Annular Multi-Layer Stack Piezoelectric Ceramic

Annular Multi-Layer Stack Piezoelectric Ceramic

Redefining industry standards for rotary precision actuation and high-torque output through innovative annular mechanics and multi-layer stacking technology. As specialized manufacturers, we refine annular structural processes with material innovation and strict quality control, delivering reliable high-performance customized solutions to advance rotational control systems in advanced equipment.

Structural Design

● Annular Stack Architecture: Circumferentially stacked ceramic discs with radially arranged electrodes align electric fields with tangential directions, directly generating rotational torque with 50%+ efficiency gain over linear stacks.

● Coaxial Preload Mechanism: Integrated annular preload sleeve applies uniform radial pressure to maintain layer integrity under high-speed rotation (>10,000 rpm), preventing centrifugal delamination.

● Multi-Functional Hollow Core: Central bore integrates optical components, cooling channels, or sensor cables for all-in-one system integration.

Material Properties

● High-Shear Piezoelectric Material: Modified PZT composition optimized for tangential piezoelectric constant (d15≥750 pC/N), enhancing rotational force density and energy efficiency.

● Centrifugal Stability: Gradient sintering technology strengthens radial tensile strength, limiting performance degradation to <3% under extreme centrifugal stress.

● Broad Thermal Adaptability: Operates reliably from -25°C to 130°C with thermal drift coefficient <0.03%/°C.

Core Advantages

● High-Torque Output: Tangential force superposition enables torque output up to tens of N·m, surpassing conventional linear-stack rotary solutions.

● Nanometer-Level Angular Control: 0.001-arcsecond resolution with <0.05% repeatability for ultra-precision optical alignment and micro-nano machining.

● High-Frequency Dynamics: <100μs response time supports kHz-range vibration for ultrasonic motors and real-time correction systems.

● Extended Durability: Adhesive-free full-sintering and fatigue-resistant electrodes ensure >5×10^7 cycles under continuous industrial operation.

Typical Applications

● Ultrasonic Motors: Micro-robot joint drives, spacecraft solar array deployment mechanisms.

● Precision Instruments: Lidar mirror scanners, astronomical telescope focal plane adjusters.

● Medical Systems: CT scanner anode drives, endoscopic ultrasound rotary scanning modules.

● Industrial Automation: Wafer spin coating platforms, high-precision CNC rotary tables.

● Energy Systems: Wind turbine pitch control, annular vibration energy harvesters.

Quality Commitment

● Full-Process QC: Laser-aligned inspection from tape casting to annular sintering ensures <1μm layer alignment and 100% electrode continuity verification.

● Customization Expertise: Tailored diameters, bore dimensions, and torque/speed curves with dynamic simulation and drive system co-design.

● Application Engineering: Installation guidance, dynamic load testing, rapid fault diagnostics, and 24-hour response to customization requests.