Motorized Z-axis Linear Positioning Stage

These high resolution, compact, low profile elevator stages feature high stability 120 mm x 120 mm tables and 20 mm of vertical travel. High precision ball bearing profile rails assure very high parallelism and smooth motion throughout the raising and lowering of the table. These Z-Axis Stages are ideal for: Microscopy, inspection, metrology, positioning, photonics, sampling, and laser drilling and machining.

Driven by Two-Phase Stepper Motors, the DAG20-120-01 and the DAG20-120-04 Motorized Elevator Stages feature 2 micron positioning accuracy, and resolutions of 0.03 microns (with a 10 Micro-steps per step motor driver in use). The knob for manual adjustment on the DAG20-120-01 (shown) is replaced with a Quadrature Incremental Optical Encoder for position verification on the DAG20-120-04. The load capacity of these compact stages is 20 kg.

These compact, black anodized aluminum alloy stages measure 181.8 mm x 120 mm x 115 mm high at the raised position. Speed of travel is 5 mm per second and limit switches prevent over traveling. The table of each stage has a precise pattern of threaded holes for fixtures or tooling, and holes in the base allow for easy integration into a new or existing application.

These stages require a Motion Controller that can be ordered as a complete plug-and-play system with RS-232, USB, joystick, trackball, and keypad control.
 

Specifications

Type  DAG20-120 Structure Description Travel 20 mm Table Size 120 mm × 120 mm Belt Ratio 0.0625 mm per motor turn Travel Guide Linear Guide DB-9 Male Connector   Two-Phase Stepper Motor (1.8°)   Typical Phase Current 1.5 Amp Electrical Connection Pin No. Description 1 +24 VDC for the Limit Sensors 2 High Side Limit Switch Open Collector or Normally Open Needs Pull up Resistor (typically 1000 Ohms) 3 Low Side Limit Switch Open Collector or Normally Open Needs Pull up Resistor (typically 1000 Ohms)   4 Return for+24 VDC 5 Not Connected 6 Stepper Motor Phase A+ 7 Stepper Motor Phase A- 8 Stepper Motor Phase B+ 9 Stepper Motor Phase B-   Body Material Aluminum Alloy Surface Treatment Black Anodized Load Capacity 20 kg Weight 4.2 kg Typical Accuracy Resolution 0.1 microns (10 Micro-steps per Step Motor Driver in use) Maximum Speed with Stepper Motor 5 mm / sec Accessories Description Typical Repeatability Accuracy 2 microns Optical Encoder