This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X100-30, 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 SIJ100X100-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X100-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X100-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 70-100 mm extend out of the 100 mm nominal maximum. The direct replacement is the SAIJ100X100-30, matching the interface, force, and mounting.
The SAIJ upgrade utilizes an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this non-magnetic SKU lacks a -S sensor groove. The stop screw sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X100-30 |
| Bore size | Ø100 mm |
| Stroke | 100 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 SAIJ100X100-30 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 SAIJ100X100-30 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. |
| ×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).
Adjustable end-position allows operators to dial in the exact 70-100 mm extend distance for pressing bearings without swapping cylinders.
A diverting gate that must handle changing package sizes on the fly benefits from the 30 mm external stroke trim to alter the push distance.
Fine-tune the folding stroke on-site to accommodate different carton depths, using the stop screw to set the precise extend limit.
To replace the discontinued SIJ100X100-30, order the direct replacement SAIJ100X100-30, reusing your existing FA, LB, or TC ISO 15552 mounts. The 30 mm adjust window is ideal if your extend end-position needs on-site tuning between 70 and 100 mm. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors; add external sensing if required. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding. The stop screw only sets the end position; without live air the piston drifts, so use a pilot-operated check valve or SAIL/BSAI lock for held loads.
Replacement checklist
Yes, the SIJ100X100-30 is discontinued. The direct replacement is the SAIJ100X100-30. It shares the identical ISO 15552 interface, 100 mm bore, 100 mm stroke, 30 mm adjust window, G1/2 port, and mounting options, but adds an upgraded piston seal.
The external stop screw provides a 30 mm adjustment window, allowing the extend stroke to be shortened from the 100 mm maximum down to 70 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X100-30 replacement — usually within 7-8 hours.