
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 160mm 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 SAIJ40X160-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 160 mm travel by up to 100 mm. This creates a highly flexible 60-160 mm usable travel window, enabling precise end-position tuning at commissioning without swapping out the barrel or adding external stops. It delivers 628 N of push force at 0.5 MPa and 879 N at 0.7 MPa, making it well-suited for moderate-duty positioning tasks.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance and uses PT tapered port threads (G1/4). The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE solid-state switches. Remember that the rear adjuster functions purely as a travel stop to set deceleration and end limits; it does not lock or hold the load without live air pressure.
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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. |
| ×160 | 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.
Rapidly reconfigure the 60-160 mm travel window during packaging line format changes without replacing hardware.
Fine-tune the exact end-of-stroke position during machine setup to dial in precise clamping or ejection distances.
Adjust the retract stop on the fly for operations requiring multiple stroke depths from a single actuator.
Choose this 40 mm bore when an application requires around 628 N of push force at 0.5 MPa, which sits neatly below the 982 N offered by the 50 mm bore. The massive 100 mm adjustment range is ideal for machines handling multiple product sizes, allowing operators to change the end-stop position on the fly. If you need to hold a load securely without continuous air pressure, this standard SAIJ will not suffice, and you should look toward the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
Because the nominal 160 mm stroke is below the 300 mm threshold, side-load risks are moderate, though the 16 mm rod and M12x1.25 thread provide robust stability for standard loads. To replace an existing ISO 15552 cylinder, match the 40 mm bore, 160 mm stroke, PT G1/4 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), noting that FB, CA, CB, and CR mounts are omitted from this adjustable series.
Quick checklist
The rear adjuster screw lets you shorten the effective stroke by up to 100 mm from the nominal 160 mm, providing an adjustable travel window of 60 to 160 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
At an operating pressure of 0.5 MPa, the SAIJ40X160-100 provides 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
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