
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX75-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 75mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ32X75-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 45-75 mm usable travel window by allowing you to dial back the 75 mm nominal stroke by up to 30 mm.
This variant uses a SUS304 stainless steel rod for corrosion resistance and features PT tapered port threads. It includes variable air cushions at both ends and extruded aluminum barrel sensor grooves on both sides. The rear adjuster acts strictly as a mechanical stop to fine-tune the end position during commissioning without adding external stops.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 distance within the 45-75 mm window during machine commissioning without machining external stop collars.
Quickly adjust the stroke length on packaging lines when switching to a different product size, reducing setup downtime.
The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers without swapping cylinders. For strokes of 75 mm, side-load is minimal, but always guide long unsupported loads.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 75 mm stroke, PT port thread, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. This SAIJ variant omits FB, CA, CB, and CR mounts. Because the adjuster is only a stop and the cushions provide deceleration, this cylinder will not hold a load without live air; use a SAIL or BSAI series for fail-safe load holding.
Quick checklist
At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 75 mm nominal stroke by up to 30 mm, creating a 45-75 mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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