This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X800-30, 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 SIJ100X800-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 800mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X800-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X800-30 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. Its external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 770-800 mm range from the 800 mm nominal maximum. The direct replacement is the SAIJ100X800-30, matching the G1/2 port, M20x1.5 rod thread, and 36 mm cushions.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a -S magnet, so it cannot accept a magnetic switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X800-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X800-30 |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100X800-30 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 SAIJ100X800-30 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. |
| ×800 | 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).
Achieve precise 770-800 mm extend endpoints for seating bearings without machining custom spacers.
Dial in the exact 30 mm adjustment window to align a divertor arm perfectly with varying package sizes.
Fine-tune the stopping distance on a 100 mm bore actuator to accommodate slight pallet length variations.
To replace the discontinued SIJ100X800-30, order the direct replacement SAIJ100X800-30, retaining your existing ISO 15552 FA, LB, or TC mounts. Choose the 30 mm adjust window if you need precise 770-800 mm extend tuning. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. Finally, at 800 mm stroke, minimize side-load and rod-bending by using external guides to support the load.
Replacement checklist
Yes, the SIJ100X800-30 is discontinued. The direct replacement is the SAIJ100X800-30, offering the same ISO 15552 interface, 800 mm stroke, 30 mm adjust window, G1/2 port, and force. The SAIJ adds an upgraded piston seal for longer life.
The external stop screw provides a 30 mm adjust window, allowing the extend stroke to be trimmed from 800 mm down to 770 mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X800-30 replacement — usually within 7-8 hours.