Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X25R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X25R 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, 25mm stroke; the return spring resets the rod when air is released.
- BoreØ10 mm
- Stroke25 mm
- Port sizeM5×0.8
- Front-mount threadM4×0.7
- Acting typePull, single acting
- ReturnSpring
About the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X25R
The AirTAC PTBR10X25R is a JIS pen-size single-acting pull cylinder with a 10mm bore and 25mm 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 delivers 23.5N of net pull at 0.5MPa, with the spring force already deducted.
The body features a SUS316L stainless barrel and bolts directly to a fixture via the front-cover M4x0.7 thread. A fixed TPU bumper cushions the stroke ends. Because the rod is a slender Ø4mm, use an external guide for any off-axis loads to prevent side-load damage.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X25R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X25R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 25 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 PTBR10X25R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 10 | Bore size in mm. |
| ×25 | 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 PTBR10X25R Is Used
Hold-Down Clamping
Pulls a small clamp down onto a workpiece with 23.5N force, automatically releasing upward if air pressure drops.
Retract-to-Open Gate
Uses the direct M4x0.7 front mount to pull a lightweight diverter gate shut, springing it open safely on air loss.
Wire Tensioner
Maintains steady tension on a filament or wire spool, holding about 1.2kg of vertical pull with a 2:1 safety margin.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X25R the Right Cylinder?
This 10mm bore provides 23.5N net pull at 0.5MPa (36.7N at 0.7MPa max). If you need less force, the Ø8 bore offers 12.4N at 0.5MPa; for heavier tensioning, the Ø12 bore yields 33.1N. Plan for a safe working load of about 14N, which is roughly 60% of the 0.5MPa rating, to ensure smooth travel against seal friction.
The direct front-cover M4x0.7 mount keeps the footprint minimal, and the R axial inlet allows inline plumbing. Remember the spring requires a minimum 0.2MPa to move the piston. For powered motion in both directions, choose the PBR double-acting series instead.
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 PTBR10X25R FAQ
The PTBR10X25R provides 23.5N net pull at 0.5MPa and 36.7N at 0.7MPa maximum. The internal spring requires a minimum of 0.2MPa before the rod will retract, and the cylinder fails safe in the extended position.
It mounts directly via the front-cover M4x0.7 thread. The R back cover provides an axial M5x0.8 air port for inline plumbing. The barrel is made of SUS316L stainless steel for corrosion resistance.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC PTBR Pen-Size Cylinders
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