This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X225-30, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X225-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 225mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X225-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X225-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore and 225 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 195-225 mm window. This SKU has no -S magnet and cannot accept a magnetic switch. As a direct, the SAIJ100X225-30 replaces it exactly.
The SAIJ successor retains the ISO 15552 mounting interface, force, and adjust window, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The stop screw sets end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X225-30 |
| Bore size | Ø100 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ100X225-30 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAIJ100X225-30 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). |
|---|---|
| 100 | 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).
Needs field stroke tuning to dial in the exact 195-225 mm extend position for seating bearings without overstressing the fixture.
Requires adjustable reach to alter the pusher endpoint on-site by up to 30 mm as product widths change on the line.
Uses the external stop screw to fine-tune the flap folding stroke during format changeovers, ensuring precise 225 mm max extension.
To replace the discontinued SIJ100X225-30, order the direct replacement SAIJ100X225-30, which preserves the G1/2 port, 25 mm rod, 36 mm adjustable cushion, and FA/LB/TC mountings. Choose the 30 mm adjust window if your extend stroke needs on-site tuning between 195 and 225 mm. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add external physical stops or switches if detection is required. For strokes at or above 300 mm, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SIJ100X225-30 is discontinued. The direct replacement is the SAIJ100X225-30, which matches the ISO 15552 interface, 100 mm bore, 225 mm stroke, 30 mm adjust window, G1/2 port, and mounting options.
The external stop screw offers a 30 mm adjust window, allowing the extend stroke to be shortened on-site from the 225 mm maximum down to 195 mm.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X225-30 replacement — usually within 7-8 hours.