Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø10mm bore and 25mm stroke. A single air port drives the pull stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ10 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM8×1.0
- ReturnSpring
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB
The AirTAC PTB10X25CB is a JIS pen-size mini cylinder configured for single-acting pull operation. Air entering the M5x0.8 port retracts the Ø4 mm rod, while an internal spring pushes it back out upon exhaust release. This provides a fail-safe extended state during air loss, delivering 23.5 N of net pull at 0.5 MPa and 36.7 N at 0.7 MPa. The CB double clevis back cover accommodates pivoting loads.
Built with a SUS304 stainless barrel and slim body, it saves space in tight jigs. A fixed TPU bumper decelerates the stroke ends, though above mid-speed with real tooling mass you should meter-out the exhaust or add an external shock absorber. Plan for a safe working load of about 14 N (roughly 60% of the 0.5 MPa figure) to ensure smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull type (spring extend) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (pull by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod extended; applying air retracts it, and removing air lets the spring push the rod back out. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Pull Force (Ø10mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 23.5 N |
| 0.7 MPa (max) | 36.7 N |
These are the usable pull forces after the return spring is subtracted, taken directly from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
Model Code: Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R | Back cover: R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PSB (single-acting push), PBD (double rod), PBR (front-mount).
Where the Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to swing into place and pull 23.5 N at 0.5 MPa, securing light panels while the spring safely extends the rod when air stops.
Wire Belt Tensioner
Maintains steady tension on a conveyor belt with a safe working load of 14 N, retracting to slacken the line when the single air line fires.
Retract-to-Open Gate
Pulls a lightweight diverter gate out of the product stream using one solenoid line, relying on the spring to push the barrier back out on exhaust.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB the Right Cylinder?
When sizing this 10 mm bore, note its 23.5 N net pull at 0.5 MPa is lower than the matching push cylinder because the powered stroke acts on the smaller rod-side area. Dropping down to a 6 mm bore yields only 7.1 N, whereas stepping up to a 12 mm bore provides 33.1 N. The internal return spring sets a 0.2 MPa minimum pressure before motion begins, and without live air the rod stays safely extended. Confirm your pivoting mount requires the CB clevis and that the 25 mm stroke fits your mechanism.
The thin Ø4 mm rod is designed purely for coaxial thrust. Over this 25 mm stroke or with any off-axis load, add an external guide or linear bearing to prevent side load damage. This unit has no sensor magnet; order a -S variant if you need position detection.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe extend on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 0.7 MPa operating pressure.
- check Allow for spring force in the stroke direction.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X25CB FAQ
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at 0.7 MPa (maximum pressure). Because an internal spring holds the rod extended, a minimum 0.2 MPa is required before the rod can retract. The rod fails safe to the extended position on air loss.
It uses a fixed TPU bumper at each end that decelerates the last few millimeters of travel. This bumper is not adjustable or a lock. At higher speeds with real tooling mass, meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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Related AirTAC PTB Pen-Size Cylinders
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