Airtac PSB Single Acting Compact Cylinder PSB6X20SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB6X20SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø6mm bore and 20mm 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
- Stroke20 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM5×0.8
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB6X20SR
The AirTAC PSB6X20SR is a JIS pen-size single-acting push cylinder. Air entering the M5x0.8 port extends the Ø3 mm rod, while an internal spring retracts it upon exhaust. This fail-safe design keeps the rod retracted during air loss, needing only one solenoid line. It provides 10.6 N of net push at 0.5 MPa.
The slim SUS304 stainless body fits tight spaces. The -S suffix adds a piston magnet for reed or electronic switches. A fixed TPU bumper cushions the stroke ends. Plan for a safe working load of about 6 N, which allows a smooth 2:1 margin for friction and real-world dynamics.
Airtac PSB Single Acting Compact Cylinder PSB6X20SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB6X20SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 20 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 PSB6X20SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×20 | 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 PSB6X20SR Is Used
Small Part Ejection
Pushes light stamped parts out of a die on a press line. The spring-return fail-safe ensures the ejector clears the tool when air drops.
Package Diverter Gate
Acts as a lightweight routing flap on a packaging conveyor. One air line drives the push, and the spring retracts the gate automatically.
Lab Test Clamp
Holds a small sample steady on a testing jig. The 6 N safe working load secures delicate components without crushing them.
Is the Airtac PSB Single Acting Compact Cylinder PSB6X20SR the Right Cylinder?
This 6 mm bore generates 10.6 N net push at 0.5 MPa. If your task needs less force, the 4 mm bore offers 4.1 N; for heavier pushes, step up to the 10 mm bore at 29.8 N. The internal spring requires a minimum 0.2 MPa to move the rod. Order by confirming the 20 mm stroke, S magnet, and R axial inlet.
The Ø3 mm rod handles coaxial thrust well but resists little side load. Over long strokes, add an external guide. The fixed TPU bumper decelerates the final few millimeters; at high speeds with tooling mass, meter-out the exhaust or use an external shock absorber.
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 PSB6X20SR FAQ
It delivers 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa maximum. The return spring sets a 0.2 MPa minimum pressure before the rod moves, and the cylinder fails safely retracted on air loss.
The S indicates a built-in piston magnet. You must purchase and mount the switch separately. It supports AirTAC reed or electronic solid-state sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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