Airtac PTB Single Acting Pen-Type Cylinder PTB16X5SCB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X5SCB 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 PTB16X5SCB
The AirTAC PTB16X5SCB is a JIS pen-size single-acting pull cylinder where air entering one M5x0.8 port retracts the rod, and an internal spring pushes it back out. Because the powered stroke pulls against the return spring, it provides 65 N of net usable pull force at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. The integrated -S magnet supports position sensing with reed or electronic switches.
This configuration features a CB double clevis back cover for pivoting loads, a slim SUS304 stainless body, and a fixed TPU bumper at each end. If air pressure drops, the spring ensures the rod fails safely in the extended position. Plan for a safe working load of about 39 N, which accounts for friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X5SCB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X5SCB |
|---|---|
| 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 PTB16X5SCB
| 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 PTB16X5SCB Is Used
Pivoting Hold-Down Clamp
Uses the CB double clevis to swing into place, pulling the rod back to grip parts securely before releasing them to the spring-extended home position.
Wire Belt Tensioner
Applies steady pulling tension on a belt or wire assembly, automatically returning to the extended safe state if the air supply is interrupted.
Retract-To-Open Gate
Pulls a lightweight diverter gate closed on command and lets the spring push it open, ensuring the line stays clear during any air loss event.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X5SCB the Right Cylinder?
This 16 mm bore provides 65 N net pull at 0.5 MPa, dropping to 33.1 N if you step down to a 12 mm bore, and there is no larger bore in the PTB series. The internal spring requires a minimum of 0.2 MPa before the rod will move, and the unit fails safely extended without live air. Confirm your order includes the CB double clevis, -S magnet, and 5 mm stroke.
The thin Ø5 mm rod handles coaxial thrust well, but over long strokes or off-axis loads you should add an external guide or linear bearing. The fixed TPU bumper only decelerates the last few millimeters, so meter-out the exhaust or add an external shock absorber when cycling real tooling mass at mid speeds.
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 PTB16X5SCB FAQ
It delivers 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. The internal spring sets a 0.2 MPa minimum pressure before motion begins, and the rod fails safely extended on air loss.
The CB double clevis allows the body to pivot on a pin to accommodate off-center travel. The fixed TPU bumper decelerates the rod over the last few millimeters, but external shock absorption is recommended for heavier tooling mass.
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