Airtac PB Pen-type Cylinder PB16X250SCB
The AirTAC Airtac PB Pen-type Cylinder PB16X250SCB is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 250mm 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
- Stroke250 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X250SCB
The AirTAC PB16X250SCB is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency 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 a 5 mm rod to fit tight jigs and lightweight end-of-arm tooling. The M5x0.8 air port and M10x1.0 rod-end thread ensure straightforward integration into your existing pneumatic setups.
This specific configuration includes the S option for a built-in piston magnet, enabling position sensing with AirTAC reed or electronic switches. The CB double clevis back cover accommodates pivoting loads, while fixed TPU bumpers at each end absorb impact during stroke transitions. Operating at speeds up to 800 mm/s and a maximum pressure of 0.7 MPa, it is built for demanding automated environments.
Airtac PB Pen-type Cylinder PB16X250SCB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X250SCB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 250 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 PB16X250SCB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×250 | 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 PB16X250SCB Is Used
PCB Depaneling Routing
Actuates a routing cutter assembly on an electronics assembly line, using the 250 mm stroke to traverse large panels while the CB clevis accommodates minor pivot during the cut.
Package Flap Folding
Extends a folding arm on a cartoning machine to tuck flaps on corrugated boxes, relying on the 100.5 N push force to overcome cardboard resistance at high speeds.
Bin Tray Pusher
Pushes small component trays from a storage rack onto an outbound roller conveyor, where the pen-size profile saves valuable space in the dense racking structure.
Is the Airtac PB Pen-type Cylinder PB16X250SCB the Right Cylinder?
When sizing this actuator, note that the 100.5 N push force at 0.5 MPa yields a safe working load of roughly 60 N when accounting for seal friction, or a vertical lift capacity of about 5.1 kg with a 2:1 safety margin. If you need less force, the Ø12 bore provides 56.5 N push at 0.5 MPa; if this is the top of the range, stepping down is your primary alternative. Keep in mind that a plain PB cylinder does not hold its position or load when air is lost or the valve is centered—the piston will drift, and the bumper only decelerates near the stroke end, so an external rod lock is required for fail-safe holding.
Confirm your ordering essentials: 16 mm bore, 250 mm stroke, M5x0.8 port, S magnet for sensing, and CB double clevis mount. Because the stroke is 250 mm on a slender Ø5 mm rod, always maintain coaxial thrust and add an external linear bearing if any off-axis load is present to prevent rod binding.
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 PB16X250SCB FAQ
This 16 mm bore double-acting cylinder provides 100.5 N push and 90.7 N pull at 0.5 MPa, with maximums of 140.7 N push and 126.9 N pull at 0.7 MPa. The operating pressure range is 0.15-0.7 MPa, the proof pressure is 1.2 MPa, and the speed range is 50-800 mm/s.
The CB double clevis allows the cylinder to pivot on a pin, which is ideal for mechanisms with slight arc movements. At stroke ends, fixed TPU bumpers decelerate the piston over the last few millimeters; however, they are not adjustable, so at high speeds with heavy tooling mass you should meter-out the exhaust or add an external shock absorber.
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