Airtac PB Pen-type Cylinder PB12X185SU
The AirTAC Airtac PB Pen-type Cylinder PB12X185SU is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 185mm stroke. Its slim round barrel and back cover are stainless steel, the M5×0.8 ports keep plumbing compact, and the fast, low-friction piston suits high-cycle small-part handling.
- BoreØ12 mm
- Stroke185 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PB Pen-type Cylinder PB12X185SU
The AirTAC PB12X185SU is a double-acting JIS pen-size mini cylinder engineered for compact automation. It delivers 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a Ø5 mm rod with an M10x1.0 end thread. The U suffix specifies a 90-degree side air inlet, keeping your plumbing flat against the machine frame.
Fitted with a built-in piston magnet (S), this unit supports AirTAC reed or electronic switches for position detection. It operates at 50-800 mm/s with a fixed TPU bumper at each end. Because the 185 mm stroke is substantial for a Ø12 bore, the slender Ø5 mm rod requires an external guide to prevent side-load damage.
Airtac PB Pen-type Cylinder PB12X185SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X185SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Elastic bumper (both ends) |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC PB pen-size datasheet. Piston rod and barrel are stainless steel. Confirm bore, stroke and back-cover option against the product label before installation.
Theoretical Output Force (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 56.5 N | 46.7 N |
| 0.7 MPa (max) | 79.1 N | 65.4 N |
Values are taken from the AirTAC PB thrust table. Because pull acts on the rod-side annular area, pull force is always lower than push. Actual usable force is reduced by friction — size with a margin.
Model Code: Airtac PB Pen-type Cylinder PB12X185SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×185 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| CB / U / R | Back cover: CB double clevis, U 90° side inlet, R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PSB (single-acting push), PTB (single-acting pull), PBD (double rod), PBJ (adjustable stroke), PBR (front-mount).
Where the Airtac PB Pen-type Cylinder PB12X185SU Is Used
PCB Depaneling Router
Extends a cutting probe across an 185 mm span to singulate circuit boards, using the U side inlet to maintain a low profile within the tight routing head.
Carton Flap Folder
Pushes small corrugated flaps closed on a packaging line, where the S magnet confirms stroke completion to trigger the downstream tape dispenser.
Sample Tube Elevator
Raises light medical sample racks between processing tiers; the SUS304 build resists humidity, while an external linear bearing guides the 5 mm rod over the long extension.
Is the Airtac PB Pen-type Cylinder PB12X185SU the Right Cylinder?
When sizing this 12 mm bore, consider stepping down to the Ø10 model (39.3 N push at 0.5 MPa) for lighter tasks, or up to the Ø16 (100.5 N push) if you need more thrust. Confirm your ordering essentials: 12 mm bore, 185 mm stroke, M5x0.8 port, S magnet, and U side inlet.
Note that a plain pneumatic body does not hold its load if air pressure drops or the valve is centered; the piston will drift. For fail-safe vertical holding, you must add an external rod lock or mechanical stop. Additionally, the fixed TPU bumpers only decelerate the final few millimeters of travel, so meter-out the exhaust or install an external shock absorber when moving heavy tooling at high speeds.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Slim pen body vs. a standard round cylinder
- ✓ Back cover: CB / U / R inlet direction
- ✓ Magnet (S) for sensors?
- ✓ Mounting: LB / FA / CJ or front thread
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
- check Fit dust caps to ports during long-term storage.
- check Installation by qualified personnel per AirTAC docs.
Airtac PB Pen-type Cylinder PB12X185SU FAQ
This double-acting cylinder generates 56.5 N push and 46.7 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it yields 79.1 N push and 65.4 N pull. It runs at 50-800 mm/s, accepts 0.15-0.7 MPa input pressure, and features an M5x0.8 port.
The U suffix indicates a 90-degree perpendicular side air inlet for flat plumbing routing. Deceleration is handled by fixed TPU bumpers at both ends rather than adjustable air cushions; these only absorb impact over the final few millimeters, so high-speed loads may require external shock absorption.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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