Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X40SR
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X40SR 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 Ø10mm bore, 40mm stroke; the return spring resets the rod when air is released.
- BoreØ10 mm
- Stroke40 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 PTBR10X40SR
The AirTAC PTBR10X40SR is a JIS pen-size single-acting pull cylinder featuring a 10mm bore and 40mm stroke. Air entering the M5x0.8 port retracts the rod, while a spring pushes it back out, ensuring fail-safe extension on air loss. It supplies 23.5N of net pull at 0.5 MPa and 36.7N at 0.7 MPa, with the spring force already deducted.
The SUS316L stainless barrel houses a slim body that bolts directly to a fixture via the front-cover M4x0.7 thread. A fixed TPU bumper cushions the end strokes, and the built-in magnet (-S) supports reed or electronic switches for position sensing.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X40SR Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X40SR |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 40 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 (Ø10mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 23.5 N |
| 0.7 MPa (max) | 36.7 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 PTBR10X40SR
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 10 | Bore size in mm. |
| ×40 | 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 PTBR10X40SR Is Used
Hold-Down Clamp
Spring pressure keeps the clamp extended safely during air loss, while air pulls the rod back to release the workpiece.
Tensioner Arm
Maintains steady tension on a belt or filament, retracting pneumatically when the line needs slack.
Retract-to-Open Gate
Holds a small access gate closed by default and uses the 23.5N pull to open it upon actuation.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X40SR the Right Cylinder?
This 10mm bore yields 23.5N net pull at 0.5 MPa. Stepping down to an 8mm bore provides 12.4N, while moving up to a 12mm bore offers 33.1N.
The direct M4x0.7 front-mount thread simplifies installation without extra brackets. Because the rod is a slender 4mm diameter, use an external guide for off-axis loads over this 40mm stroke. Confirm your need for the R axial inlet and the built-in magnet when 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 PTBR10X40SR FAQ
It provides 23.5N net pull at 0.5 MPa and 36.7N at 0.7 MPa. Because it is single-acting pull, a minimum of 0.2 MPa is required to overcome the spring before motion begins. The spring ensures the rod fails-safe extended.
It mounts directly via an M4x0.7 thread on the front cover, eliminating separate brackets. The -S suffix indicates a built-in piston magnet compatible with reed or electronic switches, and the SUS316L barrel provides corrosion resistance.
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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