Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M5×0.8 thread). A single air port drives the push 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 typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR
The AirTAC PSBR16X40SR is a JIS pen-size single-acting push cylinder with a 16mm bore and 40mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it. This fail-safe design ensures the rod returns home on air loss. It delivers 74.8N net push at 0.5 MPa and 115N at 0.7 MPa.
The direct M5x0.8 front-cover mounting thread bolts straight to your fixture, saving space. The SUS316L stainless barrel suits damp environments. For practical sizing, plan for a safe working load of about 45N (roughly 60% of the 0.5MPa figure) or lifting about 3.8kg vertically with a 2:1 margin. A fixed TPU bumper decelerates the last few millimeters of travel.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 mm |
| Acting type | Single acting, push type (spring return) |
| 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 (push by air) |
| Max standard stroke | Up to 100 mm |
The spring holds the rod retracted; applying air pushes the rod out, and removing air lets the spring return it. 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 Push Force (Ø16mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 74.8 N |
| 0.7 MPa (max) | 115.0 N |
These are usable push 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 PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| U / R | Back cover: U 90° side inlet or R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (M5×0.8). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR Is Used
Part Ejector
Uses the spring-return push to eject machined parts from a fixture, ensuring the arm safely retracts if compressed air drops.
Panel Pusher
Bolts directly via the front-cover thread to push lightweight panels into a locating slot, saving space on the assembly head.
Clamp Release
Applies 74.8N of net push at 0.5MPa to disengage a holding clamp, with the spring automatically pulling back to free the part.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR the Right Cylinder?
This 16mm bore provides 74.8N net push at 0.5 MPa. Stepping down to a 12mm bore yields 42.9N, while this 16mm unit offers significantly more thrust without increasing the footprint drastically. The direct M5x0.8 front-mount thread and axial R back-cover inlet simplify plumbing in tight jigs.
Remember the internal spring sets a 0.2MPa minimum pressure before motion begins. The piston rod is only 5mm thick, so for long strokes or off-axis loads, add an external guide or linear bearing to prevent side load damage. Confirm the S magnet and R axial inlet when ordering.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M5×0.8)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract 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 PSBR Single Acting Square Head Compact Cylinder PSBR16X40SR FAQ
The PSBR16X40SR provides 74.8N net push at 0.5MPa and 115N at 0.7MPa. Because it is spring-return, the internal spring sets a minimum pressure of 0.2MPa before the rod can extend.
It mounts directly via the M5x0.8 front-cover thread. The included S option denotes a built-in piston magnet, compatible with AirTAC reed or electronic switches for position sensing.
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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 PSBR Pen-Size Cylinders
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