The M3-UL frame has a larger roller diameter at 1 5/8 – inches and has a maximum tension capacity of 85 Newtons. It is our “Automatic” frame and it is 300% stronger than the MZX model even if the printer chooses never to go above 40-45 Newtons. Although the MZX-UL can be used for automatic printing, we recommend the M3-UL for medium to large shops with multiple automatics who do not want any screen tension limitations.
Silver bolts / M3-UL: 55 ft/lbs max.
Black bolts / M3-UL: 55 ft/lbs max.