Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR is a single acting, pull type (spring extend) pen-size mini cylinder with direct front-cover mounting (M4×0.7 thread). A single air port drives the pull stroke on a Ø8mm bore, 10mm stroke; the return spring resets the rod when air is released.
- BoreØ8 mm
- Stroke10 mm
- Port sizeM5×0.8
- Front-mount threadM4×0.7
- Acting typePull, 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 PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR
The AirTAC PTBR8X10SR is a JIS pen-size single-acting pull cylinder with a 10mm stroke. Air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out, ensuring fail-safe extension on air loss. It yields 12.4N of net pull at 0.5 MPa and 19.9N at 0.7 MPa, with the spring force already deducted.
This compact unit bolts directly via its M4x0.7 front-cover thread, eliminating extra brackets. The SUS316L stainless barrel resists corrosion, and a fixed TPU bumper cushions the stroke ends. Because the -S suffix denotes a built-in magnet, you can track position with reed or electronic switches.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø8 mm |
| Rod diameter | Ø4 mm |
| Stroke | 10 mm |
| Acting type | Single acting, pull type (spring extend) |
| 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 (pull by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod extended; applying air retracts it, and removing air lets the spring push the rod back out. 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 Pull Force (Ø8mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 12.4 N |
| 0.7 MPa (max) | 19.9 N |
These are usable pull 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 PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 8 | Bore size in mm. |
| ×10 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R | Back cover: R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (M4×0.7). Related PBR-family variants: PBR (double acting), PSBR (single-acting push).
Where the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR Is Used
Hold-Down Clamping
Pulls a small clamp down onto a circuit board with 12.4N force, releasing upward automatically if air pressure drops.
Retract-to-Open Gate
Uses the direct M4x0.7 front mount to thread into a conveyor diverter, pulling the gate open on signal and springing it closed.
Light Tensioning
Maintains steady tension on a delicate wire or film, relying on the SUS316L barrel for clean environments.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR the Right Cylinder?
This 8mm bore provides 12.4N net pull at 0.5 MPa. If your jig needs less force, the 6mm bore offers 7.1N; scaling up to the 10mm bore yields 23.5N. Plan for a safe working load of roughly 7N (about 60% of the 0.5 MPa rating) to account for seal friction. For vertical lifts, expect to hold or pull about 0.6kg with a 2:1 safety margin.
The direct M4x0.7 front-mount thread secures straight to your fixture, and the R axial inlet keeps plumbing in line. The 4mm rod is built for coaxial thrust, so add an external guide if side loads are present. Confirm your port size and switching needs before ordering.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Bolt directly through the front cover (M4×0.7)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe extend 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 PTBR Single Acting Square Head Compact Cylinder PTBR8X10SR FAQ
It provides 12.4N net pull at 0.5 MPa and 19.9N at 0.7 MPa. A minimum of 0.2 MPa is required to overcome the spring and retract the rod; if air is lost, the spring forces the rod to fail-safe extended.
It mounts directly via the M4x0.7 thread on the front cover. The included -S magnet works with both reed and electronic switches for position detection, while the R back cover provides an axial 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 PTBR Pen-Size Cylinders
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