The AirTAC Airtac PBR Pen-Size Cylinders PBR10X20SU is a double-acting pen-size mini cylinder with threaded holes in its front cover for direct mounting — no separate bracket needed. It has a Ø10mm bore, 20mm stroke, M4×0.7 front-mount thread and a SUS316L stainless barrel for corrosive settings.
The PBR10X20SU is a double-acting, single-rod JIS pen-size mini cylinder with a 10 mm bore and 20 mm stroke. Its front cover carries M4x0.7 threaded holes, so the cylinder bolts straight to your fixture from the top or bottom - no separate front bracket, fewer parts, less stack height. At 0.5 MPa it delivers about 39.3 N push and 33 N pull, rising to 55 N push at the 0.7 MPa maximum.
The barrel is SUS316L stainless, so it shrugs off damp shop air, washdown splash and mildly corrosive lines far better than a plain barrel. Air enters through the M5x0.8 port on the U back cover, which sets the inlet at 90 degrees to the axis for flat plumbing against a mounting plate. A fixed TPU bumper sits at each end, and the built-in piston magnet works with reed or electronic switches for position feedback.
| Model | Airtac PBR Pen-Size Cylinders PBR10X20SU |
|---|---|
| Series | PBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 20 mm |
| Front-mount thread | M4×0.7 |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Elastic bumper (both ends) |
| Max standard stroke | Up to 200 mm |
The front cover carries the mounting thread (M4×0.7) so the cylinder bolts directly to a fixture. Barrel is SUS316L stainless. Confirm bore, stroke and back-cover option against the product label before installation.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 39.3 N | 33.0 N |
| 0.7 MPa (max) | 55.0 N | 46.2 N |
Values are taken from the AirTAC PB/PBR thrust table. Pull acts on the smaller rod-side area, so pull force is lower than push. Size with a friction margin.
| PBR | JIS pen-size front-mount double-acting mini-cylinder series. |
|---|---|
| 10 | 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 side / R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (top or bottom bolts). Related PBR-family variants: PSBR (single-acting push), PTBR (single-acting pull); PB (back-mount) family also available.
Bolt the M4x0.7 front cover flush through a control panel or machine plate and drive a small ejector or reject pusher. The 90-degree U inlet keeps tubing flat against the panel, and the 20 mm stroke suits short part-presentation moves.
Clamp small brackets or circuit boards in a drill or assembly jig with about 39.3 N of push at 0.5 MPa. The SUS316L barrel tolerates coolant mist and wipe-down, and a switch on the magnet confirms clamp-on before the cycle starts.
Mount the cylinder body directly to a conveyor side rail and kick small parts off the line. The pen-size body fits where a bracket-mounted cylinder would not, and the fixed TPU bumpers damp the diverter at each end of the 20 mm throw.
Size both ways before committing. One bore down, the PBR8 gives 25.2 N push at 0.5 MPa - not enough if your clamp or pusher needs close to 39 N. One bore up, the PBR12 reaches 56.5 N, worth the extra diameter if loads grow or you want margin. Plan the real workload at roughly 24 N (about 60% of the 39.3 N rated push) to leave headroom for seal friction and smooth travel.
Order by bore, stroke, magnet and back cover: this unit is 10 mm bore, 20 mm stroke, magnet fitted (S) and 90-degree side inlet (U). The 4 mm rod is slim - for long strokes or off-axis loads add an external guide or linear bearing, and match bolt size and thread engagement to the M4x0.7 front holes, especially on bottom mounting.
Quick checklist
At 0.5 MPa: 39.3 N push (extend) and 33 N pull (retract). At 0.7 MPa, the maximum operating pressure: 55 N push and 46.2 N pull. Push always exceeds pull because the rod reduces the retract area. For real work, plan on roughly 24 N - about 60% of the rated push - and remember the cylinder drifts if air pressure is lost, so use an external stop where a held load matters.
Mounting is direct: the front cover has M4x0.7 threaded holes, so bolts pass straight into your fixture from the top or bottom - no separate front bracket to buy or align. Match bolt size and thread engagement carefully, especially on bottom mounting. The built-in piston magnet pairs with reed or electronic switches; the U back cover places the M5x0.8 air port at 90 degrees for flat plumbing.
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