
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X60CB 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.
The AirTAC PTB16X60CB is a JIS pen-size single-acting pull cylinder with a 60 mm stroke. Air entering the single M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust release. This fail-safe extended state is ideal for holding parts securely when pneumatic pressure drops. The CB double clevis back cover accommodates pivoting loads. Delivering 65 N of net pull at 0.5 MPa, the return spring force is already deducted from this rating.
Built with a SUS304 stainless barrel and a slim 16 mm body, it saves space in tight jigs and end-of-arm tooling. The Ø5 mm piston rod features an M10x1.0 end thread. A fixed TPU bumper at each end decelerates motion over the final few millimeters. Because the spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before the rod moves. Plan for a safe working load of about 39 N, representing roughly 60 percent of the 0.5 MPa rating to account for seal friction.
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X60CB |
|---|---|
| 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.
| 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.
| 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).
Uses the CB clevis to swing into position. The spring keeps the clamp extended safely around the part until air retracts it.
Maintains constant tension on a packaging line. Loss of plant air leaves the rod extended, preserving tension safely.
Pulls a diverter gate open on command. The spring automatically closes the gate to a home position during shutdown.
This 16 mm bore provides 65 N net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. If your pivoting assembly requires less force, the neighboring 12 mm bore yields 33.1 N at 0.5 MPa. Since this is the largest standard pen-size option, exceeding 101.2 N requires moving to a larger non-pen actuator. The internal spring guarantees the rod stays extended on air loss, but remember it is not a locking brake for external loads.
Verify your pivot pin matches the CB double clevis before ordering. The thin Ø5 mm rod handles coaxial thrust well, but over this 60 mm stroke you should add an external linear bearing if the mechanism imposes any side load. The fixed TPU bumper only cushions the end of travel; with heavy tooling mass at mid speeds, meter-out the exhaust or install an external shock absorber.
Quick checklist
The net pull force is 65 N at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. The internal spring requires a minimum 0.2 MPa air supply before the rod can move. The spring also ensures the rod fails safe in the extended position.
It uses a fixed TPU bumper at each end to decelerate the stroke over the final few millimeters. It is not an adjustable cushion or a locking brake. When moving real tooling mass at higher speeds, meter-out the exhaust or add an external shock absorber.
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