
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 60mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ40X60-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 30 to 60 mm usable travel window. Delivering 628N of push force at 0.5 MPa, it integrates a SUS304 stainless steel rod for superior corrosion resistance and uses a PT tapered port for sealing. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of CMSE reed or DMSE electronic switches if a magnet is added later.
This adjustable-stop design enables precise end-position tuning at commissioning without swapping hardware. The rear adjuster acts purely as a travel stop to set deceleration limits, meaning it will not hold a load without live air pressure. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
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. |
|---|---|
| 40 | Bore size in mm. |
| ×60 | 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.
Dial in the exact 30 to 60mm end-position during commissioning to perfect a pressing operation without machining custom spacers.
Quickly shorten the cylinder reach by up to 30mm on a packaging line to accommodate different carton sizes on the fly.
Use the rear adjuster to set precise deceleration points for a lightweight assembly pick-and-place task requiring 628N force.
Choose this 40mm bore when an application requires 628N push force at 0.5 MPa, stepping up from a 32mm bore (402N) for heavier handling, or down from a 50mm bore (982N) to save space. An adjustable stroke is selected over a fixed SAI when a machine requires variable end-stops for rapid product changeover. To replace an ISO 15552 cylinder, match the 40mm bore, 60mm nominal stroke, 30mm adjustment, PT port thread, and the specific mounting accessory.
Because the stroke is under 300mm, side-load risks are minimal, but the 16mm rod and M12x1.25 thread still require standard alignment to prevent seal wear. For applications needing true load-holding without live pressure, select the SAIL or BSAI series instead, as the SAIJ rear stop is not a locking mechanism.
Quick checklist
The rear adjuster screw allows you to trim the effective travel back by up to 30mm, creating a usable stroke window of 30 to 60mm. It acts as a physical stop to set the end position and does not lock the load without air pressure.
At 0.5 MPa operating pressure, this 40mm bore cylinder provides 628N of push force and 528N of pull force. It can reach 1130N push force at 0.9 MPa.
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