Airtac PB Pen-type Cylinder PB12X70SR
The AirTAC Airtac PB Pen-type Cylinder PB12X70SR is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 70mm 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
- Stroke70 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 PB12X70SR
The AirTAC PB12X70SR is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It features a 12 mm bore and a 70 mm stroke, generating 56.5 N of push and 46.7 N of pull at 0.5 MPa. The slim SUS304 stainless barrel and piston rod provide durability in damp or mildly corrosive environments, while the lightweight body is ideal for tight jig placement and end-of-arm tooling where space and payload are constrained.
This variant includes an R axial air inlet for in-line plumbing and an integrated piston magnet (-S) for position sensing. Air is supplied via an M5x0.8 port, and the Ø5 mm rod uses an M10x1.0 end thread for load coupling. To absorb end-of-stroke energy, the cylinder relies on a fixed TPU bumper at each end rather than an adjustable air cushion.
Airtac PB Pen-type Cylinder PB12X70SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X70SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 70 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 PB12X70SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×70 | 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 PB12X70SR Is Used
PCB Depaneling Ejector
Pushes separated circuit boards off a conveyor guide in a depaneling cell, using the 56.5 N extend force to clear small panels quickly without stressing the stainless body.
Carton Flap Tucking
Tucks minor flaps on small pharmaceutical cartons before tape sealing, where the slim pen-size profile fits neatly between folding rails and the fixed TPU bumper handles the repetitive impact.
Is the Airtac PB Pen-type Cylinder PB12X70SR the Right Cylinder?
When sizing this actuator, consider stepping to the adjacent bores to match your exact force requirements. Moving down, the Ø10 bore provides 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 bore yields 100.5 N at the same pressure. Keep in mind that a standard PB cylinder does not hold its position if air pressure is lost or the valve is centered; the piston will drift, and the bumper only decelerates near the stroke end. If your application requires a fail-safe hold, specify an external stop or rod lock.
Confirm your ordering essentials for this model: 12 mm bore, 70 mm stroke, M5x0.8 port, built-in magnet (S), R axial inlet, and standard mounting. Because the Ø5 mm rod is designed primarily for coaxial thrust, avoid side loading or use an external linear bearing over the 70 mm stroke to prevent rod deflection.
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 PB12X70SR FAQ
This 12 mm bore 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 operates between 0.15-0.7 MPa, runs at speeds of 50-800 mm/s, and has a proof pressure of 1.2 MPa.
It uses a fixed TPU bumper at each end to decelerate the piston over the last few millimeters, which is not adjustable or field-tunable. For high-speed cycles with real tooling mass, meter-out the exhaust or add an external shock absorber. The integrated -S magnet allows AirTAC reed or electronic switches to read piston position.
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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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