GM-12ER 3 Axis Gimbal Mount



Newmark’s high precision GM-12ER 3 Axis Motorized Gimbal Mount is designed for high accuracy pointing, scanning and tracking applications for large optics, antennas and other sensors.
The GM-12ER is also suitable as a motion simulator for ships and aircraft. Our large 3 axis motorized gimbal mounts are equipped with high performance rotary stages and offer excellent stiffness and load capacity making them suitable for a wide variety of applications. The GM-12ER is equipped with direct-read high resolution optical angular encoders mounted to the rotating output spindle. This improves the accuracy and bi-directional repeatability over the standard GM-12 gimbal.
The GM-12ER uses high torque NEMA 23 stepper motors coupled to precision preloaded worm gears providing backlash free positioning. Optical limit and home switches are standard items. The angular encoders provide a reference mark with a repeatability of +/- 1 encoder count.
The rear of the GM-12ER has connectors for a clean and reliable connection.
Need something specific? Contact us to discuss a custom gimbal solution.
GM-12ER Series, 3 Axis Gimbal, Direct Read Encoder
Typical lead-time: 16-18 Weeks
$24,200.00
Resolution |
0.79 arc-sec |
Accuracy |
+/- 25 arc-sec |
Max. Speed |
20°/sec |
Repeatability |
2 arc-sec |
Max. Output Torque |
10.2 Nm (90 lb-in) |
Max Payload Weight |
23 kg (50 lbs) The net center of mass for the payload and the roll stage must be under 10 Nm. |
Travel Range |
Azimuth: ±90°
Elevation: ±90°
Roll: ±90°
Minimum travel: ±45°, Maximum travel: ±135°
Consult factory for other travel ranges
|
Operating Temperature |
0°C to 40°C |
Encoder |
High resolution optical ring encoder mounted to the output spindle for direct angular reading |
Limit Switches |
Optical end of travel limit switches on both axes |
Origin |
Optical home switch located in the middle of travel.
Magnetic reference mark on encoder |
Gear Ratio |
72:1 |
Stage Weight |
24.5 kg (64 lbs) |
Material |
Aluminum Alloy Construction |
Finish |
Black Anodize |

Size 23 Stepper Motor
- NEMA 23 high torque stepper motor
- 2.8 Amp/Phase
- 0.9 Ohm/Phase
- 2.5 mH/Phase
- 1.8 degrees/step
- Compatible with the following motion controllers: NSC-A1 Series | NSC-G Series