Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SCB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SCB 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 PTB10X25SCB
The AirTAC PTB10X25SCB is a JIS pen-size single-acting pull cylinder where air entering one M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust. This fail-safe extended state is ideal for holding parts when air pressure drops. It yields a 23.5 N net pull at 0.5 MPa, reaching 36.7 N at the 0.7 MPa maximum. Because the powered stroke acts on the smaller rod-side annular area, this usable pulling force is lower than a matching push-type unit.
Built with a SUS304 stainless barrel and a slim 10 mm body, it saves space in tight jigs and light end-of-arm tooling. The CB double clevis allows pivoting mount integration. A fixed TPU bumper decelerates the stroke at both ends, and the built-in magnet (-S) supports position sensing. Plan for a safe working load of roughly 14 N, which accounts for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SCB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SCB |
|---|---|
| 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 PTB10X25SCB
| 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 PTB10X25SCB Is Used
Hold-Down Clamping
Uses the fail-safe extended spring to keep a workpiece secured, retracting only when air is applied to release the part.
Wire Belt Tensioner
Maintains steady pulling tension on a belt or wire, using the single air line to slacken the loop during loading.
Retract-to-Open Gate
Employs the CB clevis to pivot a small diverter gate shut via spring force, pulling it open pneumatically.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SCB the Right Cylinder?
When sizing this 10 mm bore, note it sits between the Ø6 and Ø12 options. The smaller bore provides 7.1 N net pull at 0.5 MPa, while the larger bore offers 33.1 N at the same pressure. This model provides 23.5 N at 0.5 MPa, making it a solid middle ground for moderate tensioning tasks. Remember the internal return spring sets a 0.2 MPa minimum pressure before motion begins.
For vertical applications, the rod can securely hold or pull about 1.2 kg with a sane 2:1 safety margin. The Ø4 mm rod is designed for coaxial thrust, so if your stroke encounters off-axis loads, add an external linear bearing to prevent side-load damage. Confirm the CB double clevis fits your pivot geometry before ordering.
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 PTB10X25SCB FAQ
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at the 0.7 MPa maximum. Because the internal spring opposes the air stroke, a minimum pressure of 0.2 MPa is required before the rod begins to move. Upon air loss, the spring forces the rod back out to the extended position.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel. At higher speeds with real tooling mass, you should meter-out the exhaust or add an external shock absorber. The built-in magnet works with AirTAC reed or electronic switches for precise position detection.
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Related AirTAC PTB Pen-Size Cylinders
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