Motorized goniometer SGF-58

compactfor high-precision angular alignment

Overview The ultra-compact SGF-58 flexure goniometer stage provides precise angular positioning with a center of rotation 58 mm above the working platform. Its flexure-hinge guideway minimizes parasitic motion and enables operation in demanding environments, including high vacuum, ultra-high vacuum and cryogenic temperatures.

Design and Application The SGF-58 replaces conventional steel contact bearings with a flexure hinge mechanism to reduce friction and parasitic errors over a deflection range up to ±2°. Pivot height is customizable from 25 to 100 mm above the top plate on request. The compact 32 x 32 mm footprint and low mass (~52 g) make the stage suitable for integration in space-constrained multi-axis nanopositioning systems.

Integration and Control The stage integrates seamlessly with SmarAct CLS-32 series stages for multi-axis assemblies combining linear, rotational and goniometer motions. It can be driven by SmarAct control units and is available with integrated positioning sensors for closed-loop operation to improve stability and repeatability.

Key technical data

• Travel [°] : > ± 2
• Blocking Torque [Ncm] : 18
• Max. Normal Force [N] : 1
• Dimensions [mm] : 32 x 32 x 25
• Weight [g] : ~ 52
• Center of Rotation [mm] : 58 (above working platform)
• Angular Velocity (open-loop) [°/s] : > 20
• Open-Loop Resolution [µ°] : < 1
• Closed-Loop Sensor Types : S, L
• Sensor Resolution [µ°] : 2 (S), 8 (L)
• Uni-Directional Repeatability MCS2 [µ°] : > 40 (S, L)

Options & Materials

• Material Options: Aluminum (standard); Titanium (-TI)
• Cryogenic Option: Yes
• Vacuum Options: HV (1E-6 mbar); UHV (1E-11 mbar)
• Non-Magnetic Option: Yes

Notes The SGF-58 is intended for integration into compact multi-axis nanopositioning systems and is compatible with SmarAct control electronics and sensor options.