Airtac PTB Single Acting Pen-Type Cylinder PTB16X30CB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X30CB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 30mm 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
- Stroke30 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 PTB16X30CB
The AirTAC PTB16X30CB is a JIS pen-size mini cylinder engineered for single-acting pull operation. Air entering the single M5x0.8 port retracts the Ø5 mm rod, while an internal spring pushes it back out upon exhaust release. This fail-safe extended state is optimal for holding parts secure during air loss, delivering 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. The CB double clevis back cover accommodates pivoting mount configurations.
Built with a SUS304 stainless barrel and rod, this slim actuator saves space in tight jigs. A fixed TPU bumper decelerates motion at the stroke ends. Because pulling acts on the rod-side annular area, expect lower force than a matching push cylinder. Plan for a safe working load of about 39 N, which is roughly 60 percent of the rated figure, to account for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X30CB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X30CB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 30 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 PTB16X30CB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×30 | 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 PTB16X30CB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to swing onto a part, applying 65 N net pull at 0.5 MPa to hold it fast while the spring ensures the clamp retracts safely on air loss.
Wire Belt Tensioner
Maintains constant tension on a routing belt by pulling a tensioning idler, with the spring-extend design keeping the belt taut if the air supply drops out.
Retract-To-Open Gate
Pulls a lightweight diverter gate shut during operation, relying on the internal spring to snap the gate open and clear the lane when air is exhausted.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X30CB the Right Cylinder?
Select this 16 mm bore, 30 mm stroke model when your pivoting mechanism requires a reliable retract-to-open motion. The internal return spring mandates a 0.2 MPa minimum pressure before the rod overcomes spring tension and moves. If your task requires less force, the neighboring Ø12 bore provides 33.1 N of net pull at 0.5 MPa, whereas stepping up is impossible as Ø16 is the largest pen-size option in this series.
The CB double clevis allows articulated mounting on swinging arms. Remember the thin Ø5 mm rod handles coaxial thrust only; over this 30 mm stroke, add an external linear bearing if the load exerts any side force. The fixed TPU bumper handles light end-of-stroke damping, but meter-out the exhaust if moving heavy tooling mass at mid speed.
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 PTB16X30CB FAQ
This cylinder provides a net pull force of 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 before the air can overcome the spring and retract the rod.
The CB back cover provides a double clevis for pivoting mount installations. A fixed TPU bumper at each end decelerates the piston over the last few millimeters of travel; it is not adjustable, so fit an external shock absorber for heavy tooling mass moving at higher speeds.
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Related AirTAC PTB Pen-Size Cylinders
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