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Stack ActuatorsLaminated type piezoelectric actuators using multi layer piezoelectric ceramic chip according to certain polarity, under the control of DC voltage scaling along the length direction.Use high performance piezo ceramic material:D33=810       D31=-420eT33/e0  5000Operate Temp.:-20 ~ 60 ?Storage Temp.: -30 ~ 85?Curve of drive voltage and stack displacement (sample as per QDS5*5*20MM)Product Specifications:ITEM NO.MaterialSizeDrive Voltage (max)Displacement(max) Driving Force(max)QDS 5×5×20PZT-5545×5×18mm150v DC18µm1000NQDS 7×7×30PZT-5547×7×30mm150v DC28µm2000NQDS 10×10×30PZT-55410×1