Round Shader Tattoo Needle Round Liner PMU Cartridges

Master Detail & Outline with Unrivaled Precision

RG BIO stands as a premier manufacturer of medical-grade tattoo and permanent makeup (PMU) supplies, offering a comprehensive range of Liner Cartridge Needles. Designed for artists who demand crisp, clean lines and intricate detail work, our liners are engineered for ultimate precision and stability. We specialize in providing full OEM/ODM services, enabling brands to customize every aspect of their liner cartridges—from needle configuration and taper to housing design and private labeling—all backed by our stringent manufacturing standards.

1. What Are Liner Cartridges?

Liner cartridges are specifically designed for creating sharp lines, fine details, and intricate patterns. They feature needles grouped tightly together in a circular formation, allowing for a concentrated and precise pigment delivery with minimal passes. They are the backbone for all outline work, fine line tattooing, and detailed PMU applications, ensuring clean edges and controlled pigment implantation.

2. Our Liner Configurations & Applications

We manufacture a diverse array of liner types, each meticulously crafted to suit specific artistic demands and techniques:

• Round Liner (RL):
  • Design: Needles are soldered in a tight, circular grouping, coming to a fine point.
  • Applications: The go-to for all general outlining, intricate detail work, and script tattooing. In PMU, RLs are perfect for creating crisp eyeliner, defined lip liner, and foundational strokes for nano brows or scalp micropigmentation (SMP).
• Tight Liner / Super Tight Liner:
  • Design: An even more compact grouping than standard RLs, often with fewer needles (e.g., 1RL, 3RL), for ultra-fine lines.
  • Applications: Ideal for hyper-realistic hair strokes in PMU brows, delicate lash enhancement, micro-textures, and extremely fine line tattoo art.
• Single Needle (RL1):
  • Design: Consisting of just one single, ultra-fine needle.
  • Applications: Used for the most delicate and precise work, such as single dot details, tiny pixels in PMU, or extremely subtle stippling.

3. Why Partner with RG BIO for Liner Cartridges?

• Medical-Grade Production: Manufactured in our Class 100,000 automated cleanroom, ensuring pharmaceutical-level hygiene and unparalleled consistency.
• Patented Safety Membrane: Our unique safety membrane design actively prevents ink backflow, protecting your machine from contamination and safeguarding client health.
• Certified Sterility: Every cartridge undergoes rigorous Ethylene Oxide (EO) Gas sterilization, meeting the highest global standards for medical device safety.
• Premium Materials: Crafted from durable 316L surgical stainless steel and medical-grade plastics for superior performance and longevity.
• Full Customization: We offer extensive OEM/ODM capabilities for your liner cartridges, including various needle diameters (0.18mm – 0.35mm), taper lengths (super long, long, medium), housing colors, and custom packaging designs to perfectly match your brand vision.