This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X225-75S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.

The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X225-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 225mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X225-75S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X225-75S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, discontinued and replaced by the exact direct replacement SAIJ32X225-75S. It uses an external stop screw to trim the extend stroke by up to 75mm on-site, yielding a usable 150-225mm window. The 32mm bore features a G1/8 port, M10x1.25 rod thread, and 27mm adjustable cushions.
The SAIJ replacement retains the interface but uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure. The stop sets end position but is not a load lock; use SAIL/BSAI for holding. The -S suffix provides a piston magnet for CS1-B/DS1-B switches.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X225-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X225-75S |
| Bore size | Ø32 mm |
| Stroke | 225 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 standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X225-75S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X225-75S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Allows field tuning of the extend stroke up to 75mm to precisely set a diverter flap angle without machining new hard stops.
Adjusts the extend endpoint on-site to handle varying package widths on a single line, tuning the push distance by up to 75mm.
Trims the extend stroke to set exact sealing head contact depth for different carton thicknesses, using the 150-225mm window.
To replace this discontinued model, specify SAIJ32X225-75S (insert A after S), retaining the 32mm bore, 225mm max stroke, 75mm adjust window, G1/8 port, and -S magnet. Choose the 75mm adjust window if you need on-site extend tuning from 150-225mm; a fixed SAI cylinder with an external stop lacks this integrated trim. Mounting reuses ISO 15552 Basic, FA, LB, or TC interfaces. For stroke lengths >=300mm, verify guide alignment to manage side loads.
Replacement checklist
Yes, the SIJ32X225-75S is discontinued. The direct replacement is the SAIJ32X225-75S, sharing the ISO 15552 interface, 32mm bore, 225mm stroke, 75mm adjust window, G1/8 port, and -S magnet.
The external stop screw trims the extend stroke by up to 75mm on-site, giving a usable 150-225mm window. The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X225-75S replacement — usually within 7-8 hours.