Airtac PTB Single Acting Pen-Type Cylinder PTB16X60SR
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X60SR is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 60mm 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.
- BoreØ16 mm
- Stroke60 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PTB Single Acting Pen-Type Cylinder PTB16X60SR
The AirTAC PTB16X60SR is a JIS pen-size single-acting pull cylinder. Air entering the single M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust release. This provides a fail-safe extended state during air loss, ideal for holding or returning mechanisms to a safe home position. It yields 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum.
Built with a SUS304 stainless barrel and a slim 16 mm body, it saves space in tight jigs. The integrated magnet supports reed or electronic switches for position sensing. Because the return spring counteracts the air stroke, a minimum 0.2 MPa is required before motion begins. The fixed TPU bumper decelerates the stroke endpoints, but over this 60 mm travel, metering out the exhaust is recommended to manage tooling mass energy.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X60SR Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X60SR |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 60 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 (Ø16mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 65.0 N |
| 0.7 MPa (max) | 101.2 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 PTB16X60SR
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×60 | 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 PTB16X60SR Is Used
Hold-Down Clamping
Uses the fail-safe extended spring to maintain clamping pressure on parts during air loss, retracting only when air is applied.
Wire Belt Tensioner
Applies consistent pulling tension on belts or wires, automatically returning to the extended home position when pneumatic pressure is removed.
Retract-To-Open Gate
Pulls a diverter gate out of the product flow path on signal, allowing the internal spring to push the gate back closed by default.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X60SR the Right Cylinder?
Selecting this 16 mm bore provides the highest net pull in the PTB family, stepping up from the 12 mm bore which offers 33.1 N at 0.5 MPa. At 60 mm, this model hits the maximum single-acting stroke limit for the series. Plan for a safe working load of about 39 N (roughly 60% of the 0.5 MPa figure) to account for seal friction and smooth travel.
For vertical applications, this translates to holding or pulling about 3.3 kg with a sane 2:1 safety margin. Remember the fail-safe spring holds the rod extended without live air. The thin Ø5 mm rod handles coaxial thrust well, but over a 60 mm stroke you should add an external guide or linear bearing to prevent side-loading damage. This configuration includes the -S magnet and the R axial back cover inlet.
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 PTB16X60SR FAQ
The net pull force is 65 N at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. Because an internal spring holds the rod extended, a minimum pressure of 0.2 MPa is required to overcome the spring and retract the rod.
The -S suffix indicates a built-in piston magnet compatible with reed or electronic switches. Cushioning relies on a fixed TPU bumper at each end; it is not adjustable, so at higher speeds with real tooling mass you should meter-out the exhaust or add an external shock absorber.
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