Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U 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 Ø8mm bore, 15mm stroke; the return spring resets the rod when air is released.
- BoreØ8 mm
- Stroke15 mm
- Port sizeM5×0.8
- Front-mount threadM4×0.7
- Acting typePush, single acting
- ReturnSpring
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U
The AirTAC PSBR8X15U is a single-acting push pen cylinder that extends via air pressure and retracts via an internal spring. It supplies 18.7 N of net push at 0.5 MPa, reaching 28.7 N at the 0.7 MPa maximum. A single solenoid line drives extension, and the spring ensures the rod fails safe to the home position on air loss.
You mount this slim SUS316L stainless body straight to your jig using the direct M4x0.7 front-cover thread. The M5x0.8 air port connects to the U-style 90-degree side inlet for flat plumbing. A fixed TPU bumper cushions the stroke ends.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø8 mm |
| Rod diameter | Ø4 mm |
| Stroke | 15 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.
Net Push Force (Ø8mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 18.7 N |
| 0.7 MPa (max) | 28.7 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 PSBR8X15U
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 8 | Bore size in mm. |
| ×15 | 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).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U Is Used
Panel Pusher
Uses the direct front mount to push lightweight electrical panels into a test rack, relying on the spring to retract safely when air drops.
Part Ejector
Ejects small stamped parts off a conveyor line; the 90-degree side inlet keeps the pneumatic plumbing flat against the machine frame.
Clamp Release
Momentarily pushes a packaging flap closed while glue sets, letting the internal spring pull the rod back for the next cycle.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15U the Right Cylinder?
This 8 mm bore with a 15 mm stroke offers 18.7 N net push at 0.5 MPa. If you need less force, the 6 mm bore version provides 10.6 N. If your jig requires more thrust, step up to the 10 mm bore, which yields 29.8 N at the same pressure. Because the internal return spring sets a minimum 0.2 MPa pressure before motion begins, verify your supply can overcome the spring while staying under the 0.7 MPa ceiling.
The direct M4x0.7 front-cover thread bolts straight to your fixture without extra brackets, saving space. The thin Ø4 mm rod handles coaxial thrust well, but over this 15 mm stroke you should add an external guide for any off-axis loads to prevent rod bending. Confirm the U-style 90-degree side inlet fits your plumbing layout before ordering.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M4×0.7)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 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 PSBR8X15U FAQ
The spring is already deducted, yielding 18.7 N net push at 0.5 MPa and 28.7 N at the 0.7 MPa maximum. Because the return spring creates resistance, a minimum 0.2 MPa air supply is required before the rod will extend. The rod fails safe to the retracted position on air loss.
The cylinder mounts directly via an M4x0.7 thread on the front cover, separate from the M5x0.8 air port. The SUS316L stainless barrel resists moisture in damp environments. This specific unit lacks a sensor magnet, so it cannot accept reed or electronic switches without changing the model code.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSBR Pen-Size Cylinders
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