Airtac PB Pen-type Cylinder PB16X70SU
The AirTAC Airtac PB Pen-type Cylinder PB16X70SU is a double-acting pen-size (mini) air cylinder with a Ø16mm 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.
- BoreØ16 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X70SU
The AirTAC PB16X70SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It delivers a robust 100.5 N push and 90.7 N pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and piston rod to resist damp or mildly corrosive environments. The U suffix equips the rear cover with a 90-degree perpendicular air inlet, allowing flat plumbing in confined spaces.
Air enters via an M5x0.8 port to drive the 5 mm rod, which features an M10x1.0 rod-end thread for secure load coupling. Because the rod is relatively slender, you must maintain coaxial alignment to prevent side loading. The built-in S magnet enables position detection using AirTAC reed or electronic switches, while fixed TPU bumpers at both ends absorb impact over the 70 mm travel.
Airtac PB Pen-type Cylinder PB16X70SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X70SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 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 PB16X70SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | 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 PB16X70SU Is Used
PCB Depaneling Jig
Actuates a routing blade fixture to singulate printed circuit boards, utilizing the 100.5 N push force to cleanly sever FR4 material without flexing the panel.
Carton Flap Folder
Tucks minor flaps on small pharmaceutical cartons moving along a high-speed conveyor, where the 90-degree U side inlet keeps air lines flush against the machine frame.
Light Parts Lift
Raises delicate electronic connectors between processing stations, safely lifting parts weighing up to 5.1 kg vertically thanks to a 2:1 safety margin on the 0.5 MPa force.
Is the Airtac PB Pen-type Cylinder PB16X70SU the Right Cylinder?
When sizing this actuator, consider stepping down to the Ø12 bore if your task requires less force, as it provides 56.5 N push at 0.5 MPa. If you need maximum thrust, this Ø16 model is the largest in the series, offering 140.7 N at the 0.7 MPa maximum operating pressure. For practical sizing at 0.5 MPa, plan for a safe working load of about 60 N, which accounts for seal friction and smooth travel rather than using the full theoretical rating.
A standard PB cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumpers only decelerate the piston near stroke end rather than locking it. If your application must hold a vertical load safely without live pressure, install an external rod lock. To order, confirm the 16 mm bore, 70 mm stroke, M5x0.8 port, S magnet, and U 90-degree side inlet.
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 PB16X70SU FAQ
This 16 mm bore double-acting cylinder generates 100.5 N push and 90.7 N pull at 0.5 MPa, reaching maximums of 140.7 N push and 126.9 N pull at the 0.7 MPa pressure limit. It operates at speeds between 50-800 mm/s across a 70 mm stroke, with an M5x0.8 port and an M10x1.0 rod-end thread.
No, the piston will drift if air is lost or the valve centers, as there is no locking mechanism. The fixed TPU bumper at each end only decelerates the piston over the last few millimeters of travel; it is not adjustable, so for high-speed or heavy tooling mass, you should meter-out the exhaust or add an external shock absorber.
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