Carlson Design PT, CTx, and STx plotter/cutters ride on four fully captive, friction-reducing, ball-bearing composite wheels. The composite wheels are designed to wear instead of your aluminum track. When wheels wear beyond adjustment, it is necessary to replace. We recommend you replace all 4 track trolleys at the same time. Trolley wheels are adjusted with our Trolley tool (included with set of 4).
Track Trolley $175/each. 4 Set $150/each.