Galvanometer Scanners
SS-30 Flexure-Based Galvanometer
Exceptionally smooth; ideal for raster imaging applications
Nutfield Technology’s SilkScan-30 (SS-30) flexure-based, moving-magnet galvanometers with capacitive position sensing offer exceptionally smooth scanning for the most challenging galvanometer 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. When integrated with Nutfield’s QD-4000 servo amplifier, the SS-30 galvanometer scanners deliver excellent speed and accuracy.
- Recommended apertures15mm, 20mm, 30mm
- Product familyFlexure-Based Galvos

Overview
Contact Nutfield Technology for assistance with identifying a solution for your scanning application.
Key Features
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
Values as published by Nutfield Technology.
Specifications for the SS-30 Flexure-Based Galvanometer:
| Specifications: | Value |
|---|---|
| Mechanical Specifications: | SS-30 Flexure-Based Galvanometer |
| Rated Excursion – Raster | ±20* |
| Rated Excursion – Vector | ±10* |
| Rotor Inertia | 8.25 gm-cm² |
| Recommended Beam Aperture | 7-15mm |
| Torque Constant | 2.8*10⁵ dyne-cm/amp |
| Electrical Specifications: | |
| Coil Resistance | 5.8 ohm |
| Coil Inductance (@ 1kHz) | 450 µh |
| Position Detector: | |
| Angular Sensitivity | 100 µ amp/° |
| Linearity | >99.9% |
| Gain Drift | 30 ppm/°C |
| Offset Drift | 10 µrad/°C |
| Repeatability | 5 µrad |
| Dynamic Performance: | |
| Step Response Time | |
| (1% of full scale, 99% settled) | |
| 20mm (Si) X-Mirror | 700 µs |
| 45mm X-Mirror | 900 µs |
| Cable lengths available: | 0.43 to 0.6m |
| 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. |
Applications
Nutfield’s SS-30 Galvos are ideal for the following applications:
- Solar Scribing
- Imaging
- Marking
- High Speed Scanning
Ideal for high-duty cycle or small angle applications
Excellent for high-resolution imaging applications
Accessories
Accessories available for the SS-30 Galvanometer:
- Cables – available lengths 7″ to 24″ (0.0178m to 0.610m)
- QD-4000 Servo Amplifier
Downloads
Documentation for the SS-30 Flexure Galvanometer:
- Nutfield Technology’s HS-15 and SS-30 Flexure Galvanometer Scanners Data Sheet
U.S. patents apply to this product. For details, visit our Virtual Patent Marking page.
Need help choosing the right scanning solution?
Contact Nutfield Technology for assistance with identifying a solution for your scanning application.


