HT HTRH100R Precision Rotational Rod Holder

Overview

The HT HTRH100R Precision Rotational Rod Holder is an engineered optical mounting solution designed for high-stability, repeatable angular positioning of optical components in laboratory and R&D environments. Based on the Couette-type rotational kinematic principle—where a rigid rod rotates concentrically within a precisely aligned bearing-supported housing—the device enables controlled, backlash-free 360° rotation about the longitudinal axis of the mounted rod while maintaining fixed translational coordinates (X, Y, Z) and orthogonal orientation (pitch/yaw). This mechanical decoupling ensures that rotational adjustment does not induce parasitic lateral shift or tilt—critical for interferometric setups, laser beam steering assemblies, polarization-sensitive experiments, and multi-axis alignment tasks requiring sub-milliradian repeatability. The unit integrates into standard optical tables (M6/M4 tapped holes) and is compatible with industry-standard post holders, cage systems, and kinematic platforms.

Key Features

• Precision ball bearing interface between rotating and stationary stages ensures smooth, low-torque 360° continuous rotation with < ±0.05° angular repeatability under typical loading conditions (≤1.5 kg axial load).
• Dual independent locking system: one knurled knob secures the rod axially within the holder; a second independently actuated knob locks rotational position without affecting rod clamping force.
• Integrated neodymium N52 magnetic base (12 mm diameter, ≥4.8 kg pull force on ferrous surfaces) provides rapid, tool-free mounting on steel optical tables or breadboards—designed with magnetic shielding to minimize stray field exposure to nearby instrumentation.
• 100 mm center-to-center rod length accommodates standard Ø12.7 mm (½″) stainless steel or aluminum posts; internal thread specification: M4 × 0.7 for secure rod retention.
• Black anodized 6061-T6 aluminum construction delivers dimensional stability across ambient temperature ranges (15–30 °C), with surface hardness ≥60 HV and corrosion resistance compliant with ASTM B580 Type II Class 1.

Sample Compatibility & Compliance

The HTRH100R supports optical rods, lens tubes, fiber launchers, and detector mounts with outer diameters from 10 mm to 14 mm. It is routinely deployed in setups conforming to ISO 10110-7 (optical element centration tolerances), ISO 9001:2015 calibration traceability frameworks, and GLP-compliant photonic test protocols. While the device itself carries no CE/UKCA marking (as a passive mechanical mount), its design adheres to mechanical safety limits defined in EN 61000-6-2 (immunity) and EN 61000-6-3 (emission) when integrated into larger optical systems. Magnetic base usage complies with IEC 62366-1 usability engineering requirements for lab equipment—user warnings regarding magnetic interference are included in the technical datasheet per ISO 15223-1 labeling standards.

Software & Data Management

As a purely mechanical, non-electronic component, the HTRH100R requires no firmware, drivers, or software integration. However, it is fully interoperable with digital alignment workflows: angular position can be recorded manually or via external encoders (e.g., Thorlabs KDC101-compatible rotary stages); CAD models (STEP, IGES) are provided for integration into Zemax OpticStudio, FRED, or CODE V optical design environments. Calibration certificates—including angular deviation maps generated via autocollimator measurement (±0.02° uncertainty, NIST-traceable) —are available upon request for metrology-grade installations subject to ISO/IEC 17025 accreditation.

Applications

• Alignment of collimated beams in Michelson or Mach–Zehnder interferometers where azimuthal symmetry must be preserved during fine-tuning.
• Mounting and orienting polarization optics (waveplates, polarizers) in ultrafast laser systems where thermal drift-induced misalignment must be minimized.
• Positioning fiber-coupled detectors in spectroscopic setups requiring reproducible angular scanning without recentering.
• Integration into automated optical benches using motorized rotation stages (e.g., Newport URS100CC) where the HTRH100R serves as the passive reference interface.
• Educational laboratories implementing optics curricula aligned with OSA/OSA Education Standards (e.g., “Optical Alignment and Beam Characterization” modules).

FAQ

Is the magnetic base suitable for use on aluminum or composite optical tables?
No—the magnetic base requires a ferromagnetic surface (e.g., low-carbon steel) for rated holding force. For non-magnetic tables, optional M6 screw-mount adapters are available.
Can the rod be replaced with a custom-diameter shaft?
Yes—the internal clamping mechanism accepts rods from 10 mm to 14 mm OD; custom bore inserts (e.g., for Ø25.4 mm) can be supplied under OEM agreement.
Does HT provide calibration documentation for metrological applications?
Yes—angular repeatability verification reports (per ISO 230-2 Annex C) and dimensional inspection certificates (CMM-measured) are available at additional cost.
What is the maximum recommended torque for the locking knobs?
Do not exceed 0.8 N·m; over-torquing may deform the aluminum housing and compromise bearing preload integrity.
Is this product RoHS compliant?
Yes—material declarations per EU Directive 2011/65/EU are available upon request; no restricted substances detected above threshold limits.