Cirrus CS-70 - Pro Servo

Specifications

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

Last Updated:	2025-08-04
Modulation:	(add)
Torque:	4.8V: 45.80 oz-in (3.30 kg-cm)
Speed:	4.8V: 0.12 sec/60°
Weight:	1.55 oz (43.9 g)
Dimensions:	Length:1.59 in (40.4 mm) Width:0.77 in (19.6 mm) Height:1.48 in (37.6 mm)
Motor Type:	(add)
Gear Type:	(add)
Rotation/Support:	Bushing
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Cirrus CS-70 is a robust, high-torque standard-sized analog servo, well-regarded in the RC community as a powerful and affordable workhorse. It is designed to deliver a substantial amount of torque, making it an excellent choice for the steering systems on 1/10 and 1/8 scale off-road vehicles like monster trucks and rock crawlers. It is also a very capable servo for the flight controls on .60 size and larger sport aircraft. The CS-70 is built to be a durable and reliable performer, featuring a strong gear train that can handle the high-stress demands of these applications.
The identity of the CS-70 is its straightforward power and value. It provides the muscle needed to turn big tires in tough terrain or to move large control surfaces against significant airflow, and it does so at a very budget-friendly price. It is a favorite among basher" enthusiasts and sport flyers who need a strong servo that can take a beating and keep on working. It has a long-standing reputation for being a dependable high-torque servo that gets the job done.
For robotics builders the CS-70 is a fantastic choice for projects that require a lot of power without a big budget. Its high torque is ideal for building strong robotic arms heavy-duty grippers or for the primary load-bearing joints of a medium-to-large sized robot. It is a very practical and effective actuator for bringing powerful motion to a wide range of hobbyist and educational robotics projects."