Airtac PSB Single Acting Compact Cylinder PSB6X40SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB6X40SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø6mm bore and 40mm 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
- Stroke40 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM5×0.8
- 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 PSB Single Acting Compact Cylinder PSB6X40SR
The AirTAC PSB6X40SR is a JIS pen-size single-acting push cylinder with a 6 mm bore and 40 mm stroke. Air entering the single M5x0.8 port extends the Ø3 mm rod, while an internal spring retracts it upon exhaust release. This single-line design simplifies valving and tubing, providing 10.6 N of net push at 0.5 MPa after spring deduction.
Built with a SUS304 stainless barrel and slim body, it fits tight jigs and light end-of-arm tooling. The built-in magnet (-S) supports reed or electronic switches, and the R axial inlet keeps plumbing inline. A fixed TPU bumper cushions the stroke ends, though at higher speeds with real mass you should meter-out the exhaust or add an external shock absorber.
Airtac PSB Single Acting Compact Cylinder PSB6X40SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB6X40SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 40 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 PSB6X40SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×40 | 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 PSB6X40SR Is Used
Small Part Ejection
Pushes lightweight plastic components out of a machining fixture, with the spring safely pulling the rod back when air drops.
Package Deflector
Acts as a compact sorting gate on a narrow conveyor, using 10.6 N net push to redirect small cartons down a chute.
Lab Sample Clamp
Holds a delicate test tube against a sensor plate, providing a gentle 6 N safe working load without crushing the glass.
Is the Airtac PSB Single Acting Compact Cylinder PSB6X40SR the Right Cylinder?
At 0.5 MPa this 6 mm bore yields 10.6 N net push (16.3 N at the 0.7 MPa maximum). Plan for a safe working load of about 6 N (roughly 60% of the 0.5 MPa figure) to account for seal friction. If you need less force, the Ø4 bore offers 4.1 N; for heavier tasks, the Ø10 bore provides 29.8 N. The internal spring ensures the rod fails-safe to the retracted position on air loss, but also sets a 0.2 MPa minimum pressure before motion begins.
With a 40 mm stroke, the slender Ø3 mm rod needs an external guide or linear bearing to prevent side-loading. Confirm your ordering essentials: 6 mm bore, 40 mm stroke, -S magnet, R axial back cover, and any LB/FA/CJ mounting brackets.
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 PSB6X40SR FAQ
The net usable push force is 10.6 N at 0.5 MPa and 16.3 N at 0.7 MPa (the maximum operating pressure). Because the internal return spring opposes the air stroke, a minimum of 0.2 MPa is required before the rod moves. On air loss, the spring fails-safe to the retracted position.
The -S suffix indicates a built-in piston magnet compatible with AirTAC reed or electronic switches. Cushioning is handled by a fixed TPU bumper at each end that decelerates the last few millimeters of travel. It is not adjustable, so at high speeds with real tooling mass you should meter-out the exhaust or add an external shock absorber.
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 PSB Pen-Size Cylinders
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