This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X200-50S, 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 SIJ32X200-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 200mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X200-50S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X200-50S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32mm bore and 200mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 150-200mm extension window. The SIJ32X200-50S is DISCONTINUED; the direct replacement is the SAIJ32X200-50S, matching the ISO 15552 mounting interface, force, and adjustability.
The SAIJ upgrade utilizes an improved two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; cylinders drift on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X200-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X200-50S |
| Bore size | Ø32 mm |
| Stroke | 200 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 SAIJ32X200-50S 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 SAIJ32X200-50S 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. |
| ×200 | 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).
Adjust the stop screw on-site to set the exact extend position for a diverter arm handling changing product sizes on the line.
Dial in the extend stroke by up to 50mm during R&D testing to probe or press components at precise intermediate depths.
To replace the discontinued SIJ32X200-50S, specify SAIJ32X200-50S for an direct match retaining the 50mm adjust window and G1/8 port. Choose the 50mm adjust window if your extend stroke needs on-site tuning between 150mm and 200mm. Mounting options include FA, LB, and TC brackets. The -S suffix ensures a piston magnet for legacy CS1-B/DS1-B sensors (current AirTAC switches are used on the SAIJ). For strokes of 300mm or longer, verify side-load limits to prevent rod binding. The external stop sets end position only; it does not lock the load.
Replacement checklist
Yes, the SIJ32X200-50S is discontinued. The direct replacement is the SAIJ32X200-50S, which shares the same ISO 15552 interface, 32mm bore, 200mm stroke, 50mm adjust window, and G1/8 port. The SAIJ features an upgraded piston seal for longer life.
The external stop screw shortens the extend stroke by up to 50mm on-site, giving a usable extension range of 150-200mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X200-50S replacement — usually within 7-8 hours.