Airtac PB Pen-type Cylinder PB16X45CB
The AirTAC Airtac PB Pen-type Cylinder PB16X45CB is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 45mm 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
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X45CB
The AirTAC PB16X45CB is a JIS pen-size double-acting mini cylinder engineered for compact, high-frequency actuation. It supplies 100.5 N of push and 90.7 N of pull at 0.5 MPa, peaking at 140.7 N extend force under the 0.7 MPa maximum operating pressure. The slim SUS304 stainless barrel and screwed-in covers provide excellent durability in damp or mildly corrosive environments, keeping weight low for end-of-arm tooling.
This 16 mm bore variant features a 5 mm piston rod, an M10x1.0 rod-end thread, and M5x0.8 air ports. Because this unit carries the CB suffix, it uses a double clevis back cover designed for pivoting loads. It relies on fixed TPU bumpers at both ends to decelerate motion over the final few millimeters rather than an adjustable air cushion. Plan for roughly 60 N of real work at 0.5 MPa after accounting for seal friction, which equates to safely lifting about 5.1 kg vertically with a 2:1 margin.
Airtac PB Pen-type Cylinder PB16X45CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X45CB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PB16X45CB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | 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 PB16X45CB Is Used
Pivoting Pick-and-Place Arms
Ideal for swinging small electronic components between conveyor belts, utilizing the CB double clevis to accommodate the rotational pivot while providing 100.5 N of extend force.
Flap Folding Mechanisms
Drives lightweight cardboard folding arms on compact packaging lines where the slim stainless barrel resists humidity and the fixed TPU bumper absorbs the 45 mm stroke impact.
Small Parts Ejection
Ejects molded plastic parts from tight tooling spaces, delivering a safe working load of approximately 60 N to push items clear without adding excessive bulk to the fixture.
Is the Airtac PB Pen-type Cylinder PB16X45CB the Right Cylinder?
Choosing this 45 mm stroke model places you at the top of the standard PB range. If you need less force, stepping down to the 12 mm bore yields 56.5 N push at 0.5 MPa, whereas this 16 mm bore provides 100.5 N at the same pressure. When ordering, confirm the 16 mm bore, 45 mm stroke, M5x0.8 porting, and the CB double clevis mount. Note that this configuration does not include a sensor magnet.
Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the elastomer bumpers only absorb end-of-stroke impact and act as neither a lock nor a brake. If your pivoting mechanism must hold position without live pressure, incorporate an external rod lock. Additionally, while the 5 mm rod handles coaxial thrust well, avoid side loading by adding a linear bearing for off-axis guide support.
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 PB16X45CB FAQ
This 16 mm bore double-acting cylinder generates 100.5 N push and 90.7 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it yields 140.7 N push and 126.9 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The CB suffix denotes a double clevis back cover for pivoting mounts. The cylinder uses fixed TPU bumpers at each end to decelerate the stroke, but these do not lock the piston. If air is lost, the load will drift, requiring an external stop for fail-safe holding.
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