Liner Cartridges

Liner cartridges for linework that needs a steady hand

Liner cartridges are built for outlines, fine script, technical patterns, dot work edges and other line-heavy tattoo work. The needle grouping sits inside a cartridge body, so artists can swap sizes during a session without changing the full machine setup. That is useful in busy studios where speed, consistency and tidy station handling matter.

For artists working from cartridge-based machines, the main choice is the liner grouping itself. Small groupings suit fine detail and lighter contour work, while larger groupings are used for thicker outlines and more defined edges. The right choice depends on the machine feel, the tube grip, the artist’s hand speed and the way the client’s skin takes the line, so a studio often keeps more than one size on hand.

In South African studios, liner cartridges are usually ordered alongside matching needles, grips, inks and sterile single-use supplies to keep stock tidy. Coastal humidity in places like Cape Town and Durban also makes sealed storage useful, especially where consumables are kept near rinse stations or packed in bulk for dispatch to clients.

Common liner sizes and how they are used

Liner cartridges are grouped by needle count and by how the needles are arranged. Finer counts are used for precise linework and lighter detail, while larger counts are chosen for bolder outlines and more visible borders. A studio may keep several liner groupings in rotation, depending on the type of work booked that week.

• 1RL to 3RL for very fine lines, small lettering and controlled detail
• 5RL to 7RL for standard linework, script and general outlining
• 9RL and above for heavier outlines and stronger edge definition
• Round liner groupings for tighter line control and cleaner transitions
• Textured or smooth needle flow depending on the feel preferred by the artist

Needle taper, diameter and grouping count all affect how the line lays into the skin. A tighter grouping can feel firmer and more precise, while a looser grouping may suit broader line passages. When ordering, it helps to confirm the grouping style the artist prefers, rather than assuming one liner size will suit every machine or every style of work.

Cartridge fit, lock feel and machine matching

Cartridge liners need to seat correctly in the machine and in the grip system being used. Most artists check the cartridge lock feel, the needle travel and the way the cartridge sits under pressure before using it in a session. A cartridge that does not sit properly can affect line control, so fit is worth checking before stock goes onto the shelf.

When matching cartridges to a machine, confirm the following details:

• Cartridge system compatibility with the machine and grip
• Needle grouping count, such as 1RL, 3RL, 5RL or 9RL
• Needle taper and diameter
• Membrane or anti-backflow style, if preferred by the artist
• Pack size required for the studio or for bulk stock
• Whether the setup is for fine detail, standard lining or bold outlines

Some studios in Johannesburg and Pretoria keep separate liner stocks for walk-in work and booked pieces, because different artists may prefer different grouping feels. A clean label system at the storage shelf makes it easier to pull the right size without mixing liner cartridges with shading options or other consumables.

Storage, hygiene and single-use handling in the studio

Liner cartridges should be stored in a dry, clean place away from dust, direct sun and heavy handling. In coastal areas such as Cape Town and Gqeberha, a sealed storage box helps keep cartons in better condition where humidity is part of daily studio life. Stock should stay in its original packaging until it is needed for setup.

For studio hygiene, cartridge handling should stay organised from shelf to work station. Artists and support staff usually separate clean stock from used items, keep unopened cartons together and maintain a clear process for opening, fitting and discarding single-use consumables according to local health regulations.

• Keep liner cartridge cartons sealed until use
• Store away from sinks, wash-up splashes and loose pigment handling
• Use a labelled drawer or tray for sizes that are opened but not yet used
• Dispose of single-use items according to studio procedure and municipal rules where relevant
• Check packaging integrity before a session starts

Good storage also helps with stock control. If a studio runs a mixed team, a clear count of liner cartridges by size makes reordering easier and cuts down on last-minute shortages before a busy weekend.

Where liner cartridges suit the work

Liner cartridges suit studios that want quick changes between sizes during a session and a tidy cartridge-based workflow. They are used for fine line tattoos, script, geometric work, black outline passes and detail sections that need controlled movement. Artists who prefer cartridge machines often keep liner cartridges in several counts so they can shift from thin detail to stronger outline work without changing the full hand feel of the setup.

They also suit studio teams that handle a range of bookings across the week, from small appointment pieces to larger sessions that need repeated line passes. For online supply orders, it helps to group liner cartridges with matching cartridge needles, machine grips, sterile single-use supplies and storage items so the stock on hand matches the kind of work being done.

InkX Tattoo supplies to studios across South Africa, including Cape Town, Johannesburg, Durban, Pretoria and Gqeberha, with support for stock list help, range grouping advice, cartridge match help and dispatch updates through the enquiry form on our contact page.

Ordering details that keep the stock correct

Before placing an order, confirm the exact liner grouping, the preferred taper, the pack quantity and the machine compatibility. If the studio works with more than one artist, list the sizes needed by chair or by station so the right cartridge can be pulled for each setup. This avoids mix-ups when one artist uses finer liners and another works with heavier outlines.

It also helps to note whether the order is for regular studio use, a new studio kit, a seasonal restock plan or a bulk order for multiple stations. Teams often order liner cartridges with consumables that move quickly, such as grips, wrap items, barrier supplies and aftercare-free studio consumables. For dispatch into busy areas like Cape Town CBD, Bellville, Somerset West, Stellenbosch and the wider metro, correct item labels and counts matter.

For support on stock list help, cartridge match help, station planning or product substitutions, use the enquiry form on our contact page and include the machine type, liner count and pack size needed. That gives the warehouse and procurement team a clear order list to work from, especially when a studio needs the same groupings repeated across several chairs.