Airtac PTB Single Acting Pen-Type Cylinder PTB10X45R
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB10X45R is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø10mm 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.
- BoreØ10 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM8×1.0
- 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 PTB10X45R
The AirTAC PTB10X45R is a JIS pen-size single-acting pull cylinder where air entering the M5x0.8 port retracts the rod, and an internal spring pushes it back out. It provides 23.5 N of net pull at 0.5 MPa and 36.7 N at 0.7 MPa. Because the powered stroke pulls against the rod-side area, this output is naturally lower than a matching push cylinder, helping you right-size the actuator for tensioning tasks.
With a 45 mm stroke, the slim SUS304 stainless body saves space in tight jigs. The R axial inlet keeps plumbing in-line. If air pressure drops, the spring forces the rod into the extended position, creating a fail-safe out state for hold-down operations. Plan for a safe working load of roughly 14 N, which accounts for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB10X45R Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB10X45R |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 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 (Ø10mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 23.5 N |
| 0.7 MPa (max) | 36.7 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 PTB10X45R
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 10 | 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 PTB10X45R Is Used
Hold-Down Clamping
Keeps a workpiece clamped under tension. The spring maintains the rod in the extended holding position automatically if the air supply is removed.
Belt Tensioner
Pulls back to maintain steady belt tension. The single air line simplifies valving while providing 23.5 N of net pulling force at 0.5 MPa.
Retract-to-Open Gate
Uses the 45 mm stroke to pull a diverter gate open. Releasing air pressure lets the spring push the gate closed as a default safety state.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB10X45R the Right Cylinder?
Choosing this 10 mm bore means sizing against adjacent options. If you need less force, the 6 mm bore offers 7.1 N net pull at 0.5 MPa; stepping up to the 12 mm bore provides 33.1 N. This model yields 23.5 N at 0.5 MPa, striking a balance for medium-light pulling. The internal return spring demands a minimum 0.2 MPa operating pressure before the rod will move, and the cylinder fails safe to the extended position on air loss.
The 45 mm stroke sits well within the 60 mm single-acting limit. It features a fixed TPU bumper that decelerates motion over the last few millimeters. For real tooling mass moving at mid-to-high speeds, meter-out the exhaust or add an external shock absorber, as the bumper can bottom out. The thin 4 mm rod handles coaxial thrust well, but over this 45 mm stroke, add an external guide if side loads are present.
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 PTB10X45R FAQ
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at 0.7 MPa. Because an internal spring holds the rod extended, a minimum pressure of 0.2 MPa is required to overcome the spring and retract the rod.
It uses a fixed TPU bumper at each end to decelerate motion over the last few millimeters. This unit lacks a sensor magnet. For heavier tooling mass at higher speeds, meter-out the exhaust or add an external shock absorber since the bumper is non-adjustable.
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