
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX70-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 70mm 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 SAIJ100X70-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 70 mm nominal stroke by up to 10 mm for a precise 60-70 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it handles demanding changeovers without requiring external stops. This configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors.
Because the adjuster acts purely as a mechanical stop at the retract end, it decelerates the load but does not hold position without live air. For load-holding without pressure, an external rod lock or a SAIL/BSAI variant is required. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX70-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 70 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. |
| ×70 | 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 60-70 mm travel window during product size changes without swapping the cylinder or bolting on external stops.
Fine-tune the retract end position at commissioning to perfect seating forces using the rear 10 mm adjustment screw.
Leverage the 3927 N push force and SUS304 stainless steel rod for pressing operations in washdown or corrosive environments.
Choose this 100 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is insufficient but a 125 mm bore (6136 N) is overkill. The adjustable stroke is ideal for machine setups requiring fine end-position tuning during commissioning, eliminating the need to swap cylinders for minor position shifts. Since the stroke is under 300 mm, side-load risks are moderate, but the robust 25 mm rod and M20x1.5 thread handle standard loads well.
To replace an ISO 15552 cylinder, match the 100 mm bore, 70 mm stroke, 10 mm adjustment, PT tapered ports, and the -S magnet. Remember that the rear screw stopper is not a lock; it only sets the travel end while air pressure is active.
Quick checklist
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 70 mm nominal stroke by up to 10 mm, creating a 60-70 mm usable travel window. It decelerates the load but does not hold position without live air pressure.
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