Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R is a single acting, pull type (spring extend) pen-size mini cylinder with direct front-cover mounting (M5×0.8 thread). A single air port drives the pull stroke on a Ø16mm bore, 15mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke15 mm
- Port sizeM5×0.8
- Front-mount threadM5×0.8
- Acting typePull, single acting
- ReturnSpring
About the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R
The AirTAC PTBR16X15R is a JIS pen-size single-acting pull cylinder that bolts directly via its front-cover M5x0.8 thread. Air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out, ensuring a fail-safe extended state upon air loss. It delivers about 65 N net pull at 0.5 MPa.
The slim SUS316L stainless body saves space in tight jigs. Because pulling acts on the smaller rod-side area, this usable force is lower than a matching push cylinder. A fixed TPU bumper cushions the stroke ends. Plan for a safe working load of roughly 39 N (about 60 percent of the 0.5 MPa figure) to account for seal friction.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 15 mm |
| Acting type | Single acting, pull type (spring extend) |
| Front-mount thread | M5×0.8 |
| Port size | M5×0.8 |
|---|---|
| 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 100 mm |
The spring holds the rod extended; applying air retracts it, and removing air lets the spring push the rod back out. Front cover carries the mounting thread (M5×0.8); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Pull Force (Ø16mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 65.0 N |
| 0.7 MPa (max) | 101.2 N |
These are usable pull forces after the return spring is subtracted, 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 PTBR Single Acting Square Head Compact Cylinder PTBR16X15R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) 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: direct front-cover thread (M5×0.8). Related PBR-family variants: PBR (double acting), PSBR (single-acting push).
Where the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R Is Used
Hold-Down Clamping
Uses spring pressure to keep a workpiece extended, then pulls back 15 mm to release the part when air is applied.
Retract-to-Open Gate
Maintains a guide rail gate closed by default and retracts it open on signal, returning to the closed position if air fails.
Web Tensioner
Applies steady spring-extend tension to a material web, pulling the roller back to ease the tension during threading.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R the Right Cylinder?
This 16 mm bore provides 65 N net pull at 0.5 MPa and 101.2 N at the 0.7 MPa maximum. If you need less force, the 12 mm bore yields 33.1 N at 0.5 MPa; for heavier tasks, consider a double-acting PBR. The direct front-cover M5x0.8 thread mounts straight to your fixture, and the R axial inlet keeps plumbing in line.
Remember the fail-safe extend behavior: the spring holds the rod out when air is removed. The thin Ø5 mm rod handles coaxial thrust well, but over long strokes or off-axis loads you should add an external linear bearing. Confirm your solenoid and pressure requirements before ordering.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Bolt directly through the front cover (M5×0.8)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe extend on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 100 mm (single-acting limit)
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 Match bolt size and engagement to the front thread.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X15R FAQ
It provides 65 N net pull at 0.5 MPa and 101.2 N at 0.7 MPa maximum. Because it is single-acting pull, a minimum pressure of 0.2 MPa is required to overcome the spring and move the rod, and the cylinder fails safe to the extended position on air loss.
It mounts directly via the M5x0.8 front-cover thread, while air connects through a separate M5x0.8 port on the R axial inlet back cover. The barrel is made of SUS316L stainless steel for durability in compact spaces.
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Related AirTAC PTBR Pen-Size Cylinders
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