
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX850-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 850mm 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 SAIJ32X850-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 775 to 850 mm, allowing you to dial in the exact retract position during machine commissioning without adding external stops.
This variant includes a standard magnet (-S) for use with AirTAC CMSE reed and DMSE solid-state sensors housed in the dual-side barrel grooves. The piston rod utilizes SUS420J2 stainless steel for improved corrosion resistance, and the PT tapered port threads match the G1/8 interface. Because the 850 mm stroke is long for a 32 mm bore, an external guide is recommended to manage side loads.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 850 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. |
| ×850 | 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 retract distance by up to 75 mm to accommodate different product lengths on a packaging line without physically swapping the cylinder.
Dial in the exact 775 to 850 mm travel window during line setup to perfect the transfer position of delicate components.
Use the integrated magnet with DMSE solid-state sensors in the barrel grooves to confirm position across the extended 850 mm travel.
Choose this adjustable model when your assembly requires precise end-position tuning on a long-stroke, lightweight actuator. If you need greater thrust, stepping up to a 40 mm bore raises the 0.5 MPa push force to 628 N, but the 32 mm bore offers a more compact ISO 15552 footprint. The rear adjuster acts purely as a mechanical stop; it does not hold the load without live air. For positive holding without pressure, select a SAIL or BSAI series cylinder instead.
This SKU serves as a direct ISO 15552 mounting-interface replacement for machines needing a 32 mm bore, 850 mm nominal stroke, 75 mm adjustment range, PT port threads, and an integrated magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. For strokes of 850 mm, external rod guidance is highly recommended to prevent deflection.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm, creating a usable travel window of 775 to 850 mm. It functions as a mechanical stop for end-position tuning and is not a lock.
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