Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X40R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X40R 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, 40mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke40 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 PTBR16X40R
The AirTAC PTBR16X40R is a JIS pen-size single-acting pull cylinder with a 16 mm bore and 40 mm stroke. Air entering the M5x0.8 port retracts the rod, while a spring pushes it back out, providing fail-safe extension on air loss. It yields 65 N net pull at 0.5 MPa and 101.2 N at 0.7 MPa.
You bolt directly via the front-cover M5x0.8 thread, eliminating brackets for tight jigs. The SUS316L stainless barrel resists corrosion. A fixed TPU bumper cushions the end strokes. Plan for a safe working load of about 39 N to ensure smooth travel.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X40R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X40R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PTBR16X40R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) 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: 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 PTBR16X40R Is Used
Fail-Safe Hold-Down Clamp
Maintains clamping pressure with the rod extended during air loss, automatically releasing tension only when pressurized air pulls the rod back.
Retract-to-Open Gate
Spring force keeps a sorting gate closed by default; applying air retracts the rod to open the path for selective part diversion on a line.
Spring-Return Tensioner
Provides constant tension on a belt or filament spool, using compressed air to pull back and slacken the line for quick material changes.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X40R the Right Cylinder?
This 16 mm bore provides 65 N net pull at 0.5 MPa, dropping to 33.1 N if you step down to a 12 mm bore. Stepping up is not an option as 16 mm is the largest in the series. The spring requires a 0.2 MPa minimum pressure before motion begins.
Direct front mounting uses the M5x0.8 thread, and the R back cover provides an axial inline air inlet. The thin Ø5 mm piston rod handles coaxial thrust well, but add an external guide for any off-axis loads. Confirm your port plumbing and thread engagement 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 PTBR16X40R FAQ
It provides 65 N net pull at 0.5 MPa and 101.2 N at 0.7 MPa. The internal spring requires a minimum 0.2 MPa to retract the rod, and the cylinder fails safe to the extended position on air loss.
It mounts directly via the M5x0.8 front-cover thread. The R back cover features an axial inline air inlet (also M5x0.8), and the SUS316L stainless barrel suits corrosive environments.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PTBR Pen-Size Cylinders
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