Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SCB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SCB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø16mm bore and 15mm 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
- Stroke15 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 PTB16X15SCB
The AirTAC PTB16X15SCB is a JIS pen-size single-acting pull cylinder where air entering one M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust release. This fail-safe extended state is optimal for holding parts securely when pneumatic pressure drops. Delivering 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum, it uses a SUS304 stainless slim body and a fixed TPU bumper to decelerate the stroke ends.
Because pulling acts on the smaller rod-side area, this bore generates less force than a matching push cylinder, so right-sizing your jig is critical. The built-in magnet allows positioning detection with reed or electronic switches. For practical sizing, plan for about 39 N of real work, which represents roughly 60 percent of the rated 0.5 MPa force to account for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SCB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SCB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 15 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 PTB16X15SCB
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×15 | 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 PTB16X15SCB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to swing into position and retract the rod, pulling a part down securely against a fixture while air is applied.
Wire Belt Tensioner
Applies constant spring-extended tension to a conveyor belt or wire drive, using the single air line to momentarily release pull for maintenance access.
Vertical Lift Return
Lifts a light 3.3 kg payload using a 2:1 safety margin, relying on the spring to safely extend and lower the mass when air exhausts.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB16X15SCB the Right Cylinder?
When sizing this 16 mm bore option, note it provides 65 N net pull at 0.5 MPa. If your application requires less force, stepping down to a 12 mm bore yields 33.1 N at the same pressure. Since 16 mm is the largest available PTB bore, moving beyond 101.2 N at 0.7 MPa requires switching to a double-acting PB series. The CB double clevis back cover accommodates pivoting loads, and the internal spring requires a minimum 0.2 MPa pressure to initiate retraction.
Confirm your ordering essentials: this configuration includes the S magnet for switch sensing and a 15 mm stroke. The Ø5 mm piston rod carries an M10x1.0 end thread. Remember the fixed TPU bumper only absorbs energy in the final few millimeters; with heavy tooling mass at mid to high speeds, meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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 PTB16X15SCB FAQ
This cylinder provides 65 N of net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. Because the internal return spring opposes the air stroke, a minimum pressure of 0.2 MPa is required before the rod begins to retract. Upon air loss, the spring forces the rod back to the extended fail-safe position.
The built-in S magnet is compatible with both reed and electronic AirTAC switches for precise position sensing. Cushioning relies on a fixed TPU bumper at each end, which decelerates the piston only during the last few millimeters of travel. For heavier tooling at higher speeds, add external shock absorption.
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Related AirTAC PTB Pen-Size Cylinders
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