Thorlabs Z812 Motorized Actuator 12 mm Travel 1/4-80 Thread Cable 0.5 m

Description:

The Thorlabs Z812 Motorized Actuator is used in precision optomechanical systems to provide automated linear positioning with 12 mm travel for optical mounts, translation stages, and alignment mechanisms. Commonly installed in laser systems, optical benches, microscopy platforms, spectroscopy equipment, photonics laboratories, and OEM scientific instruments requiring computer-controlled motion. Optical engineers, laboratory technicians, and system integrators use this actuator for automated positioning, precision alignment, laboratory upgrades, and replacement of manual micrometer actuators.

Applications:

The Thorlabs Z812 is a DC servo motor actuator designed to replace standard 1/4"-80 threaded micrometer adjusters while providing high-resolution, closed-loop linear motion. It integrates a servo motor, encoder, and limit switches for accurate positioning and repeatable homing, making it ideal for motorizing translation stages, mirror mounts, optical positioning devices, and laboratory automation systems. The NSFS designation typically indicates "New Surplus Factory Sealed" condition from surplus inventory rather than an OEM product specification.

Technical Specifications:

• Brand: Thorlabs
• Part Number: Z812
• Product Type: DC Servo Motorized Linear Actuator
• Travel Range: 12 mm (0.47 in.)
• Drive Thread: 1/4"-80 Threaded Actuator
• Cable Length: 0.5 m
• Motor Type: 6 VDC Servo Motor with Encoder
• Maximum Velocity: 2.6 mm/s (2.3 mm/s Recommended)
• Maximum Acceleration: 4 mm/s²
• Minimum Achievable Incremental Movement: 0.05 µm
• Minimum Repeatable Incremental Movement: 0.2 µm
• Bidirectional Repeatability: <1.5 µm
• Home Location Accuracy: <2 µm
• Backlash: <8 µm
• Vertical Load Capacity: 4.5 kg Maximum
• Horizontal Load Capacity: 9 kg Maximum
• Operating Temperature: 5 °C to 40 °C
• Integrated Features: Encoder Feedback, Home Switch, Limit Switches, Overtravel Protection
• Compatible Controller: Thorlabs KDC101 K-Cube DC Servo Controller (also compatible with selected legacy APT controllers with updated firmware)
• Typical Applications: Motorized Translation Stages, Mirror Mounts, Optical Alignment Systems, Microscopy, Photonics Research, and Laboratory Automation.

Common Replacements:

• Thorlabs Z912 12 mm DC Servo Motorized Actuator
• Thorlabs Z812B 12 mm Smooth-Barrel Motorized Actuator
• Thorlabs ZFS13 13 mm Stepper Motorized Actuator