SAVÖX SB-3290SG Servo

Description
With the new SB-3290SG servo from SAVOX, the Taiwanese manufacturer Savöx has once again achieved a revolution in servo technology. The newly developed 8-pole brushless motor of this monster not only ensures a lower weight (72 grams) compared to the SB-2290SG (81 grams) but also more power and significantly less heat development. After 5 minutes of operation, it remains up to 20% cooler than its predecessor, the SB-2290SG. This significant improvement means that the servo delivers maximum power for much longer and the model feels much harder, more direct and more precise.
Thanks to the latest technology, the SB-3290SG is significantly quieter and hardly noticeable in normal operation. The familiar "beeping" of digital servos has been virtually eliminated without having to accept any disadvantages.
Especially in extreme flights with high loads, the performance boost is unparalleled. The completely new motor design with the newly developed 32-bit MCU (Motor Control Unit) brings many advantages that offer ambitious 3D and aerobatic pilots new possibilities in flight.
In comparison, the quiescent current of the SB-3290SG is approx. 80mA, whereas the SB-2290SG requires approx. 250mA.
The lower weight is particularly advantageous for large models in the 25 kg range. If the SB-3290SG is installed in the elevator, the 9 grams per servo are clearly noticeable, making it easier to find the ideal centre of gravity.
The SB-3290SG has been tested, checked and improved step by step in countless tests by Germany's best pilots over many months until we have reached a point where we can talk about a real revolution instead of just product maintenance!
To make individual wiring easier, the negative pole of the cable is no longer completely black, as is the case with the SB-2290SG, it is now gray and therefore easier to distinguish.
Of course, the SB-3290SG has a soft start, i.e. the servo moves slowly to the desired position as soon as a voltage is applied / the receiver is switched on.
The SB-3290SG is suitable for use in helicopters, RC cars and fixed-wing models. In the near future, the patented SB-329X series will be supplemented by further servo types.
The torque of this monster leaves nothing to be desired, here are the technical specifications at 6, 7.4 and 8.4V
6V = 50kg*cm with an actuating time of 0.16s/60°
7.4V = 65kg*cm with an actuating time of 0.13s/60°
8.4V = 75kg*cm with an actuating time of 0.11s/60°
Control frequency up to 333Hz, center pulse 1520us
Like all HV servos from Savöx, the SB-3290SG can of course be operated with up to 8.4V!
Assembly instructions SH-8X lever:
Please first tighten the two screws for clamping the gear ring evenly. Then fit the M2.5 screw to secure the lever. If this sequence is disregarded, the lever may be overtightened!
Possible application examples: For large airplanes, rc-cars, scale helicopters / large models

Features

• More power with less weight! 75kg*cm at 8.4V with only 72 grams! Significantly minimized operating noise
• Newly developed 8-pole brushless motor integrated in the housing, therefore 20% less operating temperature after 5 minutes than the SB-2290SG
• 3 ball bearings, patented design, lower power consumption with the same performance compared to the SB-2290SG
• High-voltage capable digital servo up to 8.4V, 32-bit MCU (Motor Control Unit), longer continuous power without drop in force
• High-quality full metal housing with soft start, 25 tooth output, quiescent current of approx. 80mA compared to 250mA of the SB-2290SG

Technical data

Actuating time S2/60° (sec): 0.11
Actuating time S1/60° (sec): 0.13
Length (mm): 20.2
Height (mm): 38.7
Voltage range: 4.8V-8.4V
Width (mm): 40.3
Actuating force S1 (kg*cm): 65
Weight (g): 72
Actuating force S2 (kg*cm): 75
Actuating frequency: Actuating frequency up to 333Hz, center pulse 1520us
High-voltage capable up to 8.4V: Yes
Packaging: Standard
Recommended applications: Helicopter, airplane, car
Output teeth (number): 25
Ball bearing (number): 3
Voltage 1 (Volt): 7,4
Motor type: Brushless motor
Gearbox type: Steel
Housing type: Full metal
Voltage 2 (Volt): 8,4
Classification: Standard

Scope of delivery

1x servo incl. aluminum servo arm (SH-81) and mounting screws