Bugpin Round Liner Cartridges for Ultra-Detailed Lines
R&G Bio manufactures bugpin round liner tattoo cartridges for distributors, studios and PMU brands — slimmer needles for a lighter, more precise feel on detailed work.
Bugpin cartridges use slimmer needles than standard cartridges, giving artists a lighter touch for fine lines and detail. Ink flow stays consistent even at the smaller gauge, and the needle never wobbles — lines come out clean from start to finish.
Every cartridge is EO gas sterilized, batch-coded for full traceability, and produced in ISO Class 7 cleanrooms under an ISO 13485 quality system. Review our certifications and compliance documents and see how we manufacture before you place a bulk order.
We support full OEM/ODM programs — housing colors, private labeling and custom packaging built around your brand, with factory-direct MOQs and tiered wholesale pricing.
Model Reference
For example – 0801RL
08 – Needle Diameter (Gauge)
01 – Needle Count
RL – Needle Configuration
Needle Diameter (Gauge)
08 = #8 (Bugpin, approx. 0.25 mm)
10 = #10 (Standard, approx. 0.30 mm)
12 = #12 (Standard, approx. 0.35 mm)
Needle Count
01 / 03 / 05 / 07 / 09 / 11 / 13 / 14 / 15 / 17 / 18 / 23 / 27
Needle Type
RL = Round Liner
RS = Round Shader
M1 = Magnum (Double Stack)
RM = Round Magnum
CM = Curved Magnum
F = Flat Shader
RLT = Textured Round Liner
TRL = Turbo Round Liner
STL = Super Tight Liner
BUGPIN ROUND LINER · #08 · 0.25MM — THE FULL BUGPIN LINER RANGE
|
MODEL |
GAUGE |
TAPER |
NEEDLE COUNT |
MEMBRANE |
STERILIZATION |
FIT |
TYPICAL USE |
|---|---|---|---|---|---|---|---|
|
0801RL |
#08 · 0.25mm |
Long 5.5mm |
1 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Single-needle hairlines, micro detail, ultra-fine script |
|
0803RL |
#08 · 0.25mm |
Long 5.5mm |
3 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Fine lines, small script, delicate detail outlines |
|
0805RL |
#08 · 0.25mm |
Long 5.5mm |
5 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Fine-to-medium outlines, gentle work on sensitive skin |
|
0807RL |
#08 · 0.25mm |
Long 5.5mm |
7 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Medium outlines with soft deposit, realism outlines |
|
0809RL |
#08 · 0.25mm |
Long 5.5mm |
9 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Medium-bold outlines on detailed designs |
|
0811RL |
#08 · 0.25mm |
Long 5.5mm |
11 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Bolder outlines that still need a gentle touch |
|
0814RL |
#08 · 0.25mm |
Long 5.5mm |
14 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Wide bugpin lines, small solid fills |
|
0818RL |
#08 · 0.25mm |
Long 5.5mm |
18 |
Yes, built-in |
EO Gas · ISO 11135 |
Universal cartridge grip |
Maximum-width bugpin lines, fast small fills |
Built Like a Medical Device, Priced for Wholesale
We control every step in our own factory, from needle grinding to sterile packing. Here is what goes into each turbo round liner cartridge.
01 0.25mm Bugpin Steel, Machine-Soldered
Bugpin liners use #08 needles — 0.25mm against the 0.30mm and 0.35mm of standard liners. Thinner needles flex more, so we machine-solder every grouping and check straightness: one bent needle in a fine liner scratches every line it touches.
02 Safety Membrane System
A medical-grade silicone membrane sits inside every cartridge. It keeps needle tension steady — especially important for thin needles that flex — and stops ink and body fluids from flowing back into the grip and machine.
03 Polished 304 Needle Tips
We use Japanese-imported 304 surgical steel with mirror-polished tips. Smooth, sharp points mean clean penetration and less friction in the skin. Each grouping is soldered by machine, so the recessed center is identical across every batch.
04 Medical-Grade Housing
The shell is medical-grade polymer with a clear tip, so artists see the ink channel working while they line. Low-friction inner walls keep the needle stable. The standard fitting works with most rotary machines and cartridge grips.
05 EO Gas Sterilization
Every cartridge is sealed in its own blister pack and sterilized with EO gas. Our sterilization process is validated under ISO 11135, with batch records kept for full traceability.
06 Two-Stage Quality Control
Every unit passes 100% visual inspection on the line. Then 30% of each batch is checked again under 100x microscopy for tip alignment, solder quality, and center-channel depth.
Why Thinner Needles Line Differently
A 7RL is not always a 7RL. Build it from 0.35mm needles and you get a bold, fast line. Build the same 7RL from 0.25mm bugpin needles and the grouping gets narrower and denser: the line comes out finer, the ink goes in slower and softer, and the skin takes less damage per pass. That is why realism artists outline with bugpins — the line sits quietly under the shading instead of fighting it. The trade-off: bugpins saturate slower, so bold traditional outlines are still faster with standard gauges.
Where Turbo Liners Work Best
One job: bold, saturated lines at higher speed. If the style is outline-driven and time matters, this is the needle.
Realism & Portrait Outlines
Realism outlines must disappear into the shading. 5RL to 9RL bugpins draw the map without leaving a heavy border behind.
Fine Line & Minimalist
Thin needles make thin lines — it’s that simple. 1RL and 3RL bugpins are the standard tools of the fine line style.
Soft & Whip Lines
Bugpins deposit ink gently, so whipped and pendulum lines come out soft and textured — a look thick needles cannot fake.
Thin Skin & Sensitive Areas
Inner wrists, necks, hands — thin skin chews up fast under heavy needles. A 0.25mm bugpin enters cleaner and heals tighter.
Same Counts, Finer Steel. Count Sets Width, Bugpin Sets Manners.
Needle count still sets the line width — the #08 gauge just makes every width finer and gentler than its standard equivalent.
1RL – 3RL
Hairlines, micro detail, tiny script
5RL – 7RL
Fine outlines, realism contours
9RL – 11RL
Medium outlines, detailed designs
14RL – 18RL
Wide bugpin lines, small fills
Bugpin RL (#08) vs Standard RL (#10 / #12)
Same counts, same tight grouping — the only difference is needle diameter, and it changes everything about how the line lands.
|
BUGPIN RL · #08 · 0.25MM |
STANDARD RL · #10 / #12 |
|
|---|---|---|
|
Needle Diameter |
0.25mm — thinner steel |
0.30mm / 0.35mm — standard steel |
|
Grouping Size (same count) |
Narrower, denser |
Wider |
|
Line Result |
Finer, softer, slower saturation |
Bolder, faster saturation |
|
Skin Trauma per Pass |
Lower — gentler entry |
Low with proper technique |
|
Healed Look |
Tighter, more delicate healed line |
Strong, graphic healed line |
|
Best For |
Fine line, realism outlines, whip lines, thin skin |
Traditional outlines, bold linework, fast sessions |
Compare with the standard liner range: Round Liner (RL) cartridges. For soft shading in bugpin gauge, see Bugpin Round Shader cartridges; for an even tighter point, see Tight Round Liner cartridges.
Our Certifications
R&G Bio is an integrated manufacturer with verified FDA registration, ISO 13485 / ISO 9001 certification and EU RoHS compliance — the documentation your market actually requires.
Wholesale & OEM Programs
Factory-direct supply with full batch traceability. Tell us your sizes and target volume — we reply within 12 hours with a full quotation.
MOQ from 1,000 pcs
Standard sizes start low; mixed sizes allowed in one order.
Tiered Factory Pricing
The more you take, the lower the unit cost. Full price ladder with every quotation.
Fast Lead Time
Standard sizes ship from running production; OEM timelines confirmed with your quote.
Private Label & OEM
Your brand, built on our production lines — in-house design and engineering support.
Qualified B2B buyers can request a free sample kit before committing to an order.
FAQs
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Find Expert insights
About R&G Bio
Built on Precision.
Trusted Globally.
Where Precision Meets Medical-Grade Standards
ISO 13485 certified facility with ISO Class 100,000 cleanrooms. 316L surgical steel, complete traceability.
End-to-End Manufacturing Control
From needle configuration to sterile packaging, every step is precision-controlled with automated assembly and batch tracking.
Meeting International Regulatory Standards
CE Mark, FDA Registered, KFDA Approved, ISO 13485, RoHS Compliant. Full documentation for global market entry.
Trusted Tattoo Needle Manufacturer Since 2009
15+ years serving 50+ countries with premium cartridge tattoo needles and flexible OEM/ODM solutions.
OEM / ODM SERVICES
Contact us for wholesale pricing and custom configurations
Get In Touch
Request a Quotation
Tell us about your requirements and our team will respond within 24 hours with a detailed quote including pricing, lead times, and customization options.