Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SR
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SR 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 PTB10X25SR
The AirTAC PTB10X25SR 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. Because the powered stroke pulls against the rod-side area, you get 23.5 N of net pull at 0.5 MPa and 36.7 N at 0.7 MPa. The built-in magnet enables position sensing, and the R axial inlet keeps plumbing perfectly in line for tight spaces.
Without live air, the spring holds the rod safely extended, making it ideal for return-to-home or hold-down tasks. The slim SUS304 stainless body saves weight on end-of-arm tooling. For smooth travel, plan for a safe working load of roughly 14 N, which accounts for seal friction and provides a stable margin.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SR Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SR |
|---|---|
| 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 PTB10X25SR
| 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 PTB10X25SR Is Used
Hold-Down Clamping
Pulls a lightweight cover or component down securely against a fixture, with the spring automatically releasing the hold upward when air is removed.
Wire Belt Tensioner
Maintains steady tension on a belt or wire by retracting a tensioning pulley, safely relaxing the pull if the compressed air supply drops out.
Retract-To-Open Gate
Powers a small diverter or sorting gate closed by pulling it in, allowing the internal spring to snap the gate back open upon exhaust.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SR the Right Cylinder?
This 10 mm bore provides 23.5 N net pull at 0.5 MPa. If you need less force, the 6 mm bore offers 7.1 N; stepping up to the 12 mm bore yields 33.1 N. Remember the return spring sets a minimum 0.2 MPa pressure before motion begins. The thin Ø4 mm rod handles coaxial thrust well, but over the 25 mm stroke or under off-axis loads, add an external linear bearing to prevent binding.
The fixed TPU bumper decelerates the last few millimeters of travel but is not adjustable. At mid-to-high speeds with real tooling mass, meter-out the exhaust or add an external shock absorber. This configuration includes the S magnet for reed or electronic switches and the R back cover for axial plumbing.
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 PTB10X25SR FAQ
It delivers 23.5 N of net pull at 0.5 MPa and 36.7 N at 0.7 MPa. Because the internal spring opposes motion, a minimum pressure of 0.2 MPa is required before the rod begins to retract. Upon air loss, the spring forces the rod back to the extended fail-safe state.
Yes, the built-in piston magnet works with both reed and electronic solid-state switches. The fixed TPU bumper handles end-of-stroke deceleration, but for heavier tooling at higher speeds, adding external shock absorption is recommended.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PTB Pen-Size Cylinders
Request a Quote for Airtac PTB Single Acting Pen-Type Cylinder PTB10X25SR
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.