HT HTML25-NS Manual Translation Stage with 25 mm Travel and Left-Side Micrometer Drive

Overview

The HT HTML25-NS is a high-precision manual translation stage engineered for stable, repeatable linear positioning in optical alignment, interferometry, microscopy, and laser beam steering applications. Based on Couette-type mechanical design principles, it employs preloaded linear ball bearing rails to minimize friction-induced hysteresis and ensure smooth, backlash-free motion over its full 25 mm travel range. Unlike standard rack-and-pinion or plain-bearing stages, the HTML25-NS integrates a spring-loaded anti-backlash mechanism that actively compensates for axial play in the micrometer-driven lead screw assembly—critical for maintaining positional fidelity during bidirectional scanning or fine iterative adjustments. Its rigid anodized aluminum body provides dimensional stability across ambient temperature fluctuations (20 ± 5 °C), while the stainless steel precision-ground lead screw (pitch: 0.5 mm) delivers consistent mechanical advantage and long-term wear resistance under laboratory usage conditions.

Key Features

• Precision linear ball bearing guideways with dual-side preload for sub-micron repeatability (≤ ±1 µm typical)
• Left-side mounted micrometer head with 0.01 mm graduation scale and locking knob for tactile, high-resolution manual control
• Spring-assisted anti-backlash compensation system eliminating axial clearance without requiring user recalibration
• Standardized mounting platform featuring a 25 mm pitch grid of M6 and M4 threaded holes—fully compatible with Thorlabs, Newport, and Standa optical breadboard standards
• Modular drive interface supporting direct coupling to differential micrometers or fine-pitch adjustment screws (e.g., 100 µm/rev configurations)
• Corrosion-resistant surface finish (hard-anodized Al6061-T6) suitable for cleanroom environments (ISO Class 7 compliant handling)

Sample Compatibility & Compliance

The HTML25-NS is designed for integration into optomechanical systems where passive, non-electronic positioning is required—particularly in setups sensitive to electromagnetic interference (EMI), such as ultrafast pump-probe experiments or low-noise quantum optics benches. It supports payloads up to 3 kg uniformly distributed, maintaining angular deviation < 5 arcsec over full travel. The stage conforms to mechanical interface specifications defined in ISO 10110-7 (optical component mounting) and meets dimensional tolerances referenced in ANSI/BHMA A156.13 (linear motion hardware). While not certified for medical or aerospace use, its manufacturing process adheres to ISO 9001:2015 quality management protocols, including traceable material certification (mill test reports for aluminum alloy and stainless steel components).

Software & Data Management

As a purely manual stage, the HTML25-NS requires no firmware, drivers, or software integration. All position data must be recorded manually or synchronized via external encoders (e.g., Renishaw RESOLUTE™ linear scales) when used in hybrid setups. For laboratories operating under GLP or GMP frameworks, the absence of electronic components eliminates validation requirements for software audit trails (per FDA 21 CFR Part 11), simplifying documentation workflows in regulated QC environments. Position logs may be maintained using standardized lab notebooks or LIMS-integrated templates aligned with ISO/IEC 17025 clause 7.5.2 (control of technical records).

Applications

• Coarse-to-fine alignment of collimated beams in Michelson or Mach–Zehnder interferometers
• Positioning of fiber launch optics in free-space-to-fiber coupling stations
• Adjustment of grating mounts in monochromator and spectrograph assemblies
• Stage-based sample translation in confocal Raman mapping systems (when paired with motorized Z-axis)
• Calibration reference platforms for displacement sensor verification (e.g., capacitive or LVDT-based systems)
• Teaching labs for undergraduate optics courses—demonstrating Abbe error, cosine error, and thermal drift fundamentals

FAQ

Is the micrometer head included with the stage?
Yes—the HTML25-NS ships with a calibrated metric micrometer head (0–25 mm range, 0.01 mm resolution) pre-mounted on the left side.
Can this stage be mounted vertically or inverted?
It is rated for horizontal use only; vertical orientation exceeds static load limits of the ball rail preload system and may accelerate wear.
What is the maximum allowable moment load?
The stage supports up to 0.8 N·m about the Y-axis and 0.4 N·m about the X- or Z-axes when fully extended—refer to the mechanical drawing (DWG-HTML25-NS-RevD) for centroid constraints.
Are replacement lead screws available?
Yes—HT offers factory-replacement lead screws (P/N: LS-HTML25-0.5M) with matched preload springs and thread gauges for recalibration.
Does the stage comply with RoHS or REACH directives?
All metallic components meet EU RoHS 2011/65/EU Annex II substance restrictions; full material declarations are available upon request for supply chain due diligence.