
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X40U is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M4×0.7 thread). A single air port drives the push stroke on a Ø10mm bore, 40mm stroke; the return spring resets the rod when air is released.
The AirTAC PSBR10X40U is a single-acting push pen cylinder that extends via one M5x0.8 air port and retracts via an internal spring. It provides 29.8 N of net push at 0.5 MPa, with the spring force already deducted. If air pressure drops, the spring ensures a fail-safe retracted position.
This 10 mm bore, 40 mm stroke model features a direct M4x0.7 front-cover mounting thread for bolting straight into tight jigs. The SUS316L stainless barrel resists corrosion in damp environments, while a fixed TPU bumper cushions the stroke ends.
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X40U |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 40 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M4×0.7 |
| 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 60 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 (M4×0.7); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 29.8 N |
| 0.7 MPa (max) | 45.5 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. |
|---|---|
| 10 | 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 (M4×0.7). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Uses the 29.8 N push stroke to nudge lightweight panels into a fixture. The direct front mount bolts directly to the machine frame.
Ejects small machined parts off a belt. The spring fail-safe retract ensures the rod clears the conveyor path on air loss.
Pushes a lightweight clamp open to free a component. The U side inlet keeps air plumbing flat against the jig wall.
Choosing this 10 mm bore yields 29.8 N net push at 0.5 MPa. If your task needs less force, stepping down to an 8 mm bore provides 18.7 N. If you require more power, moving up to a 12 mm bore offers 42.9 N. This model uses a U 90-degree side inlet for flat plumbing.
The direct M4x0.7 front mount eliminates extra brackets, and the spring provides a fail-safe retract. The thin 4 mm rod handles coaxial thrust well, but over this 40 mm stroke you should add an external guide for any off-axis loads. Confirm your pressure stays within the 0.2-0.7 MPa range, as the spring sets a minimum pressure before motion begins.
Quick checklist
This single-acting push cylinder delivers 29.8 N net push at 0.5 MPa and 45.5 N at 0.7 MPa. Because an internal spring returns the rod, there is a minimum operating pressure of 0.2 MPa required before the piston moves.
It mounts directly via an M4x0.7 thread on the front cover, saving space without extra brackets. The barrel is made of SUS316L stainless steel for damp environments, and this specific model does not include a sensor magnet.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.