Airtac PB Pen-type Cylinder PB12X70SU
The AirTAC Airtac PB Pen-type Cylinder PB12X70SU 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 PB12X70SU
The AirTAC PB12X70SU is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless steel round barrel and piston rod, offering reliable durability in damp or mildly corrosive environments while saving valuable space on tight jigs and light end-of-arm tooling. Delivering 56.5 N of push force at 0.5 MPa, it handles precise small-part manipulation with ease.
This 12 mm bore unit travels a 70 mm stroke and integrates a fixed TPU bumper at each end to absorb impact. Because the bumper only decelerates the final few millimeters, metering out the exhaust or adding an external shock absorber is recommended when moving real tooling mass at higher speeds. The built-in -S piston magnet enables position detection using AirTAC reed or electronic switches, and the U back cover provides a 90-degree side air inlet for flat plumbing in confined installations.
Airtac PB Pen-type Cylinder PB12X70SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X70SU |
|---|---|
| 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 PB12X70SU
| 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 PB12X70SU Is Used
PCB Depaneling Router
Provides the 56.5 N push at 0.5 MPa needed to drive a small cutting blade or clamping finger across 70 mm of travel within a dense electronics assembly fixture.
Blister Pack Sealing Press
Cycles rapidly to close a heated upper platen, utilizing the fixed TPU bumpers to soften the final landing impact on thin polymer materials.
SMT Component Shuttle
Shifts small component trays laterally between pick-and-place stations, where the SUS304 body resists humid cleanroom conditions and the U inlet keeps plumbing flat.
Is the Airtac PB Pen-type Cylinder PB12X70SU the Right Cylinder?
When sizing this 12 mm bore actuator, stepping down to the 10 mm version yields 39.3 N of push at 0.5 MPa, while stepping up to the 16 mm bore provides 100.5 N, letting you match the exact force margin required.
Keep in mind the thin Ø5 mm piston rod is designed strictly for coaxial thrust, so add an external guide or linear bearing if your application involves off-axis loads over the 70 mm travel. A plain double-acting cylinder does not hold its position if air pressure drops or the valve is centered, so an external rod lock is necessary for fail-safe load holding. Confirm your ordering essentials: 12 mm bore, 70 mm stroke, M5x0.8 port, built-in magnet (S), U 90-degree side inlet, and your preferred mounting bracket.
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 PB12X70SU FAQ
The 12 mm bore double-acting rod 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. The cylinder operates between 0.15-0.7 MPa, runs at speeds of 50-800 mm/s, and has a proof pressure of 1.2 MPa.
The U back cover features a 90-degree side air inlet that allows flat plumbing against a machine frame, while the S code denotes a built-in piston magnet compatible with AirTAC reed or electronic switches for precise end-of-stroke position sensing.
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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