
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX80-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X80-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, allowing you to dial back the nominal 80 mm travel by up to 40 mm. This creates a highly versatile 40 to 80 mm usable travel window, perfect for fine-tuning end positions during commissioning or product changeovers without swapping out the hardware.
This specific SKU is configured with a SUS420J2 stainless steel rod (material code A) for enhanced resistance to corrosion and surface wear compared to standard carbon steel. The integrated magnet (-S) directly supports AirTAC CMSE reed and DMSE solid-state sensors, which seat neatly into the dual-side extruded aluminum barrel grooves. It features PT tapered port threads (G1/2) and variable air cushions at both ends to decelerate the load smoothly.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX80-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 clamping distance between 40 and 80 mm on the fly, allowing operators to adapt machinery to varying product dimensions without replacing the cylinder.
Speed up production line format changes by turning the rear adjuster screw to shift the end-of-stroke position, eliminating the need to physically swap out actuator hardware.
Choose this 100 mm bore when an 80 mm stroke requires exact end-position calibration, as the rear stopper screw provides a 40 mm adjustment band that a fixed-stroke SAI cannot match. If your application demands less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa; conversely, a 125 mm bore provides 6136 N for heavier payloads. Remember that the rear adjuster acts purely as a travel stop and the air cushions only manage deceleration—neither will hold a load safely without continuous live air pressure. For fail-safe load holding, consider an external pilot-operated check valve or the AirTAC SAIL lock series.
When matching this ISO 15552 dimensionally interchangeable cylinder for a retrofit, verify the 100 mm bore, 80 mm stroke, 40 mm adjuster, PT port threads, and the -S magnet requirement. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Since the 20 mm rod and M20x1.5 thread handle side loads well, this robust profile cylinder integrates seamlessly into existing setups.
Quick checklist
If you increase the pressure to 0.7 MPa, the push force rises to 5497 N.
The rear adjusting screw acts as an external stopper that can shorten the nominal 80 mm stroke by up to 40 mm, giving you a usable travel window of 40 to 80 mm. It is a travel stop only, not a lock, and it does not hold the load without live air pressure.
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