Airtac PB Pen-type Cylinder PB12X120SR
The AirTAC Airtac PB Pen-type Cylinder PB12X120SR is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 120mm 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
- Stroke120 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 PB12X120SR
The AirTAC PB12X120SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a 12mm bore and a 120mm stroke, generating 56.5 N of push force and 46.7 N of pull force at 0.5 MPa. The slim SUS304 stainless steel barrel and piston rod provide excellent durability in damp or mildly corrosive environments while keeping weight low for end-of-arm tooling.
This configuration includes an R axial air inlet for in-line plumbing and a built-in piston magnet (-S) for position sensing with AirTAC reed or electronic switches. Air connections use an M5x0.8 port, and the rod-end features an M10x1.0 thread for secure load coupling. Travel is capped by a fixed TPU bumper at each end that decelerates the piston over the final few millimeters, and the unit operates efficiently between 0.15 and 0.7 MPa at speeds of 50-800 mm/s.
Airtac PB Pen-type Cylinder PB12X120SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X120SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 120 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 PB12X120SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×120 | 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 PB12X120SR Is Used
PCB Depaneling Router
Drives a light cutting head along a 120mm axis to singulate circuit boards, utilizing the slim stainless body to fit within dense electronics manufacturing fixtures.
Blister Pack Sealing
Actuates a small heat platen for sealing pharmaceutical blister packs, where the 56.5 N push force is sufficient and the built-in magnet verifies press closure.
Micro-Component Sorting
Pushes small plastic or metal parts from a conveyor into chutes on automated inspection lines, benefiting from the fast 50-800 mm/s cycle speed.
Is the Airtac PB Pen-type Cylinder PB12X120SR the Right Cylinder?
When sizing this 12mm bore actuator, stepping down to the 10mm bore yields 39.3 N of push force at 0.5 MPa, while stepping up to the 16mm bore provides 100.5 N. Because the 120mm stroke amplifies lateral leverage on the Ø5 mm rod, adding an external linear bearing is highly recommended to prevent side-load damage.
Keep in mind that a standard double-acting cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, and an external rod lock is required for fail-safe holding. To finalize your order, confirm the 12mm bore, 120mm stroke, M5x0.8 port, S magnet, R axial inlet, and any required mounting brackets.
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 PB12X120SR FAQ
At 0.5 MPa, this 12mm bore cylinder provides 56.5 N of push force and 46.7 N of pull force. At the maximum operating pressure of 0.7 MPa, the push force is 79.1 N and the pull force is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a proof pressure of 1.2 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the rod near the stroke end; it does not function as a brake. For vertical loads or fail-safe holding, you must add an external stop or rod lock.
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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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