
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX135-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 135mm 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 SAIJ80X135-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 105-135 mm, letting you dial back the nominal 135 mm stroke by up to 30 mm during commissioning.
This variant uses a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed or DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR variants.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX135-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 135 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. |
| ×135 | 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 a 105-135 mm window during machine setup without external stopper blocks.
Quickly adjust the stroke end-point on a packaging line when switching to a different product size.
The adjustable rear stopper allows precise end-position tuning on product changeovers without swapping cylinders or adding external stops. The PT tapered port and G3/8 thread size match standard pneumatic plumbing.
Note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure. For load-holding without continuous air, select a SAIL or BSAI cylinder. The 25 mm rod and M20x1.5 thread handle high side loads, though any stroke over 300 mm requires an external guide.
Quick checklist
At the maximum operating pressure of 1.0 MPa, the push force reaches 513 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 30 mm. This creates a usable travel window of 105-135 mm, allowing fine-tuning of the end position without replacing the cylinder.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.