English to Spanish Tech/Engineering Mechanics / Mech Engineering User manual

Dear all,

URGENT!
I am translating the user manual of a machine and I can't find the terms to define this kind of machine. The words are:
-Double puller
-Flying cut

This is the context:

"This manual describes the operating modes which allow the movements of the part of equipment called Double Puller with Flying Cut.This manual is addressed to the Operators and the Maintenance Personnel of Double Puller with Flying Cut."

Does anyone translate engineering or user manuals of industrial machinery?
Any idea of how to put these terms in Spanish?

Many thanks in advance,

Patricia