Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X50R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X50R 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, 50mm stroke; the return spring resets the rod when air is released.
- BoreØ10 mm
- Stroke50 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 PTBR10X50R
The AirTAC PTBR10X50R is a JIS pen-size single-acting pull cylinder. 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 provides 23.5 N net pull at 0.5 MPa and 36.7 N at 0.7 MPa. The SUS316L stainless barrel houses a slim body for tight jigs.
You mount this cylinder directly via its front-cover M4x0.7 thread, eliminating extra brackets. A fixed TPU bumper cushions the stroke ends. At 50 mm stroke, the Ø4 mm piston rod needs an external guide if facing any off-axis loads.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X50R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X50R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 50 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 PTBR10X50R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 10 | Bore size in mm. |
| ×50 | 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 PTBR10X50R Is Used
Hold-Down Clamp
Pulls a clamp arm back to secure light components during machining, relying on the spring to safely release the hold if compressed air drops.
Retract-to-Open Gate
Tugs a small diverter gate shut on a packaging line, using the 23.5 N pull at 0.5 MPa to overcome belt vibration and spring back open on signal loss.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X50R the Right Cylinder?
Selecting this 10 mm bore yields 23.5 N usable pull at 0.5 MPa. If your fixture needs less force, the Ø8 bore offers 12.4 N; if pulling heavier parts, stepping up to the Ø12 bore provides 33.1 N. Remember the spring sets a 0.2 MPa minimum pressure before motion begins.
This model uses the R axial back cover for in-line plumbing and bolts directly through the M4x0.7 front thread. It lacks a sensor magnet. Need powered extension instead? Choose the PSBR push series, or select the PBR double-acting variant for force both ways.
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 PTBR10X50R FAQ
It delivers 23.5 N net pull at 0.5 MPa and 36.7 N at 0.7 MPa. Because it is spring-extended, a 0.2 MPa minimum pressure is required to overcome the spring and retract the rod. The spring automatically pushes the rod out on air loss.
It mounts directly via the front-cover M4x0.7 thread. The body features a SUS316L stainless barrel and an R axial air inlet. It has no sensor magnet and relies on a fixed TPU bumper for end-of-stroke deceleration.
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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