Airtac PSB Single Acting Compact Cylinder PSB6X50R
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB6X50R is a single acting, push type (spring return) pen-size mini cylinder with a Ø6mm bore and 50mm stroke. A single air port drives the push stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ6 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM5×0.8
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB6X50R
The AirTAC PSB6X50R is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air port and retracts via an internal spring. It provides 10.6 N of net push at 0.5 MPa, making it suitable for compact jigs requiring simple valving. The slim SUS304 stainless body and rod resist moisture in tight spaces.
Because the spring constantly opposes the air stroke, the rod stays safely retracted on air loss. This fail-safe behavior is ideal for part ejection or clamp release. The built-in fixed TPU bumper decelerates the stroke near the ends, but with real tooling mass at high speeds, you should meter-out the exhaust or add an external shock absorber.
Airtac PSB Single Acting Compact Cylinder PSB6X50R Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB6X50R |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 50 mm |
| Acting type | Single acting, push type (spring return) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| 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. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Push Force (Ø6mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 10.6 N |
| 0.7 MPa (max) | 16.3 N |
These are the usable push forces after the return spring is subtracted, taken directly 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 PSB Single Acting Compact Cylinder PSB6X50R
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R / U / CB | Back cover: R axial inlet, U 90° side inlet, CB double clevis (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PTB (single-acting pull), PBD (double rod), PBR (front-mount).
Where the Airtac PSB Single Acting Compact Cylinder PSB6X50R Is Used
Small Part Ejector
Pushes lightweight stamped electronics from a die using one air line, with the spring safely pulling the rod back when air is cut.
Package Diverter Gate
Acts as a slim routing flap on a packaging line, using the fail-safe retract to clear the conveyor path during power loss.
Lab Test Clamp
Secures delicate glass vials during centrifuge loading, relying on the 10.6 N net push and spring release to prevent crushing.
Is the Airtac PSB Single Acting Compact Cylinder PSB6X50R the Right Cylinder?
This 6 mm bore generates 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa. Stepping down to the 4 mm bore yields only 4.1 N, while stepping up to the 10 mm bore offers 29.8 N. Plan for a safe working load of roughly 6 N, or lifting about 0.5 kg vertically with a 2:1 margin.
A minimum pressure of 0.2 MPa is required to overcome the return spring. The thin Ø3 mm rod handles coaxial thrust well, but over this 50 mm stroke or under off-axis loads, add an external linear bearing to prevent side load damage. Confirm your ordering essentials: bore, stroke, no magnet, R axial inlet, and mount.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
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 Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PSB Single Acting Compact Cylinder PSB6X50R FAQ
It delivers 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa. Because the internal return spring opposes the air stroke, a minimum of 0.2 MPa is needed before the rod moves, and the rod fails safe to the retracted position on air loss.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel. Since the bumper is not adjustable, running at high speeds with heavy tooling requires metering out the exhaust or adding an external shock absorber.
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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 PSB Pen-Size Cylinders
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