Submarine Tattoo Pen

The machine is built around a direct-drive, straight-bar structure with a reinforced 1.5 mm drive rod, delivering immediate power transfer combined with the natural resilience characteristic of direct-drive systems. At the same operating frequency, this design achieves high pigment saturation efficiency and strong tactile feedback. It is optimized to perform efficiently within a relatively low frequency range of 45–65 Hz (4.0–5.8 V, 2700–3900 RPM), allowing effective color packing while offering improved control over skin trauma. Crucially, its sweet spot is slow- to mid-frequency operation. At slower cadences the effective puncture rate (insertion efficiency) is exceptionally high; when your hand speed and the machine’s operating frequency are well synchronized, you can clearly feel the increase in penetration efficiency and stability in the needle path.

As a result, overall working efficiency is significantly enhanced, and clients experience reduced skin damage and improved healing outcomes after tattooing. The design intentionally relies on proven, mature technologies rather than experimental solutions. The core objective is precise system matching—optimizing each component so that, together, they deliver a superior and consistent working experience.

To reduce overall weight and size, larger motors and circuit boards are not used. Based on extensive real-world use, this configuration is sufficient to meet professional demands. The weight distribution is deliberately tuned for a balanced, neutral feel that sits naturally in the hand; the overall grip comfort is high, and even during long sessions, the wrist does not feel overloaded—supporting an average daily workload of roughly eight hours with less cumulative strain and better focus on artistic execution.

Additionally, the shortened body length provides clear advantages when working on recessed or tight anatomical areas, such as the neck, where a longer machine body could otherwise cause obstruction or limit maneuverability.

Strengths

• Compact & Lightweight
  Short body, low weight, slim diameter, minimal rear-heavy feel for excellent control and comfort.
• Multiple Stroke Options
  2.5–5.0 mm interchangeable stroke cams to match different techniques and styles.
• Powerful Direct Drive
  Reinforced 1.5 mm drive rod delivers direct power, strong feedback, and high pigment saturation at the same frequency.
• Stable Needle Adjustment
  Needle depth adjustment does not change needle direction; upward-facing screen for easy viewing.
• Simple & Efficient
  Streamlined functions, easy to use, designed for professional efficiency.

Weaknesses

• No Direct Frequency Control Voltage-only adjustment (voltage–frequency reference chart included).
• Manual Stroke Changes Stroke requires cam replacement, less convenient but more stable
• More Noticeable Noise & Vibration Open-window design reduces sealing compared to fully enclosed pens.
• Stronger Vibration at Long Strokes At 4.0 mm+ strokes under high voltage/frequency, vibration is more pronounced due to strong direct-drive feedback.

Best For

• Artists who prefer strong feedback and direct power

• Long working sessions where light weight reduces hand fatigue

• Realism, black & grey, and controlled color packing

• Artists who value proven, stable mechanics over complex electronics

Not Ideal For

• Artists sensitive to vibration at long strokes

• Those who require direct frequency (Hz) adjustment

• Users who prefer ultra-quiet, fully sealed pen machines

For 18350 Flat top battery works around 3-5 hours per battery

For 18500 Flat top battery works around 5-8 hours per battery, all the usage depends on the voltage, and the resistence level.

• Dimensions: L 112mm x W 30.5mm (4.4'' x 1.2'') With 18350 battery Weight 138 grams (4.9oz) 
• Dimensions: L 127mm x W 30.5mm (5'' x 1.2'')   With 18500 battery Weight 150 grams (5.3oz)

User Manual - The Submarine Tattoo Pen (click link)