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PMU machine stroke length and vibration guide comparing 2.5mm and 3.5mm mechanical travel
2.5mm Stroke

PMU Machine Stroke Length & Vibration Guide: 2.5mm vs 3.5mm, Control & Technique

PMU machine stroke length describes part of the machine’s mechanical movement—not the depth of pigment implantation. This guide explains 2.5mm versus 3.5mm stroke, adjustable and fixed-stroke machi...
Luxury technical illustration explaining how different PMU voltage settings affect needle frequency, pigment saturation, and skin response across multiple permanent makeup techniques.
Beginner Guide

PMU Voltage Settings: How to Balance Machine Output and Hand Speed

PMU voltage settings cannot be copied reliably from one machine to another. This practical guide explains how machine output interacts with stroke, cartridge choice, needle protrusion and hand spee...