High-pressure LVDT displacement sensors are widely used in overhead crane systems to monitor boom position, trolley travel, hoist height, and hydraulic cylinder stroke. Their sealed stainless-steel construction supports stable operation in dusty, oily, and high-vibration environments. Typical technical parameters include measuring ranges from 0-50 mm to 0-300 mm, with custom strokes available. Pressure resistance is commonly rated at 25 MPa, 35 MPa, or 50 MPa, depending on housing and connector design. Linearity is usually +/-0.25% FS, repeatability is +/-0.01% FS, and resolution is infinite. Output options include 4-20 mA, 0-10 V, 0-5 V, or RS485 for PLC and crane controller integration. Supply voltage is 24 VDC, with a wide 12-36 VDC range. Operating temperature is -40 to +85 deg C, and protection class is IP67 or IP68. The core and coil assembly offers high dielectric strength, while the housing resists shock and vibration according to relevant IEC standards. Guided or spring-loaded probes can be selected for different mounting conditions. For overhead crane safety, confirm pressure rating, stroke, thread size, electrical connector, cable length, and EMC compatibility before installation. Regular calibration and proper cable shielding help maintain accuracy and long service life. For harsh port and steel-mill applications, choose 316L stainless steel, armored cable, IP69K protection, and surge protection to improve durability and reduce downtime. Reliable data aids safety.