Airtac PTB Single Acting Pen-Type Cylinder PTB16X15CB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X15CB 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 PTB16X15CB
The AirTAC PTB16X15CB is a JIS pen-size single-acting pull cylinder where air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out. It delivers 65 N of net pull at 0.5 MPa and 101.2 N at 0.7 MPa. Because the powered stroke acts on the rod-side annular area, this usable force is lower than a matching push-type unit. The CB double clevis back cover accommodates pivoting loads.
Built with a SUS304 stainless barrel and a slim mini body, it saves space in tight jigs. The fixed TPU bumper decelerates motion at the end of the stroke. Plan for a safe working load of about 39 N, which is roughly 60 percent of the 0.5 MPa rating, to account for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X15CB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X15CB |
|---|---|
| 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 PTB16X15CB
| 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 PTB16X15CB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to swing into position, pulling the rod back to grip parts securely before releasing them automatically on air loss.
Wire Belt Tensioner
Maintains constant tension by letting the spring keep the rod extended, retracting only to slacken the belt during machine setup or maintenance.
Retract-to-Open Gate
Holds a diverter gate closed via spring force in its default state, using the 65 N pull to open the path when a workpiece needs to pass.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X15CB the Right Cylinder?
This 16 mm bore provides 65 N net pull at 0.5 MPa. If your task requires less force, the 12 mm bore yields 33.1 N at the same pressure. If you need more power, there is no larger PTB option, so you would need to explore alternative double-acting architectures. The internal spring sets a 0.2 MPa minimum pressure before motion begins and ensures the rod fails-safe extended on air loss.
With a 15 mm stroke and M10x1.0 rod-end thread, verify your pivot geometry matches the CB double clevis. The thin 5 mm rod handles coaxial thrust well, but over long strokes or off-axis loads, add an external linear bearing to prevent side-load damage.
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 PTB16X15CB FAQ
The net pull force is 65 N at 0.5 MPa and 101.2 N at 0.7 MPa maximum. Because the internal spring opposes the air stroke, a minimum pressure of 0.2 MPa is required before the rod moves. Releasing air lets the spring push the rod back out.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel. This bumper is not adjustable. At higher speeds with heavy 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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