Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SU 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 PSBR8X15SU
The AirTAC PSBR8X15SU is a single-acting push pen-size mini cylinder that extends via one M5x0.8 air port and retracts via an internal spring. It provides 18.7 N of net push at 0.5 MPa and 28.7 N at 0.7 MPa. The return spring ensures the rod fails safe to the home position on air loss.
A direct M4x0.7 front-cover mounting thread bolts straight to your fixture, saving space in tight jigs. The SUS316L stainless barrel resists corrosion in damp environments.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SU |
|---|---|
| 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 PSBR8X15SU
| 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 PSBR8X15SU Is Used
Part Ejector
Pushes small finished parts out of a machining fixture using the direct front thread, with the spring safely pulling the rod back.
Panel Pusher
Extends to nudge lightweight electronic panels into a test station, saving space with its slim SUS316L barrel.
Clamp Release
Applies 18.7 N of push to open a light packaging clamp, retracting automatically when air pressure drops.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SU the Right Cylinder?
This 8 mm bore offers 18.7 N net push at 0.5 MPa. If you need less force, the 6 mm bore yields 10.6 N; for more thrust, the 10 mm bore provides 29.8 N. The internal spring sets a 0.2 MPa minimum pressure before motion begins.
The direct M4x0.7 front thread mounts without a separate bracket. The U suffix adds a 90-degree side inlet for flat plumbing. The S suffix includes a piston magnet for reed or electronic switches. Note the thin Ø4 mm rod is for coaxial thrust; add an external guide for off-axis loads.
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 PSBR8X15SU FAQ
It delivers 18.7 N net push at 0.5 MPa and 28.7 N at 0.7 MPa. Because it is spring-return, a minimum of 0.2 MPa is required to overcome the spring and move the rod.
It mounts directly via an M4x0.7 thread on the front cover. The S suffix adds a built-in magnet for reed or electronic switches, while the U suffix provides a 90-degree side air inlet.
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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