Airtac PTB Single Acting Pen-Type Cylinder PTB10X50R
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X50R is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø10mm bore and 50mm 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
- Stroke50 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 PTB10X50R
The AirTAC PTB10X50R is a JIS pen-size single-acting pull cylinder, meaning air entering the single M5x0.8 port retracts the rod while an internal spring pushes it back out. It provides 23.5 N of net pull at 0.5 MPa and 36.7 N at 0.7 MPa. Because the return spring constantly opposes the air stroke, these figures already reflect the usable force after spring deduction.
If air pressure drops, the spring forces the rod into the extended position, creating a fail-safe out state for hold-down or return-to-home tasks. The slim SUS304 stainless body saves space, and the fixed TPU bumper cushions the stroke ends. For practical sizing, plan for a safe working load of about 14 N, which accounts for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X50R Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X50R |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 50 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 PTB10X50R
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×50 | 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 PTB10X50R Is Used
Hold-Down Clamping
Keeps a workpiece extended by default and pulls back to release when the M5x0.8 port is pressurized, ensuring parts stay clamped during air loss.
Wire Belt Tensioner
Maintains outward spring tension on a belt or wire, using the 23.5 N pull to momentarily slacken the line for indexing.
Retract-To-Open Gate
Holds a small diverter gate closed via spring force and pulls the 50 mm stroke open to redirect lightweight items on a packaging line.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X50R the Right Cylinder?
This 10 mm bore generates 23.5 N of net pull at 0.5 MPa. If your jig needs less force, stepping down to the 6 mm bore yields 7.1 N; if you need more power, the 12 mm bore provides 33.1 N. The internal spring sets a 0.2 MPa minimum pressure before motion begins. The R suffix specifies an axial inline air inlet, and the 50 mm stroke stays within the 60 mm single-acting limit.
With a 50 mm travel distance on a slender Ø4 mm rod, avoiding side loading is critical. Add an external linear bearing for off-axis loads, as the rod is built for coaxial thrust. Since this configuration lacks the S suffix, it does not have a sensor magnet.
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 PTB10X50R FAQ
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at the 0.7 MPa maximum. A minimum of 0.2 MPa is required to overcome the internal spring and move the rod.
The fixed TPU bumper only decelerates the last few millimeters of travel. At mid speeds with real tooling mass it can bottom out, so meter-out the exhaust or add an external shock absorber. The spring always returns the rod to the extended position.
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Related AirTAC PTB Pen-Size Cylinders
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