
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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 SAIJ100X800-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 3927 N of push force at 0.5 MPa and features a 75 mm adjustment range, creating a precise 725-800 mm usable travel window for commissioning flexibility. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position detection.
This model uses a SUS304 stainless steel rod (code B) for superior corrosion resistance and carries a robust M20x1.5 rod thread. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position without swapping components; it does not lock the load. For applications requiring position holding without live air pressure, an external pilot-operated check valve or the related SAIL lock cylinder is required.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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. |
| ×800 | 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 725-800 mm travel window during format size changes on a packaging line, using the rear screw to set exact retract positions without changing the cylinder.
Apply up to 7068 N of push force at 0.9 MPa for pressing operations, using the SUS304 rod in environments where moisture or corrosion would degrade standard carbon steel.
Fine-tune the end stop during initial machine commissioning to perfect the timing of an 800 mm cycle, relying on DMSE electronic sensors for high-speed feedback.
Select this 100 mm bore cylinder when an application requires substantial thrust—up to 5497 N push at 0.7 MPa—combined with variable end-position tuning. If 3927 N at 0.5 MPa is excessive, stepping down to an 80 mm bore yields 2513 N; if more power is needed, a 125 mm bore provides 6136 N. The adjustable 725-800 mm window is ideal for product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. When replacing an ISO 15552 unit, match the 100 mm bore, 800 mm stroke, G1/2 port, and mounting style.
Because the stroke is 800 mm, the M20x1.5 rod and piston assembly will experience amplified leverage on the front cap. An external guide rail must be used to prevent excessive side-loading and premature seal wear. Remember that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some standard profiles.
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 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke back by up to 75 mm, providing a usable travel window of 725 to 800 mm. It sets the end position but does not hold the load without continuous air pressure.
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