Graupner C 677 - Standard Eco Servo

Specifications

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

Last Updated:	2025-08-07
Modulation:	Analog
Torque:	4.8V: 44.00 oz-in (3.17 kg-cm)
Speed:	4.8V: 0.13 sec/60°
Weight:	1.23 oz (34.9 g)
Dimensions:	Length:1.50 in (38.1 mm) Width:0.75 in (19.1 mm) Height:1.46 in (37.1 mm)
Motor Type:	(add)
Gear Type:	Plastic
Rotation/Support:	Bushing
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Graupner C 677 is a robust, high-torque analog servo in a standard-size package, designed to deliver significant strength with the characteristic smoothness of a Graupner servo. It is an excellent choice for applications that require a step up in power from a standard servo, such as the flight controls on a .60 size aerobatic plane or a large scale model. It is also a very capable and powerful steering servo for 1/10 scale monster trucks. The C 677 is built with a strong gear train and a powerful motor, but it delivers its torque with a level of precision and smoothness that sets it apart from more basic high-torque servos.
The identity of the C 677 is its refined strength. It gives the user the power they need for demanding applications, but without sacrificing the high-quality, proportional control feel that is a hallmark of the Graupner brand. It is a servo for the experienced hobbyist who needs more power but is not willing to compromise on the quality and refinement of their control system.
For roboticists, the Graupner C 677 is a great choice for projects that require both strength and smooth, predictable operation. It is ideal for building a strong but precise robotic arm, or for the leg joints of a medium-sized walking robot where fluid motion is important for stability. It offers a great combination of high-quality construction and powerful performance for more sophisticated robotics projects.