Airtac PTB Single Acting Pen-Type Cylinder PTB10X50CB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X50CB 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 PTB10X50CB
The PTB10X50CB is a JIS pen-size single-acting pull cylinder with a 10 mm bore and 50 mm stroke. Air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust. This provides 23.5 N of net pull at 0.5 MPa (36.7 N at 0.7 MPa maximum). The CB double clevis back cover accommodates pivoting mount requirements.
Because the return spring constantly pushes outward, the rod achieves a fail-safe extended state during air loss. The slim SUS304 stainless body incorporates a fixed TPU bumper at each end to decelerate motion. 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 PTB10X50CB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X50CB |
|---|---|
| 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 PTB10X50CB
| 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 PTB10X50CB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to swing onto a part; air retracts to grip, and the spring releases automatically if air drops.
Wire Belt Tensioner
Applies steady pull on a conveyor belt; the fail-safe extended position keeps tension during pneumatic shutdown.
Retract-to-Open Gate
Pulls a diverter gate closed during operation and relies on the spring to push it open as a safe default state.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X50CB the Right Cylinder?
This 10 mm bore yields 23.5 N net pull at 0.5 MPa. If your pivoting application needs less force, the 6 mm bore offers 7.1 N; stepping up to the 12 mm bore provides 33.1 N. The internal spring sets a 0.2 MPa minimum pressure before motion begins. Without live air, the spring holds the rod fully extended.
The CB double clevis suits articulated mechanisms, but the 50 mm stroke amplifies leverage on the Ø4 mm rod. Add an external linear bearing for off-axis loads. Confirm your ordering essentials: M8x1.0 rod-end thread, M5x0.8 port, and no magnet sensor on this base model.
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 PTB10X50CB FAQ
It provides 23.5 N net pull at 0.5 MPa and 36.7 N at 0.7 MPa maximum. Because an internal spring constantly pushes outward, a minimum of 0.2 MPa is required to overcome it and retract the rod. The spring ensures the rod fails safe in the extended position.
It uses a fixed TPU bumper at each end that decelerates the last few millimeters of travel. This bumper is not adjustable. At mid-to-high speeds with real tooling mass, you should 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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