Airtac PTB Single Acting Pen-Type Cylinder PTB16X45SCB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X45SCB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 45mm 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
- Stroke45 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 PTB16X45SCB
The AirTAC PTB16X45SCB 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 return spring constantly fights the air stroke, the usable pull force is already deducted, giving you 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. This fail-safe extended behavior is ideal for holding parts secure when pneumatic pressure drops.
This configuration includes a built-in piston magnet for position sensing with reed or electronic switches, plus a CB double clevis back cover for pivoting mountings. The slim SUS304 stainless body saves space on light end-of-arm tooling. For practical sizing, plan for about 39 N of real work, which is roughly 60 percent of the rated force to account for seal friction. The fixed TPU bumper at each end decelerates the last few millimeters of travel, but with heavy tooling mass at mid-to-high speeds, you should meter-out the exhaust or add an external shock absorber.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X45SCB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X45SCB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PTB16X45SCB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | 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 PTB16X45SCB Is Used
Pivoting Hold-Down Clamp
Uses the CB double clevis to swing into position, pulling the rod back to grip components securely while the spring ensures a safe extended release on air loss.
Wire Belt Tensioner
Applies consistent pulling force to maintain tension on a conveyor belt, relying on the 65 N net pull at 0.5 MPa to counteract slack during operation.
Retract-To-Open Gate
Powers the opening stroke by retracting the rod against the spring, allowing the fail-safe extended position to mechanically close the gate during an air supply failure.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X45SCB the Right Cylinder?
Choosing this 16 mm bore gives 65 N net pull at 0.5 MPa. If you need less force, the neighboring 12 mm bore provides 33.1 N, or step up if 65 N is insufficient. Note that pull acts on the smaller rod-side annular area, making it lower than the matching push-type variant. The internal spring sets a 0.2 MPa minimum pressure before motion begins and guarantees the rod stays extended on air loss.
Confirm the 45 mm stroke fits your jig and utilize the CB double clevis for any pivoting load requirements. The Ø5 mm rod handles coaxial thrust well, but over this 45 mm stroke or with off-axis loads, add an external linear bearing guide to prevent side-load damage. It accepts reed or electronic switches via the integrated magnet.
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 PTB16X45SCB FAQ
It delivers 65 N net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. The internal spring requires a minimum 0.2 MPa pressure to overcome its resistance and retract the rod. Without air, the spring holds the rod safely extended.
The fixed TPU bumper decelerates the rod only for the last few millimeters of travel and is not adjustable or a locking brake. The built-in magnet works with AirTAC reed or electronic switches for precise end-of-stroke position detection.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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