
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X50R 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, 50mm stroke; the return spring resets the rod when air is released.
The AirTAC PSBR16X50R is a single-acting push pen cylinder that extends via one M5x0.8 air port and retracts via an internal spring. It delivers 74.8 N of net push at 0.5 MPa, rising to 115 N at the 0.7 MPa maximum. The R suffix denotes an axial back cover inlet for in-line plumbing.
A DIRECT M5x0.8 front-cover mounting thread eliminates separate brackets, saving space on tight jigs. The SUS316L stainless barrel resists corrosion in damp environments. A fixed TPU bumper decelerates the rod at stroke ends, but with real tooling mass at mid-to-high speed you should meter-out the exhaust or add an external shock absorber.
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X50R |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 50 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.
| 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.
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | Bore size in mm. |
| ×50 | 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).
Pushes machined pins out of a chuck using 74.8 N net force, with the spring retracting the rod safely when air pressure drops.
Slides a lightweight electronic panel into a test socket; the direct M5x0.8 front mount bolts directly to the slim pen-size body.
Overrides a mechanical latch to dispense cartons, relying on the SUS316L barrel for washdown durability in damp packaging lines.
This 16 mm bore provides 74.8 N net push at 0.5 MPa. Stepping down, a 12 mm bore yields 42.9 N; stepping up is not available as 16 mm is the largest in the series. Plan for a safe working load of about 45 N (roughly 60 percent of the 0.5 MPa figure) to account for seal friction.
The spring ensures fail-safe retraction on air loss. The DIRECT M5x0.8 front-cover thread bolts straight to your fixture. The thin Ø5 mm rod handles coaxial thrust well; over this 50 mm stroke, add an external linear bearing if the load is off-axis.
Quick checklist
It provides 74.8 N of net push at 0.5 MPa and 115 N at the 0.7 MPa maximum. The internal return spring sets a 0.2 MPa minimum pressure before the rod moves, 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 R suffix indicates an axial back cover air inlet for in-line plumbing. This model has no sensor magnet.
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