Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SU 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 PSBR16X40SU
The AirTAC PSBR16X40SU is a single-acting push pen cylinder that extends via one M5x0.8 air port and retracts automatically via an internal spring. It supplies 74.8 N of net push at 0.5 MPa. The direct M5x0.8 front-cover mounting thread eliminates extra brackets, saving critical space in tight jigs.
Built with a SUS316L stainless steel barrel, this slim mini body handles damp environments. A fixed TPU bumper cushions the stroke ends. Because the return spring dictates a 0.2 MPa minimum pressure, the rod stays safely retracted on air loss. Plan for a safe working load of roughly 45 N, which is about 60 percent of the 0.5 MPa rating.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SU |
|---|---|
| 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 PSBR16X40SU
| 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 PSBR16X40SU Is Used
Part Ejector
Uses the 74.8 N push stroke to kick finished components off an assembly fixture before the spring retracts the rod.
Panel Pusher
Extends to index lightweight panels into a machining cell, relying on fail-safe retract to clear the workspace on air loss.
Clamp Release
Overcomes spring-loaded clamps to release a workpiece, with the direct front thread keeping the footprint minimal.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40SU the Right Cylinder?
This 16 mm bore generates 74.8 N net push at 0.5 MPa and 115 N at the 0.7 MPa maximum. Sizing both ways: stepping down to a 12 mm bore yields 42.9 N, while this 16 mm unit provides the extra thrust for stiffer mechanisms. The fail-safe retract and direct front mount simplify plumbing. The U code specifies a 90-degree side inlet for flat routing.
The built-in S magnet supports reed or electronic switches for position sensing. Remember the thin 5 mm rod handles coaxial thrust only; over the 40 mm stroke, add an external linear bearing for any off-axis loads. Confirm your M5x0.8 bolt engagement before bottom mounting.
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 PSBR16X40SU FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at the 0.7 MPa maximum. Because an internal spring returns the rod, a minimum pressure of 0.2 MPa is required before motion begins, and the cylinder fails safely retracted on air loss.
It mounts directly via an M5x0.8 thread on the front cover, requiring no separate bracket. The U suffix provides a 90-degree side air inlet, and the S suffix adds a piston magnet compatible with reed or electronic switches.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSBR Pen-Size Cylinders
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