Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M3×0.5 thread). A single air port drives the push stroke on a Ø6mm bore, 20mm stroke; the return spring resets the rod when air is released.
- BoreØ6 mm
- Stroke20 mm
- Port sizeM5×0.8
- Front-mount threadM3×0.5
- Acting typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR
The AirTAC PSBR6X20SR is a JIS pen-size single-acting push cylinder with a 6 mm bore and 20 mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it. This fail-safe design ensures the rod returns home on air loss. It delivers 10.6 N of net push at 0.5 MPa and 16.3 N at 0.7 MPa.
A built-in piston magnet supports reed or electronic switches for position sensing. The SUS316L stainless barrel resists corrosion in damp environments. You bolt the front cover directly to your fixture via an M3x0.5 thread, saving space. A fixed TPU bumper cushions the stroke ends. Plan for a safe working load of about 6 N, which accounts for friction. This equates to lifting roughly 0.5 kg vertically with a sane 2:1 margin.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M3×0.5 |
| Port size | M5×0.8 |
|---|---|
| Operating pressure | 0.3 – 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. Front cover carries the mounting thread (M3×0.5); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Push Force (Ø6mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 10.6 N |
| 0.7 MPa (max) | 16.3 N |
These are usable push 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 PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 6 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| U / R | Back cover: U 90° side inlet or R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (M3×0.5). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR Is Used
Panel Pusher
Extends to nudge lightweight electronic panels into a test socket. The spring safely pulls the 3 mm rod back when air is removed.
Part Ejector
Pushes small plastic parts off a conveyor line. The compact SUS316L body handles washdown environments without corroding.
Clamp Release
Actuates a tiny release mechanism in a tight fixture. The direct M3x0.5 front thread mounts flush without extra brackets.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR the Right Cylinder?
Choose this 6 mm bore if your task requires about 6 N of actual work at 0.5 MPa. If you need more force, the next size up is the 8 mm bore, offering 18.7 N of net push at the same pressure. For lighter duty, a smaller option is unavailable in this series, making this the most compact choice. The internal return spring requires a minimum operating pressure of 0.3 MPa before motion begins.
The direct M3x0.5 front-mount thread integrates seamlessly into small jigs. Because the piston rod is only 3 mm thick, use an external guide or linear bearing for off-axis loads over long strokes. This configuration includes an R axial inlet and a built-in magnet for solid-state or reed sensing.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M3×0.5)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract 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 0.3 – 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 PSBR Single Acting Square Head Compact Cylinder PSBR6X20SR FAQ
The net push force is 10.6 N at 0.5 MPa and 16.3 N at the maximum 0.7 MPa. The internal return spring sets a minimum operating pressure of 0.3 MPa before the rod can extend.
It mounts directly via an M3x0.5 thread on the front cover, eliminating extra brackets. The built-in S magnet works with reed or electronic switches, and the SUS316L barrel prevents rust in damp lines.
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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 PSBR Pen-Size Cylinders
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