What is machine stroke?

The stroke of a tattoo machine refers to the distance traveled by the armature bar, from its most upright position to its most down position. In rotary tattoo machines, the stroke indicates the travel required for one rotation. The length of the stroke increases as the bearing moves farther away from the center of the cam.

Machine stroke, in contrast to needle depth, pertains to the distance the needle hangs out of the tube. It's important to note that needle depth does not impact the machine stroke. However, one may opt to adjust the machine stroke to accommodate a different needle depth if necessary.

Tattoo machines offer a range of stroke sizes or the capability to adjust the stroke within a specific range, such as 2.3mm to 4.2mm.

• Short Stroke Length: 1.8 – 2.5 mm. Short stroke machines move faster because they have less distance to travel in each up-and-down motion.
• Medium Stroke Length: 3.5mm. This is widely used by tattoo artists. If a tattoo machine is not adjustable, it most likely will come with this stroke length, or one very close.
• Long Stroke Length: 4mm+. Long stroke machines hit harder because they have more space to “wind up” before hitting the skin.

  Why is machine stroke important?

  
  

  The machine stroke determines:

  • How hard the machine hits.

  • How fast the needle moves.

  • Your max needle depth.

  How hard the machine hits. By traveling a greater distance in each upward and downward motion of the needle bar (in the case of a coil tattoo machine) or cam wheel (in the case of a rotary tattoo machine), a longer stroke provides the needle with increased momentum. This enhanced momentum empowers the machine, enabling effortless utilization of larger needle groupings.

  How fast the needle moves. How quickly the needle moves in and out of the tip.

  The max needle depth. When utilizing a short stroke, the extension of your needles is restricted. In each upward and downward motion, the needle's depth must be sufficiently short to access the ink inside the tip of the tube.

   

  
  

  When to use different strokes?

  A shorter stroke (2.3-3.0mm) is good for applying soft black and grey. Creating layers of ink often necessitates multiple passes in this style. The stroke's gentler impact allows for the creation of seamless blends without causing excessive skin damage. However, a short stroke is unsuitable for lining purposes. It lacks the necessary power to accurately guide the lines, and if the needle is set too deep, it fails to fully retract into the tube with each cycle. Consequently, the needle is unable to replenish ink from the tube tip, making it nearly impossible to achieve solid lines in a single pass. Moreover, lining necessitates extending the needle further out of the tube for improved precision, which is unachievable with a short stroke. As a result, ink gathers on the skin, potentially obscuring the stencil. Short stroke machines, to recap, are ideal for clients with thin to medium skin thickness in all areas of the face (brows, lips, and eyes). However, it is advisable to avoid using them on thicker or resistant skin. 

   

  When choosing a tattoo pen, beginners often see different stroke lengths mentioned. Shorter strokes are usually better for softer shading and smooth practice work. Medium strokes are more balanced and can be used for everyday tattoo practice. Longer strokes provide stronger impact, making them useful for lining and color packing.

  For beginners, choosing only one fixed stroke length can be confusing. A machine that feels too soft may not be strong enough for clean lines, while a machine that hits too hard may be more difficult to control for shading and blending.

  That is why an adjustable stroke tattoo pen is a practical choice for a starter kit. Instead of buying different machines for different techniques, one adjustable machine gives beginners more flexibility to practice lining, shading, filling, and basic blending.

  Recommended machine:Yikexuanli V1 Pro Adjustable Stroke Wireless Tattoo Pen Advanced

  With multiple adjustable stroke settings, this machine can cover most beginner practice needs in one setup. Beginners can use lower settings for softer practice work, medium settings for daily tattoo training, and higher settings when they need stronger lining or more solid color packing.

  For new artists, this means less time comparing different machines and more time building real tattoo skills. It is a simple, flexible, and cost-effective choice for anyone starting their tattoo practice journey.