Airtac PTB Single Acting Pen-Type Cylinder PTB16X40SR
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X40SR is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 40mm 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
- Stroke40 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 PTB16X40SR
The AirTAC PTB16X40SR 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 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. Because the powered stroke pulls against the rod-side area, this output is naturally lower than a matching push cylinder, making it ideal for tensioning tasks.
Equipped with an S-designation built-in magnet, the piston works seamlessly with AirTAC reed or electronic switches for position confirmation. The SUS304 stainless build includes a fixed TPU bumper to soften end-of-stroke impacts. For practical sizing, plan for a safe working load of about 39 N, which accounts for seal friction and smooth travel rather than using the full theoretical rating.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X40SR Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X40SR |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PTB16X40SR
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 PTB16X40SR Is Used
Hold-Down Clamping
Uses spring pressure to keep a workpiece extended safely, applying 65 N of net pull at 0.5 MPa to release the clamp when air is applied.
Wire Belt Tensioner
Maintains steady tension on belts or wires by default, retracting only when pressurized to slacken the line during machine setup.
Retract-To-Open Gate
Holds a diverter gate closed via spring force, pulling it open pneumatically to route products before snapping back to the home position.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X40SR the Right Cylinder?
When sizing this 16 mm bore, stepping down to a 12 mm bore yields 33.1 N of net pull at 0.5 MPa, while this PTB16X40SR offers 65 N at the same pressure. It represents the top single-acting pull option in the family. Remember the internal return spring establishes a minimum 0.2 MPa operating pressure before motion begins, and without live air the rod remains safely extended. This specific configuration includes an R axial inlet for inline plumbing and a magnetic piston for switch sensing.
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 PTB16X40SR FAQ
The net pull force is 65 N at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. Because an internal spring pushes the rod out, a minimum pressure of 0.2 MPa is required to overcome it and retract the rod.
The S suffix indicates a built-in piston magnet compatible with AirTAC reed or electronic switches. Deceleration is handled by a fixed TPU bumper at the ends, which only cushions the last few millimeters; for heavier masses at mid speed, meter-out the exhaust or add an external shock absorber.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PTB Pen-Size Cylinders
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