With its hermetically sealed metal bellows structure, large static capacitance of 5μF, and resonance frequency of 32kHz, the DCSE-R12H45P50 offers a highly reliable solution for precision displacement control in harsh environments such as high humidity, oil contamination, or underwater conditions. It is particularly well-suited for nanopositioning stages, optical focusing mechanisms, and hydraulic proportional valve drives in high-humidity environments.

1. Structural Design

●Hermetically Sealed Metal Bellows Package: The piezoelectric stack is sealed inside a Φ11.5 × 44.5mm stainless steel bellows in a nitrogen-protected atmosphere, isolating it from moisture and corrosive media.

●Compact Cylindrical Profile: Outer diameter of only 11.5mm and length of 44.5mm, suitable for integration into precision actuators with limited space.

●Standardized Leads: PTFE-insulated cables, AWG26规格 (Ø0.68mm), length 100mm, with temperature and oil resistance, suitable for soldering or connector termination.

2. Material Properties

●High Piezoelectric Performance: Static capacitance 5μF±20%, blocking force 800N, stiffness 14N/μm, fast response, and high output force.

●Wide Temperature Range and High Curie Point: Operating temperature -25～130°C, Curie temperature 230°C, maintaining stable piezoelectric characteristics even at elevated temperatures.

●Low Hysteresis: Hysteresis <15%, enabling high-precision positioning when paired with closed-loop control.

3. Core Advantages

●Harsh Environment Adaptability: The IP-rated sealed structure ensures long-term stable operation in high-humidity, underwater, or oil-immersed environments, significantly extending service life and reliability.

●Large Displacement Combined with High Force: Nominal displacement of 50μm±15% (0-150V drive) and blocking force of 800N, balancing precision adjustment with load-driving capability.

●Wide Drive Voltage Range: Supports -30～150V drive voltage, compatible with bipolar control for both forward and reverse displacement adjustment.

●Maintenance-Free Design: Vacuum-sealed package requires no additional moisture protection; ready for long-term use after installation.

4. Typical Applications

●Precision Positioning in High-Humidity Environments: Used for underwater optical system focusing and fine adjustment mechanisms in marine exploration equipment.

●Industrial Hydraulic and Pneumatic Control: Serves as the actuation element for proportional valves and servo valves, enabling precise flow and pressure regulation.

●Nanopositioning and Micro-Stages: Integrated into scanning probe microscopes, nanoindenters, and precision alignment systems.

●Optical Focusing and Stabilization: Used for laser processing head focusing, camera autofocus, and optical path phase compensation.

5. Usage and Warranty Instructions

●Power Supply Selection and Wiring: Select an appropriate power supply according to operating conditions and correctly connect the positive and negative electrodes (red wire is positive). A sinusoidal signal is recommended, with the voltage range controlled between -30V and 150V.

●Frequency Limitation: Operating frequency should be less than 1% of the resonance frequency (i.e., <320Hz) to avoid overheating or mechanical damage.

●Preload Recommendation: Recommended preload (load) is less than 600N; can be used without load. Correct assembly and preloading extend product service life.

●Storage Conditions: Store in vacuum packaging with discharge resistors connected during storage. Control ambient temperature, humidity, and cleanliness; keep away from organic solvents, flammable gases, or liquids.

●Prohibited Actions: Do not disassemble the product. Avoid impact or dropping, which may damage the internal piezoelectric stack or the bellows sealing structure.

●Customization Support: Custom versions with different displacement ranges, drive voltage ranges, and lead lengths are available. Please contact us for inquiries.