Magnum Gen 2 Round Liner Tattoo Cartridges Explained

July 17, 2026 - 2 weeks ago

Choosing the right round liner cartridge is one of the most important decisions for achieving clean, consistent linework. Whether you're creating ultra-fine script, bold traditional outlines, geometric designs or intricate ornamental tattoos, the cartridge you use has a direct impact on precision, ink flow and control.

The Magnum Gen 2 Round Liner Tattoo Cartridges range has been developed to provide professional tattoo artists with stable needle performance, reliable ink delivery and a broad selection of configurations for different tattooing styles. Featuring a triple stabilisation system, medical-grade materials and multiple needle options, the range is designed to support everything from delicate detail work to saturated outlines.

This guide explains how Magnum Gen 2 Round Liner cartridges work, their key features, available specifications and how to choose the right configuration for your style of tattooing.

What Are Magnum Gen 2 Round Liner Cartridges?

Magnum Gen 2 Round Liner Tattoo Cartridges are designed for precision linework. Their tightly grouped circular needle configuration creates clean, controlled lines, making them ideal for outlining, lettering, geometric tattoos, ornamental work and fine details. The Magnum Gen 2 cartridges range also introduces triple needle stabilisation, a comfort finger ledge and improved cartridge visibility to support consistent performance during long tattoo sessions.

The Core Engineering: What Makes Gen 2 Round Liners Different?

Standard lining cartridges often suffer from internal friction and needle play, leading to "needle wobble" that can blur fine lines or cause uneven saturation. When engineering the Magnum Gen 2 range, we focused directly on solving these workflow challenges with premium materials and structural upgrades.

1. Advanced Triple Stabilisation System

The standout feature of the Magnum Gen 2 Round Liner is its integrated triple stabilisation system. The needles are securely supported at three critical internal contact points throughout the housing. By drastically minimising unwanted lateral movement, this system gives you smoother, highly controlled strokes, making single-pass linework highly repeatable.

2. Integrated Comfort Finger Ledge

Long lining sessions can lead to hand fatigue and grip slippage. Each Gen 2 cartridge features a built-in, ergonomic comfort finger ledge. This provides additional grip width right where you need it, maximising tactile control and comfort when executing intricate script or pulling sweeping master lines.

3. Ultimate Visibility Housing & Identification

The housing is moulded from crystal-clear, medical-grade polycarbonate (PC) plastic to offer flawless visibility of your ink reservoir and needle depth. To streamline your setup during busy sessions, the cartridges are subtly colour-coded, with the exact needle sizing stamped directly onto the housing for quick identification at a glance.

4. Silicone Safety Membrane

Hygiene is paramount. Fitted with a high-tension silicone safety membrane, these cartridges form an airtight fluid barrier. This keeps ink, blood, and airborne contaminants from travelling back into your machine or grip, protecting your equipment and maintaining absolute cross-contamination protection.

Technical Specifications & Variants

The Gen 2 Round Liner range provides an exhaustive selection of sizes, gauges, and tapers to match your precise artistic style:

• Configurations Available: Standard Round Liner (RL) and specialised variations.

• Needle Grouping Sizes: From ultra-fine 01RL up to heavy-duty 18RL.

• Needle Gauges & Diameters:

• #06 (0.20mm): Tailored for micro-realism, fine ornamental lines, and Permanent Makeup (PMU).

• #08 (0.25mm Bugpin): Perfect for delicate fine-line script and geometric details.

• #10 (0.30mm Standard): The ultimate all-rounder for daily studio lining.

• #12 (0.35mm Large Standard): Delivers rapid ink flow for bold traditional outlines.

• Needle Taper Options: Short (2.5mm), Medium (3.5mm), Long (6.5mm), and Extra Long (8mm).

• Needle Finishes: Available in both ultra-smooth Polished and pigment-grabbing Textured options to adjust your ink-holding capacity.

• Premium Materials: Constructed using razor-sharp, medical-grade 304 stainless steel needles.

Choosing the Right Needle Diameter

Selecting the correct needle diameter directly affects line thickness, ink flow, and overall control. Magnum Gen 2 Round Liner cartridges are available in four professional diameters, each suited to different tattooing styles:

• 0.20mm (#06 Extra Bugpin)

• Best For: Ultra-fine line tattoos, micro realism, tiny lettering, intricate ornamental work, permanent makeup (PMU).

• Key Benefits: Produces extremely delicate lines with maximum precision and control.

• 0.25mm (#08 Bugpin)

• Best For: Fine line tattoos, script, delicate geometric work, and smooth outlines.

• Key Benefits: Offers slightly greater pigment flow while maintaining excellent precision.

• 0.30mm (#10 Standard)

• Best For: Everyday linework, mixed tattoo styles, general studio work, and medium outlines.

• Key Benefits: A versatile, all-around option balancing precision with efficient ink delivery.

• 0.35mm (#12 Standard)

• Best For: Bold outlines, American Traditional, Neo-Traditional, and decorative tattoos.

• Key Benefits: Delivers greater pigment flow for deeply saturated, high-contrast linework.

Choosing the Right Needle Taper

Needle taper influences how pigment enters the skin and how the cartridge feels during a session. Magnum Gen 2 Round Liners are available with four distinct taper lengths:

• Short Taper (2.5mm)

• Best For: Traditional tattooing, thick outlines, and heavy saturation.

• Key Benefits: Maximises pigment delivery for bold, solid lines.

• Medium Taper (3.5mm)

• Best For: General linework, everyday outlining, and mixed tattoo styles.

• Key Benefits: Provides an excellent, dependable balance between ink flow and precision.

• Long Taper (6.5mm)

• Best For: Fine outlines, lettering, and decorative work.

• Key Benefits: Offers greater precision while maintaining smooth, consistent ink flow.

• Extra Long Taper (8mm)

• Best For: Fine line tattoos, script, micro realism, and delicate ornamental work.

• Key Benefits: Creates highly controlled, precise linework with gradual pigment delivery.

Available Needle Sizes

Magnum Gen 2 Round Liners are available in groupings from 01RL to 18RL, allowing artists to choose the appropriate size for different styles and line weights.

Polished vs Textured Needles

Magnum Gen 2 Round Liner cartridges are available with both polished and textured needle finishes, allowing artists to choose the option that best suits their tattooing style and technique.

Note: The ultimate choice between polished and textured finishes largely comes down to individual technique and personal workstation preference.

Universal Compatibility

You don't need a proprietary machine setup to utilise the triple-stabilised precision of the Gen 2 range. Built with an industry-standard universal connection, these cartridges click securely into all universal cartridge grips and popular professional rotary pen setups, including the Bishop Power Wand, Dragonhawk Fold 2 Pro, AVA EP7+, and more systems.

Every single box contains 10 cartridges, each individually blister-packed and EO (Ethylene Oxide) gas sterilised, ensuring they arrive at your studio sterile and ready for single professional use.

Who Are Magnum Gen 2 Round Liners Best For?

These cartridges are well-suited to artists working across a wide range of tattoo styles, including:

• Fine line specialists

• Script artists

• Ornamental tattooists

• Geometric artists

• Traditional tattoo artists

• Illustrative tattooists

• Blackwork artists

• Apprentices developing line control

• Professional studios requiring consistent cartridge performance

Their extensive range of diameters, tapers and needle groupings makes them suitable for both highly detailed work and bold, saturated outlines.

Final Thoughts

Magnum Gen 2 Round Liner Tattoo Cartridges combine precision engineering with practical studio-focused features to support consistent, reliable linework across a wide range of tattoo styles. With triple needle stabilisation, a comfort finger ledge, transparent housing and medical-grade materials, they are designed to provide greater control, improved visibility and dependable performance throughout every session.

Available in multiple needle sizes, diameters, tapers and both polished and textured finishes, the range offers the flexibility to tackle everything from ultra-fine script and ornamental work to bold traditional outlines. Whether you're refining delicate details or creating strong, saturated linework, selecting the right Round Liner configuration helps ensure your equipment is matched to the demands of the tattoo.

Ready to experience triple-stabilised precision without breaking the bank? Head over to Magnum Tattoo Supplies to explore our complete technical range, compare advanced configurations, and find the perfect cartridge collection for your tattooing style! 

FAQs

What are Round Liner tattoo cartridges used for?

Round Liners are primarily used for outlines, lettering, fine details, geometric work and any tattoo requiring clean, controlled linework.

Are Magnum Gen 2 Round Liners suitable for beginners?

Yes. Their stable needle design and wide range of configurations make them suitable for apprentices learning linework under appropriate supervision, as well as experienced professionals.

What needle diameter is best for fine-line tattoos?

Most artists choose 0.20mm or 0.25mm Round Liners paired with a Long or Extra Long Taper for delicate linework and script.

What's the benefit of triple stabilisation?

The triple stabilisation system helps reduce unwanted needle movement, improving consistency, precision and overall control during tattooing.

Are the Magnum Gen 2 Round Liner cartridges sterile?

Yes. Every cartridge is individually blister-packed and EO gas sterilised before packaging.

How many cartridges come in each box?

Each box contains 10 individually sterile cartridges.