A Multi Turn Electric Actuator (MTEA) is a type of electric actuator that is designed to perform multiple turns of a shaft or camshaft. Compared to Part Turn Electric Actuators (PEA), MTEA's are typically larger in size and are used for more complex repairs or modifications.

MTEA's are used in a variety of industries, including automotive, aerospace, and medical, to perform a wide range of repairs and modifications. They are often used to rotate large shafts or camshafts that are difficult to access or require precision rotation.

There are several types of MTEA's, including:

Simple Turn MTEA: This type of MTEA is used to rotate a single camshaft lobe for repairs or modifications.

Compound Turn MTEA: This type of MTEA is used to rotate two camshaft lobes at the same time for more complex repairs or modifications.

Integral Turn MTEA: This type of MTEA is designed to rotate a camshaft assembly, including the camshaft and the camshaft adjuster.

MTEA's and Quarter-Turn Electric Actuators (QEEA) are similar in that they both rotate a shaft or camshaft, but there are several differences.

MTEA's are designed to rotate multiple turns of a shaft or camshaft, while QEA's are designed to rotate a quarter-turn of a shaft or camshaft.

MTEA's are typically larger in size and more powerful than QEA's, and are used for more complex repairs or modifications.

QEA's are typically smaller in size and less powerful than MTEA's, and are used for more routine repairs or modifications.

In summary, MTEA's and QEA's are both electric actuators used to rotate shafts or camshafts, but there are several differences in size, power, and application.