This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X100-40S, 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 SIJ32X100-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X100-40S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X100-40S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. The external stop screw lets you trim the extend stroke by up to 40mm on-site, giving a usable 60-100mm range from the 100mm nominal maximum. The direct replacement is the SAIJ32X100-40S, sharing the G1/8 port, M10x1.25 rod thread, and 27mm cushions.
Upgrading to the SAIJ family retains the interface but adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a lock; use a SAIL or BSAI variant for load holding.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X100-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X100-40S |
| Bore size | Ø32 mm |
| Stroke | 100 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 SAIJ32X100-40S 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 SAIJ32X100-40S 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. |
| ×100 | 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).
Dialing in the 40mm stop screw on the press cylinder lets operators change material bend depths without swapping the entire tooling setup.
A packaging line uses the 60-100mm extend window to reposition a diverting gate on the fly for varying carton widths.
A logistics sorting station trims the extend stroke on-site to push parcels of different sizes onto distinct takeaway lanes.
To replace the discontinued SIJ32X100-40S, order the exact direct replacement SAIJ32X100-40S. Choose the 40mm adjust window if your application requires field tuning the extend stroke between 60 and 100mm. Mounting options include FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches. For strokes of 300mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
Yes, the SIJ32X100-40S is discontinued. The direct replacement is the SAIJ32X100-40S. It shares the same ISO 15552 interface, 32mm bore, 100mm stroke, 40mm adjust window, G1/8 port, and mounting options, but features an upgraded piston seal.
The external stop screw provides a 40mm adjust window, allowing the extend stroke to be shortened on-site from the 100mm maximum down to 60mm. 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 SAIJ32X100-40S replacement — usually within 7-8 hours.