Airtac PB Pen-type Cylinder PB16X25CB
The AirTAC Airtac PB Pen-type Cylinder PB16X25CB is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 25mm 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
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X25CB
The AirTAC PB16X25CB is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency tasks. It delivers a theoretical push of 100.5 N and pull of 90.7 N at 0.5 MPa, driven through an M5x0.8 air port. The CB suffix equips the rear cover with a double clevis, allowing the body to pivot smoothly during operation.
Its slim SUS304 stainless barrel and M10x1.0 threaded Ø5 mm rod provide durable resistance in damp or mildly corrosive environments while saving valuable space on end-of-arm tooling. Deceleration relies on a fixed TPU bumper at each end that absorbs impact over the final few millimeters, rather than an adjustable air cushion. Plan for a safe working load of roughly 60 N at 0.5 MPa to account for seal friction and smooth travel.
Airtac PB Pen-type Cylinder PB16X25CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X25CB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 25 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 PB16X25CB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×25 | 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 PB16X25CB Is Used
Pivoting Clamp Arm
Ideal for actuating a short-throw swinging clamp on a CNC fixture, utilizing the CB double clevis to accommodate the angular motion while applying 100.5 N of holding push.
Carton Flap Folder
Drives a lightweight mechanical arm to tuck side flaps on a packaging line, where the slim 16 mm body avoids interfering with adjacent product routing conveyors.
Small Parts Lift
Lifts delicate electronic components vertically, easily handling the roughly 5.1 kg safe lifting margin provided by the 0.5 MPa output without crushing the goods.
Is the Airtac PB Pen-type Cylinder PB16X25CB the Right Cylinder?
This 16 mm bore generates 100.5 N of push force at 0.5 MPa. If you need less force, stepping down to the 12 mm bore yields 56.5 N of push, while moving up is not an option as this is the largest diameter in the PB family. When sizing your motion, remember that a plain PB cylinder does not hold its load if air pressure drops or the valve is centered—the piston will drift, and the fixed 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, 25 mm stroke, M5x0.8 port, no sensor magnet, and the CB double clevis back cover for pivoting mounts.
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 PB16X25CB 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 operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
The CB suffix denotes a rear double clevis that permits pivoting movement to handle off-center load angles. Impact absorption is handled by fixed TPU bumpers at both ends, which decelerate the piston over the final few millimeters; for high-speed or heavy tooling mass, meter-out the exhaust or add an external shock absorber.
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