This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X800-30S, 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 SIJ100X800-30S 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 SAIJ100X800-30S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X800-30S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the SAIJ100X800-30S. It features a 100mm bore, G1/2 port, M20x1.5 rod thread, and a 36mm adjustable air cushion. The external stop screw lets you trim the extend stroke by up to 30mm on-site, giving a usable extend range of 770-800mm. The nominal 800mm stroke is the maximum. This stop sets the end position but is not a load lock.
The SAIJ100X800-30S is a direct replacement retaining the same ISO 15552 mounting interface, bore, stroke, force, and port. The SAI family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. Note that plain cylinders drift on air loss; use an external rod lock or SAIL/BSAI variant for load holding.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X800-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X800-30S |
| 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 SAIJ100X800-30S 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 SAIJ100X800-30S 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).
Needs field stroke tuning to set precise 770-800mm end positions during press setup, preventing over-travel without changing the cylinder body.
Requires trimming the extend stroke by up to 30mm on-site to accommodate different package sizes on the fly without swapping out the actuator.
Uses the external stop screw to fine-tune the end position for varying pallet depths, ensuring accurate placement before downstream handling.
To replace the discontinued SIJ100X800-30S, specify SAIJ100X800-30S for an direct match retaining the G1/2 port and ISO 15552 interface. Choose the 30mm adjust window if your extend stroke needs on-site tuning between 770 and 800mm. Reuse FA, LB, or TC mounts directly. The -S suffix provides a piston magnet for position sensing. For this 800mm long stroke, verify side-load limits and use external guides to prevent rod bending.
Replacement checklist
Yes, the SIJ100X800-30S is discontinued. The direct replacement is the SAIJ100X800-30S. It shares the same ISO 15552 interface, 100mm bore, 800mm stroke, 30mm adjust window, G1/2 port, and force ratings, while adding an upgraded piston seal.
The external stop screw provides a 30mm adjust window, allowing you to trim the extend stroke from the 800mm maximum down to 770mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X800-30S replacement — usually within 7-8 hours.