SS-30 Flexure-Based Galvanometer

Ideal for Raster Imaging Applications

Features Capacitive Position Sensing


Nutfield Technology’s SS-30 Flexure-Based Galvanometer with capacitive position sensing, offers exceptionally smooth scanning. TNutfield Tech's SS-30 Flexure-Based Galvanometerhis moving-magnet galvo is ideal for the most challenging applications such as small scan angle, high-duty cycle raster imaging, and printing. Cross-axis flexures replace ball bearings such that errors due to rumble and lubrication are eliminated, enabling smooth scanning, and long service life.

The SS-30 Flexure-Based Galvanometer is intended for large mirrors with recommended aperture range of 20mm to 50mm. It is ideal for use the page scanner in raster imaging systems, having great smoothness at low velocity. It’s also great as a tracking scanner for viewing or marking moving objects or for stabilization in imaging systems.

When integrated with Nutfield’s QD-4000 servo amplifier, the SS-30 Flexure-Based Galvanometer Scanners deliver excellent speed and accuracy. Due to the spring force inherent in the flexure pivot, some scanning modes, such as large angle point and shoot, are not recommended.

Contact Nutfield Technology for assistance with identifying a solution for your scanning application.


Key features of the SS-30 Flexure-Based Galvanometer:

Aperture range – 20mm to 45mm
Cross Flexure Pivot replaces ball bearings
Ideal for raster applications
Excellent cross-axis repeatability
Flexure pivot reduces on-axis jitter
No lubricants – useful in vacuum applications
Extended life in small angle applications


Specifications for the SS-30 Flexure-Based Galvanometer:

Rated Excursion - Raster±20*
Rated Excursion - Vector±10*
Rotor Inertia 8.25 gm-cm²
Recommended Beam Aperture7-15mm
Torque Constant 2.8*10⁵ dyne-cm/amp
Electrical Specifications:
Coil Resistance5.8 ohm
Coil Inductance (@ 1kHz)450 µh
Position Detector:
Angular Sensitivity100 µ amp/°
Gain Drift50 ppm/°C
Offset Drift40 µrad/°C
Repeatabilityup to 10 µrads
Dynamic Performance:
Step Response Time
(1% of full scale, 99% settled)
20 mm (Si) X-Mirror700 µs
45 mm X-Mirror900 µs
Cable lengths available:0.43 m to 0.6 m
Installation:electrically insulated
Storage Temperature:-10 to 50°C
Operating Temperature:0 to 40°C noncondensing
All specifications are using Nutfield Tech's QD-4000 Servo Amplifier.
* Due to spring force inherent in the cross flexure pivots, some types of motion are not recommended. Continuous raster scanning can be performed at
larger angles than vector or point-and-hold applications.
Specifications subject to change without notice.


Nutfield’s SS-30 Galvos are ideal for the following applications:

Solar Scribing
High Speed Scanning

Ideal for high-duty cycle or small angle applications

Excellent for high-resolution imaging applications


Accessories available for the SS-30 Galvanometer:

Cables – available lengths 7″ to 24″ (0.0178m to 0.610m)
QD-4000 Servo Amplifier


Documentation for the SS-30 Flexure Galvanometer:

Nutfield Technology’s Flexure Galvanometer Scanners Data Sheet
Nutfield Technology’s QD-4000 Servo Amplifier Data Sheet
Littlefuse Specifications

U.S. patents apply to this product. For details, visit our Virtual Patent Marking page.