
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX105-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X105-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel by up to 30 mm. This creates a usable 75-105 mm stroke window, allowing you to dial in the exact retract end-position during commissioning without adding external stops.
This variant includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and is equipped with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting. It uses a PT tapered port and provides variable air cushions at both ends to decelerate the load smoothly.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Quickly adjust the 75-105 mm retract distance on packaging lines when switching between different container sizes without changing cylinder hardware.
Fine-tune the final resting position of a heavy clamping fixture during machine commissioning to achieve perfect alignment against the workpiece.
Provide a flexible physical stop for assembly stations where the exact bottoming position must be tweaked per batch of raw materials.
The adjustable 75-105 mm travel window is perfect for applications requiring variable end-stops or frequent product-size changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. To match this ISO 15552 replacement exactly, specify the 80 mm bore, 105 mm stroke, 30 mm adjustment, PT port, and the -S magnet option.
Because the nominal stroke is 105 mm, side-loading is minimal, but always ensure the M20x1.5 rod thread is aligned correctly to maximize seal life. Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the 105 mm nominal stroke by up to 30 mm, creating a usable travel window of 75 to 105 mm. This lets you set the exact retract end-position at commissioning without external stops.
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