When a tattoo pen is turned on without a needle cartridge installed, especially when held upside down, you may hear a clicking or rattling sound.
In most cases, this is normal and does not indicate a defect or damage.
Why Does This Happen?
1. Performance-Oriented Transmission Design
Inside the machine, there is a sliding transmission component that is not held in place by a spring.
Without a cartridge installed, the drive rod may not remain firmly pressed against the cam plate, causing the two parts to make light contact while the motor is running.
The drive mechanism is intentionally designed without additional restrictions or spring resistance, allowing the machine to transfer power efficiently and deliver maximum torque.
The internal components are also fully lubricated to ensure smooth movement.
For this reason, the sound is a normal result of the machine’s performance-focused design, not a manufacturing defect or quality issue.
2. The Contact Position May Shift During Shipping
Movement and vibration during shipping may slightly shift the contact position between the cam plate and the sliding component.
This is also normal. After installing a cartridge and running the machine for a short time, the internal components will usually return to their correct working position.
How to Test the Machine
- Turn off the tattoo pen and securely install a compatible needle cartridge.
- Hold the machine in its normal operating position.
- Turn it on and let it run for a short time.
Watch the Video Demonstration
If the sound disappears, the machine is working normally.
If the unusual sound continues after the cartridge has been correctly installed, please contact customer support for further assistance.
