Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SRLB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SRLB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 15mm 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
- Stroke15 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM10×1.0
- 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 PTB16X15SRLB
The AirTAC PTB16X15SRLB is a JIS pen-size single-acting pull cylinder where air entering the M5x0.8 port retracts the rod, and exhausting air lets the spring push it back out. This fail-safe extended behavior is ideal for holding parts when pneumatic pressure drops. The SUS304 stainless build includes a built-in magnet for position sensing and an LB mounting bracket for secure fixture attachment.
Providing 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum, it uses a fixed TPU bumper at each end to decelerate motion. Because pulling acts on the rod-side area, this output is appropriately lower than a pushing cylinder of the same bore. Plan for a safe working load of about 39 N to account for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SRLB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SRLB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 15 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 PTB16X15SRLB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×15 | 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 PTB16X15SRLB Is Used
Fail-Safe Hold-Down Clamp
Keeps a workpiece clamped under spring pressure during an air loss event, using the 65 N pull to retract and release only when air is applied.
Wire Belt Tensioner
Maintains constant tension on a moving belt or wire by pulling back against the load, with the spring automatically slackening on power off.
Retract-To-Open Gate
Pulls a lightweight diverter gate out of the product stream on signal, letting the internal spring push it back into the blocking position as a default safe state.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SRLB the Right Cylinder?
This 16 mm bore generates 65 N net pull at 0.5 MPa; stepping down to a 12 mm bore yields 33.1 N, while no larger single-acting option exists in this series. The internal return spring requires a minimum 0.2 MPa pressure to overcome its bias before retraction begins. Ensure your valve can supply the M5x0.8 port adequately.
The included LB bracket simplifies side mounting, and the R axial inlet keeps plumbing in line. The S suffix denotes a piston magnet compatible with reed or electronic switches. Remember the Ø5 mm rod is built for coaxial thrust; over the 15 mm stroke, avoid side loads or add an external linear bearing for off-axis tooling mass.
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 PTB16X15SRLB FAQ
The net pull force is 65 N at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. Because the internal spring holds the rod extended, a minimum pressure of 0.2 MPa is required before the cylinder can retract the rod.
The S suffix indicates a built-in piston magnet for reed or electronic switches. Cushioning relies on a fixed TPU bumper at each end that decelerates the last few millimeters of travel; at high speeds with heavy tooling mass, meter-out the exhaust or add an external shock absorber.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC PTB Pen-Size Cylinders
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