1. Product Overview
The POSEIDON V3 Tattoo Cartridge Needles are designed for professional tattoo artists, offering precision and safety. This package includes 30 disposable, sterilized needles in various mixed sizes, including 5RL, 7RL, 5RM, 7RM, 5M1, and 7M1. Each cartridge features a membrane safety system to prevent ink backflow and ensure hygienic operation.

Image 1.1: POSEIDON V3 Tattoo Cartridge Needles packaging and individual cartridges.
Key Features:
- High-Quality Material: Needles are crafted from 316 stainless steel for durability and sharpness.
- Sterilization: Each cartridge is individually sterilized by EO Gas and blister-packed for safety.
- Anti-Backflow Design: Equipped with soft rubber parts to prevent ink and contaminants from flowing back into the machine.
- Strong Compatibility: Compatible with all standard rotary cartridge tattoo machines.
- Efficient Design: Features a fast rebound membrane and high stability for smooth operation.

Image 1.2: Detailed diagram of POSEIDON V3 needle cartridge components.
2. Safety Information
Adherence to strict hygiene and safety protocols is paramount when using tattoo needles. These needles are designed for single-use only.
Important Safety Guidelines:
- Sterilization: Each needle cartridge is sterilized with Ethylene Oxide (EO) gas and sealed in individual blister packaging. Do not use if the packaging is damaged or opened.
- Single-Use Only: These cartridges are strictly for single-use. Reusing needles can lead to cross-contamination and severe health risks.
- Professional Use: This product is intended for use by trained and licensed tattoo professionals only.
- Disposal: Dispose of used needles immediately in a designated sharps container according to local regulations.
- Storage: Store in a cool, dry place away from direct sunlight and moisture.

Image 2.1: EO Gas sterilized and individually blister-packed needle cartridges.
3. Setup
Proper setup ensures optimal performance and safety during tattooing procedures.
Installation Steps:
- Ensure your hands are gloved and clean.
- Carefully open the individual blister pack of the desired needle cartridge.
- Insert the cartridge into your rotary tattoo machine's grip. Twist gently to secure it in place. The cartridge is designed for easy assembly.
- Verify that the needle is securely seated and extends properly from the tip.
- Adjust the needle depth on your machine as required for your tattooing technique.
Video 3.1: This video demonstrates the unpacking and installation process of POSEIDON V3 tattoo cartridge needles into a rotary tattoo machine.
4. Operating Instructions
POSEIDON V3 cartridges are designed for various tattooing applications, from fine lines to shading and solid color packing.
Needle Configurations and Their Uses:
- Round Liners (RL): Used for creating crisp lines and detailed work.
- Round Shaders (RS): Ideal for soft shading, blending, and color packing in smaller areas.
- Magnum (M1/RM/CM): Used for larger areas of shading, color packing, and blending. Magnum needles come in various forms like Flat Magnum (M1), Curved Magnum (CM), and Weaved Magnum (RM).

Image 4.1: Visual representation of various needle configurations.

Image 4.2: Close-up of RS, RL, M1, and CM needle types.
General Operation:
- Ensure your tattoo machine is properly powered and set to the desired voltage.
- Dip the needle tip into sterile tattoo ink. The anti-backflow membrane helps hold ink efficiently.
- Apply the needle to the skin surface with appropriate pressure and angle, depending on the desired effect (lining, shading, or filling).
- Monitor the ink flow and needle performance throughout the procedure.
- After completing the tattoo, carefully remove the needle cartridge from the machine.
Video 4.1: This video demonstrates the POSEIDON V3 tattoo cartridge needles in use, showing their smooth operation during tattooing.
5. Maintenance
As POSEIDON V3 Tattoo Cartridge Needles are disposable, maintenance primarily involves proper handling and disposal.
Post-Use Procedures:
- Immediate Disposal: After each single use, immediately place the entire used needle cartridge into an approved sharps container.
- Do Not Clean or Reuse: Attempting to clean or re-sterilize these needles is unsafe and not recommended.
- Container Management: Ensure sharps containers are properly sealed and disposed of according to local health and safety regulations for biohazardous waste.
6. Troubleshooting
While POSEIDON V3 needles are designed for reliability, here are some common points to check if issues arise.
Common Issues and Solutions:
- Poor Ink Flow:
- Ensure the needle is fully submerged in ink when dipping.
- Check if the machine's voltage is appropriate for the needle type and desired ink saturation.
- Verify the needle is not bent or damaged (do not use if damaged).
- Needle Not Seating Properly:
- Ensure the cartridge is fully inserted and twisted into the machine's grip until secure.
- Confirm compatibility with your specific rotary tattoo machine model.
- Excessive Vibration/Noise:
- Check if the needle cartridge is securely attached to the machine.
- Inspect the machine for any loose parts or damage.
- Backflow of Ink:
- POSEIDON V3 needles feature an anti-backflow membrane. If backflow occurs, discontinue use immediately as the cartridge may be defective.
7. Specifications
| Attribute | Detail |
|---|---|
| Product Dimensions | 6.3 x 3.15 x 1.97 inches |
| Item Weight | 4.59 ounces |
| Manufacturer | UP TATTOO SUPPLY |
| Brand | UPTATSUPPLY (POSEIDON) |
| Material | 316 Stainless Steel Needles, Medical Grade Plastic Shell |
| Sterilization | EO Gas Sterilized |
| Needle Types Included | 5RL, 7RL, 5RM, 7RM, 5M1, 7M1 (Mixed 30PCS) |
| Compatibility | All standard rotary cartridge tattoo machines |
| Water Resistance Level | Not Water Resistant |
| UPC | 787502961472 |
| ASIN | B0CL6L919W |
8. Warranty and Support
UPTATSUPPLY is committed to customer satisfaction and product quality.
Warranty Information:
The product comes with a satisfaction guarantee. If you are not 100% satisfied, UPTATSUPPLY provides a replacement or full refund for all products. No specific reason is needed for returns or replacements, ensuring a smooth and simple process.
Customer Support:
For any inquiries, issues, or support needs regarding your POSEIDON V3 Tattoo Cartridge Needles, please contact UPTATSUPPLY customer service through the platform where the purchase was made. Please have your order details ready for faster assistance.