Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SR
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SR is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø10mm bore and 20mm 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
- Stroke20 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 PTB10X20SR
The AirTAC PTB10X20SR is a JIS pen-size single-acting pull cylinder where air entering the M5x0.8 port retracts the rod, and an internal spring pushes it back out upon exhaust release. This yields a fail-safe extended state, keeping tooling safely open if air pressure drops. It delivers 23.5 N of net pull at 0.5 MPa, with the return spring force already deducted.
Featuring a slim SUS304 stainless body, a Ø4 mm rod with an M8x1.0 end thread, and a built-in magnet for position sensing, it fits perfectly into compact jigs. The fixed TPU bumper decelerates motion at stroke ends, while the single air line simplifies valving compared to double-acting units.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SR Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SR |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 20 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 PTB10X20SR
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×20 | 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 PTB10X20SR Is Used
Hold-Down Clamping
Uses the spring-extended rod to keep a workpiece firmly held in place by default, applying 23.5 N of pulling force only when air is applied.
Wire Belt Tensioner
Maintains steady tension on a belt or wire assembly, automatically returning to the extended rest position if the air supply is interrupted.
Retract-To-Open Gate
Pulls a lightweight diverter gate out of the product stream on command, relying on the spring to safely close it during an air loss event.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X20SR the Right Cylinder?
This 10 mm bore provides 23.5 N net pull at 0.5 MPa and 36.7 N at the 0.7 MPa maximum. If your jig needs less force, the Ø6 bore offers 7.1 N at 0.5 MPa; stepping up to the Ø12 bore yields 33.1 N at 0.5 MPa. Remember the internal spring requires a minimum 0.2 MPa pressure to overcome before retraction motion begins. Plan for a safe working load of roughly 14 N, which is about 60 percent of the rated 0.5 MPa figure, to account for seal friction.
Because the spring holds the rod extended by default, this model is ideal for return-to-home and hold-down tasks. The included -S magnet supports AirTAC reed or electronic switches. Confirm your plumbing matches the R axial inlet configuration before finalizing the build.
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 PTB10X20SR FAQ
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at the 0.7 MPa maximum. Because an internal spring pushes the rod out, a minimum pressure of 0.2 MPa is required before the rod begins to retract. The spring ensures the rod fails safe in the extended position.
A fixed TPU bumper at each end absorbs impact over the last few millimeters of travel, though external shock absorbers may be needed for heavy tooling at high speeds. The built-in -S magnet allows tracking with either reed or electronic switches.
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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
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