1. Introduction
The Ambition Soldier Pro 520 is a professional wireless rotary tattoo pen machine designed for precision and consistent performance. It features a high-torque coreless motor, a long-lasting battery, and an adjustable stroke mechanism to accommodate various tattooing styles.
2. Safety Information
- This device is intended for professional use only.
- Ensure proper sterilization of all equipment before each use.
- Always wear appropriate personal protective equipment (PPE).
- Keep the machine away from water and other liquids. It is not water resistant.
- Do not attempt to disassemble or repair the machine yourself. Contact official support for service.
- Use only the original charging cable and a 5V/2A adapter for charging.
- Avoid completely draining the battery, as this can damage it.
3. Package Contents
The Ambition Soldier Pro 520 package includes:
- 1x Cordless Tattoo Machine (Ambition Soldier Pro 520)
- 1x RCA Adapter
- 1x Extra 32mm Grip
- 1x RCA Cable
- 1x Charging Cable (Type-C)
- 1x Accessory Pouch
- 1x Hard-shell Zippered Case
4. Product Features
4.1 Dual Grip & Balanced Design
The machine is constructed from high-quality aluminum alloy and includes two interchangeable grips: a 42mm original grip (309g) and an extra 32mm grip (242g). Both grips are designed for balanced weight distribution to minimize hand fatigue during extended tattooing sessions.

Image: The Ambition Soldier Pro 520 tattoo machine shown with both the 42mm and 32mm grips, highlighting the ergonomic design for reduced hand fatigue.
4.2 Ultra High Torque Coreless Motor
Equipped with a 520g.cm coreless motor, the Soldier Pro 520 delivers strong, stable, and smooth performance. It operates with minimal noise and vibration, suitable for both fine lines and solid shading, ensuring consistent needle output.

Image: An internal diagram illustrating the 520g.cm ultra high torque coreless motor, emphasizing its power and smooth operation for various tattooing techniques.
4.3 Adjustable Stroke Control
The machine features an adjustable stroke length from 2.2mm to 4.2mm, with six distinct gear positions. This allows artists to fine-tune the machine's performance for lining, shading, and coloring by rotating the adjustment knob.

Image: A close-up of the Ambition Soldier Pro 520's adjustable stroke mechanism, showing the numbered settings from 2.2mm to 4.2mm for precise control.
4.4 High-Definition Display and Battery
The integrated HD screen provides real-time information including voltage, hertz, battery level, working time, and a billing function. The 2400mAh battery offers 7–8 hours of continuous operation and recharges in 2–3 hours via the Type-C fast charging port. It also supports J-Jump start and S-Standard modes for different needle types.

Image: The high-definition display of the Ambition Soldier Pro 520, showing battery percentage, time, hertz, voltage, and mode settings.
4.5 Universal Cartridge Needle Compatibility
The Soldier Pro 520 is compatible with most cartridge needles available on the market. Its click-adjust grip allows for precise needle depth adjustment. It is also compatible with Ambition Mars-U P1 disposable grips, which helps reduce setup time and cross-contamination risks.

Image: The Ambition Soldier Pro 520 machine with a disposable grip attached, illustrating its compatibility and ease of use for hygiene and efficiency.
5. Setup
- Charge the Battery: Before first use, fully charge the machine using the provided Type-C charging cable and a 5V/2A adapter. The HD display will show charging progress.
- Attach Grip: Select either the 42mm or 32mm grip and securely attach it to the machine body.
- Insert Cartridge Needle: Twist and insert your preferred cartridge needle into the machine's front end until it clicks into place.
- Adjust Needle Depth: Rotate the grip to adjust the needle depth to your desired setting.
6. Operating Instructions
6.1 Power On/Off
- To power on, press and hold the power button until the display illuminates.
- To power off, press and hold the power button until the display turns off.
6.2 Adjusting Voltage
- Use the '+' and '-' buttons on the display panel to adjust the output voltage. Each press adjusts the voltage by 0.1V.
- The machine can drive tattoo needles smoothly even at 2V. The highest voltage is 12.0V.
6.3 Switching Startup Modes
- Quickly double-click the power button to switch between startup modes.
- 'S' Mode: Standard startup mode.
- 'J' Mode: Jump start mode, suitable for certain needle types requiring an initial power boost.
6.4 Billing Function
- In pause mode, short press the key to adjust the billing amount by 0.1.
6.5 Visual Guide to Operation
Video: This video demonstrates the key operational features of the Ambition Soldier Pro 520 Tattoo Gun, including charging, needle depth adjustment, stroke options, voltage adjustment, and startup modes.
7. Maintenance
- Clean the machine exterior with a soft, damp cloth after each use.
- Ensure no liquids enter the internal components.
- Store the machine in its hard-shell zippered case to protect it from dust and damage.
- Regularly inspect the charging port and cables for any signs of wear or damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Machine does not turn on | Low battery; Power button not pressed correctly | Charge the battery; Press and hold the power button firmly. |
| Inconsistent needle output | Incorrect stroke setting; Faulty cartridge needle | Adjust stroke length; Replace cartridge needle. |
| Machine not charging | Damaged cable/adapter; Loose connection | Check cable and adapter; Ensure secure connection. Use original accessories. |
| Excessive vibration or noise | Loose components; Damaged motor | Ensure all parts are securely fastened. If issue persists, contact support. |
9. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 5.9 x 3 x 2.3 inches |
| Item Weight | 0.88 Pounds (14.08 ounces) |
| Material | High-quality Aluminum Alloy |
| Motor | 520g.cm Ultra High Torque Coreless Motor |
| Adjustable Stroke Length | 2.2mm - 4.2mm (6 gear positions) |
| Battery Capacity | 2400mAh |
| Operating Time | 7-8 hours (on a full charge) |
| Charging Time | 2-3 hours (with Type-C fast charging) |
| Output Voltage | Adjustable, 0.1V increments |
| Display | HD Screen (Voltage, Hertz, Battery Level, Working Time, Billing Function) |
| Startup Modes | Standard (S) / Jump Start (J) |
| Grip Sizes Included | 42mm (309g) and 32mm (242g) |
| Water Resistance | Not Water Resistant |
| UPC | 810174734805 |
10. Warranty and Support
The Ambition Soldier Pro 520 Wireless Rotary Tattoo Pen Machine is backed by a 1-year warranty. For any repair resolutions, technical assistance, or warranty claims, please contact official Ambition support.
Contact information can typically be found on the manufacturer's website or through your purchase platform.




