Airtac PTB Single Acting Pen-Type Cylinder PTB16X5CB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X5CB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 5mm 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
- Stroke5 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PTB Single Acting Pen-Type Cylinder PTB16X5CB
The AirTAC PTB16X5CB 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 the 0.7 MPa maximum. Because the return spring constantly pushes outward, the rod achieves a fail-safe extended state whenever air pressure drops.
This variant features a CB double clevis back cover for pivoting installations and a fixed TPU bumper to soften end-of-stroke impacts. The slim SUS304 stainless body saves space on tight jigs, and the M10x1.0 rod-end thread handles tooling attachments. Plan for a safe working load of about 39 N, which is roughly 60 percent of the rated force, to account for seal friction.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X5CB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X5CB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 5 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 PTB16X5CB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×5 | 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 PTB16X5CB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to angle a short 5 mm pull, securing parts that release automatically when air is removed.
Wire Belt Tensioner
Applies spring-extend outward pressure to maintain tension, retracting only to slacken the line during changeovers.
Retract-to-Open Gate
Pulls a diverter back 5 mm to open a path, defaulting to the closed extended position during an air loss event.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X5CB the Right Cylinder?
Selecting this 16 mm bore gives 65 N net pull at 0.5 MPa, while stepping down to a 12 mm bore yields 33.1 N. Moving up is unnecessary since 16 mm is the largest PTB option. The CB double clevis accommodates angular movement, and the 5 mm stroke handles short clamping motions. Remember the internal spring requires at least 0.2 MPa before the rod retracts.
The Ø5 mm piston rod is built for coaxial thrust, so avoid side loads. For vertical lifting, expect to hold or pull about 3.3 kg safely with a 2:1 margin. Confirm your solenoid matches the single air line requirement before ordering.
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 PTB16X5CB FAQ
It provides 65 N net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. The internal spring requires a minimum of 0.2 MPa to overcome its outward force and retract the rod.
The fixed TPU bumper decelerates the rod over the last few millimeters of travel. At high speeds with heavy tooling, meter-out the exhaust or add an external shock absorber. The CB double clevis allows the body to pivot during motion.
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Related AirTAC PTB Pen-Size Cylinders
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