![]() Stick-Slip Direct-Drive Piezo Motor Linear Actuators (Mini-Rod Drives) are compact ceramic linear motors with forces to 10N and speed to 10 mm/sec. They provide high resolution and holding forces, but low speed typically on the order of a few mm/minute. Stick-Slip Ratchet Type Piezo Motor Linear Actuators (Screw Drives) are often used for set & forget type adjustments, replacing manual micrometers. The drive principle in piezo ceramic motors / actuators is intrinsically nonmagnetic and vacuum-compatible. PI currently offers several types of long travel piezo linear motors and several types of short travel actuators such as flexure actuators, stack actuators, and bender actuators. An economical high precision stepper motor actuator controller is available as the C-663 Mercury Step. ![]() Motorized linear actuators with built-in anti-rotation ( non rotating tip) are easier to integrate and when used as pushers, do not generate torque or wear at the contact surface. To reduce power consumption and size, smaller rotary motors are often equipped with gear heads to provide higher torque and resolution, however at the cost of speed. Both types of actuators are based on a combination of an electromagnetic rotary motor with a mechanical screw. Position feedback is available with linear encoders and motor shaft mounted rotary encoders. Lead-screw actuators provide high forces and can hold high loads with self-locking capabilities, while ball screw actuators are used for higher speed linear motion applications with longer service life. They are available with closed-loop servo motors and, for lower cost applications with stepper motors. These classical captive motorized linear actuators convert rotary motion into linear motion by coupling a rotary motor to a lead screw or ball screw. Custom Actuators – Hybrid Closed Loop Actuators.Ultra-High Resolution Closed-Loop Piezoelectric Stack Linear Actuators (Short Travel 15 to 180µm).Ultra-High Resolution & Speed Amplified Piezoelectric Linear Actuators.High-End PiezoWalk Motor Linear Actuators.Compact, Low Cost Piezo Ratchet Motor Linear Actuators (Micrometer Replacement).Different Types of Piezo Linear Motor Actuators.Fast Closed-Loop Voice Coil Actuators with Frictionless Air Bearings / Flexures.Fast Voice Coil Linear Actuators with Mechanical Bearings.Precision Ball Screw Motorized Linear Actuators:.Low Cost Stepper Motor Captive Actuators, Lead Screw Drive.Precision Lead Screw Captive Linear Actuators, Closed-Loop Servo and Stepper Motor-Driven.Low Cost Piezo Motor Linear Miniature Actuators, Mini-Rod Inertia Drive.
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