Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SR 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 PSBR8X15SR
The AirTAC PSBR8X15SR is a JIS pen-size single-acting push cylinder with a built-in magnet and axial R inlet. Feeding air to the single M5x0.8 port extends the 4mm rod, while an internal spring ensures fail-safe retraction upon air loss. It supplies 18.7 N of net push at 0.5 MPa.
The direct M4x0.7 front-cover thread mounts straight to your fixture, saving space in tight jigs. The SUS316L stainless barrel resists corrosion in damp environments. A fixed TPU bumper cushions the stroke ends, and the integrated magnet works with reed or electronic switches for position sensing.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SR |
|---|---|
| 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 PSBR8X15SR
| 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 PSBR8X15SR Is Used
Small Part Ejector
Pushes lightweight plastic components out of a machining nest using the direct front-mount thread, with the spring safely pulling the 4mm rod back when air is cut.
Panel Pusher
Extends 15mm to index thin electronic panels along a guide rail, relying on the compact SUS316L body to fit within dense assembly machinery.
Clamp Release
Applies 18.7 N of net push at 0.5 MPa to overcome a light spring-clamp, then retracts instantly via the internal return spring and fixed TPU bumper.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X15SR the Right Cylinder?
This 8mm bore provides 18.7 N net push at 0.5 MPa (28.7 N at 0.7 MPa max). If you need less force, the 6mm bore yields 10.6 N at 0.5 MPa; stepping up to the 10mm bore provides 29.8 N.
The spring sets a 0.2 MPa minimum pressure before motion begins. The slim 4mm rod is built for coaxial thrust, so add an external guide for any off-axis loads. The R back cover provides axial in-line plumbing, and the M4x0.7 front thread secures it directly without extra brackets.
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 PSBR8X15SR FAQ
It delivers 18.7 N of net push at 0.5 MPa and 28.7 N at 0.7 MPa. Because it is single-acting push with a return spring, it requires a minimum of 0.2 MPa to overcome the spring and extend the rod. The spring ensures the rod fails safe retracted on air loss.
The S suffix denotes a built-in piston magnet for position sensing with reed or electronic switches. It mounts directly via the M4x0.7 front-cover thread, while the R back cover provides an axial air inlet for in-line plumbing.
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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