
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX100-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X100-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 60 to 100 mm, allowing you to dial back the nominal 100 mm stroke by up to 40 mm during machine commissioning without adding external stops.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and is equipped with a magnet for position sensing. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 retract position within the 60-100 mm window during machine commissioning to accommodate varying material thicknesses without external stopper blocks.
Quickly adjust the effective stroke by up to 40 mm when switching the production line to a different package or part dimension, minimizing downtime.
The 40 mm adjustment range is ideal for applications needing precise variable end-stops or frequent product-size changeovers, replacing the need to swap out fixed-stroke SAI cylinders. It features a PT tapered port thread and operates at speeds between 30 and 800 mm/s.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 80 mm bore, 100 mm nominal stroke, 40 mm adjustment code, PT port thread, and the -S magnet option. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The 25 mm rod and M20x1.5 thread provide robust side-load capacity, though long unsupported strokes still require an external guide.
Quick checklist
The rear adjuster screw lets you mechanically shorten the 100 mm nominal stroke by up to 40 mm, providing a usable travel window of 60 to 100 mm. This stopper only sets the end position; it does not function as a lock to hold the load without air pressure.
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