Airtac PB Pen-type Cylinder PB16X40CB
The AirTAC Airtac PB Pen-type Cylinder PB16X40CB is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 40mm 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
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X40CB
The AirTAC PB16X40CB is a JIS pen-size double-acting single-rod mini cylinder engineered for compact automation. It provides a robust 100.5 N push and 90.7 N pull at 0.5 MPa, driven through an M5x0.8 port. The Ø5 mm piston rod features an M10x1.0 rod-end thread, coupling securely to your tooling. Its slim SUS304 stainless round barrel resists damp or mildly corrosive environments, saving valuable space and payload on light end-of-arm robotic assemblies.
This specific variant includes a CB double clevis back cover, allowing the body to pivot smoothly with the load. Deceleration relies on a fixed TPU bumper at each end rather than an adjustable air cushion. Because the bumper only absorbs impact over the final few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB16X40CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X40CB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PB16X40CB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 PB16X40CB Is Used
Pivoting Component Diverter
Ideal for routing small machined parts on a conveyor using the CB double clevis to accommodate the swing arc during actuation.
Pick-and-Place EOAT
Provides compact vertical thrust for lightweight electronic component handling, where the slim stainless body minimizes robotic arm payload.
Film Clamp Assembly
Delivers precise 40 mm strokes to hold and seal packaging film, with the fixed TPU bumper absorbing rapid repetitive end-of-stroke impacts.
Is the Airtac PB Pen-type Cylinder PB16X40CB the Right Cylinder?
Selecting this 16 mm bore yields 100.5 N of push force at 0.5 MPa. If you need slightly less force, the adjacent 12 mm bore generates 56.5 N push, while stepping up is not applicable as this is the largest diameter in the PB family. For practical sizing, plan for a safe working load of roughly 60 N—about 60% of the theoretical 0.5 MPa figure—to account for seal friction and smooth travel. This equates to lifting approximately 5.1 kg vertically with a sane 2:1 safety margin.
When ordering, confirm the 16 mm bore, 40 mm stroke, M5x0.8 port, and the CB double clevis bracket. Note that a plain PB cylinder drifts when air is lost or the valve is centered; the fixed bumper decelerates near stroke end but does not lock the piston. If your application must hold a load without live pressure, integrate an external stop or rod lock.
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 PB16X40CB FAQ
At 0.5 MPa, the push force is 100.5 N and the pull force is 90.7 N. At the maximum operating pressure of 0.7 MPa, the push is 140.7 N and the pull is 126.9 N. 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.
No, a plain PB cylinder drifts when air is lost or the valve is centered. The fixed TPU bumper only decelerates the piston near the stroke end; it does not function as a brake. For fail-safe vertical holding, you must add an external rod lock or mechanical stop.
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