There are several styles of trimmers used in the current generation of Melco embroidery machines, including original AMAYA (Big Red), XT, XTS, Bravo, EMT16 and EMT16Plus. The trimmers along with the replacement trimmer part numbers are identified here:
S95 Trimmer: (PN#34666-01 Kit, Thread Cutter Blade)
ACA Trimmer: (PN#33519 ACA Trimmer Module, Assembly)
XT Trimmer: (PN#32748 Knife, Trimmer)
This is the original trimmer for XT machines.
XT Trimmer Drive Assembly
If you also need to determine what type of Trimmer Drive Assembly you have, check below:
Gen1 Trimmer Drive Assembly
Gen2 Original Trimmer Drive Bracket Upgrade
Gen3 Latest Trimmer Drive Bracket
Original AMAYA (Big Red): (PN#10186 Knife, Moveable)
This is the trimming system for original Red/White AMAYA.