
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm stroke, G1/2 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 SAIJ100X180-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 150-180 mm usable travel window, allowing you to dial back the 180 mm nominal stroke by up to 30 mm during commissioning. Equipped with a robust 25 mm rod and M20x1.5 thread, it delivers 3927 N of push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa.
This model uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features PT tapered port threads (G1/2). The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a travel stop to fine-tune the end position without adding external physical stops.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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.
Fine-tune the 150-180 mm travel window during product size changeovers without swapping cylinders or bolting on external stopper blocks.
Dial in the exact retract position within the 30 mm adjustment range to perfectly align parts before a clamping operation.
Adjust the rear stopper screw on the fly to compensate for mechanical wear or tooling offsets over the machine's life cycle.
Choose this 100 mm bore cylinder when an 80 mm bore falls short of the required thrust; stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, whereas this 100 mm unit provides 3927 N. The adjustable stroke is ideal for product changeovers where the exact end-of-stroke position varies by up to 30 mm, eliminating the need to physically swap out a fixed-stroke SAI cylinder. For any application approaching the 300 mm stroke mark, ensure external guides are used to support the rod against side loads.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 180 mm stroke, 30 mm adjustment range, PT G1/2 port, and your required mounting bracket (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that this plain SAIJ variant does not include a magnet (-S) for sensors. Because the rear adjuster and air cushions only decelerate the load, this cylinder will not hold its position without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Quick checklist
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. If you increase the operating pressure to 0.9 MPa, the push force reaches 7068 N.
The rear adjuster screw acts as a mechanical stop, letting you shorten the 180 mm nominal stroke anywhere down to 150 mm. It only sets the travel end and decelerates the load; it does not lock or hold the load without continuous air pressure.
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