Airtronics/ Sanwa 94558Z - Micro Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-03
Modulation:	Digital
Torque:	4.8V: 43.00 oz-in (3.10 kg-cm) 6.0V: 54.00 oz-in (3.89 kg-cm)
Speed:	4.8V: 0.23 sec/60° 6.0V: 0.18 sec/60°
Weight:	0.71 oz (20.1 g)
Dimensions:	Length:1.06 in (26.9 mm) Width:0.49 in (12.4 mm) Height:1.28 in (32.5 mm)
Motor Type:	(add)
Gear Type:	Hybrid
Rotation/Support:	Bushing
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Airtronics 94558Z, also known as the 'Microlite High Torque 2', takes the impressive performance of the 94557Z and pushes it to the next level. This servo is an absolute powerhouse in a micro-sized package, delivering a level of torque that is truly remarkable for its size and weight. It is the ultimate choice for the most demanding applications where a micro servo is required, such as the control surfaces of high-performance F5B competition gliders and large, aggressively flown electric aircraft. The 94558Z's immense torque ensures that control surfaces remain exactly where they are commanded to be, even under the most extreme aerodynamic loads, providing a locked-in and precise feel that can make the difference between winning and losing.
The 94558Z's exceptional power is generated by a high-performance coreless motor and a robust, high-ratio gear train that is engineered to handle extreme loads. Its ability to deliver such a high level of torque in a small and lightweight package makes it a game-changer for a variety of specialized RC and robotics applications. For the robotics engineer, the 94558Z opens up new possibilities for creating powerful and compact robotic systems, from high-strength grippers to the joints of small but powerful robotic arms. For the builder who needs the absolute maximum amount of torque in the smallest possible package, the Airtronics 94558Z is in a class of its own.