
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX250-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm 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 SAIJ32X250-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 210 to 250 mm, allowing you to dial back the 250 mm nominal stroke by up to 40 mm during machine commissioning.
This variant uses a SUS304 stainless steel rod for corrosion resistance and has a PT tapered G1/8 port. The extruded aluminum barrel includes sensor grooves on both sides. Because it lacks a piston magnet, it requires external or separately mounted sensors for position detection rather than CMSE or DMSE switches.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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. |
| ×250 | 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.
Fine-tune the end-of-stroke position by up to 40 mm during setup without physically swapping cylinders or machining external stopper blocks.
Quickly adapt the 210 to 250 mm travel window on packaging lines when running slightly shorter product lengths.
Choose this 32 mm bore adjustable cylinder when you need precise end-position tuning without adding external stops. The rear adjuster acts only as a travel stop for deceleration; it does not hold the load without live air. For load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 250 mm stroke, 40 mm adjustment range, PT G1/8 port, and SUS304 rod material. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since the stroke is 250 mm, ensure adequate guidance to prevent excessive side loading on the 12 mm rod.
Quick checklist
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 250 mm down to 210 mm. This allows precise end-position tuning at commissioning, but it does not lock the load without continuous air pressure.
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