolute type, meaning it does not produce tracking errors and retains its position even after a power cycle, eliminating the need for re-referencing .

• Clear Operational Status: A two-color LED (red and green) provides an immediate and clear visual indication of the sensor's status, simplifying operation and troubleshooting .

Diverse Application Scenarios

The combination of high precision, robustness, and speed opens up a wide array of applications for the GT2-PA12K across various industries:

• Dimensional Measurement in Metalworking: Perfect for verifying the exact dimensions of machined parts with extreme accuracy .

• Flatness and Warpage Inspection: Ideal for checking the flatness of components like smartphone casings, LCD screens, and other critical frames to ensure they meet strict design specifications .

• Machine Tool and Bearing Monitoring: It can be used to control deformation in machine door frames, monitor wear in grinding machines, and perform precise bearing checks .

• Assembly Process Control: The sensor is excellent for verifying the proper assembly of stamping fixture systems and checking workpiece clamping, preventing defects at the source .

• Height and Gap Control: Applications include controlling the height of polishing machines and managing the roll gap in rolling mills.

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The KEYENCE GT2-PA12K is more than just a sensor; it's a comprehensive solution for high-precision measurement challenges. Its standout specifications, rugged design, and wide applicability make it an invaluable tool for engineers and technicians aiming to enhance quality, improve process control, and push the boundaries of manufacturing precision. By integrating this powerful device into your systems, you invest in reliability, accuracy, and efficiency.