This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X500-10, 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 SIJ100X500-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X500-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X500-10 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 10 mm on-site, giving a usable range of 490-500 mm. The direct replacement is the SAIJ100X500-10, matching the interface, force, and mounting.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets end position only; it is not a lock, and a plain cylinder drifts on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X500-10 |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100X500-10 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 SAIJ100X500-10 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. |
| ×500 | 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).
Final press depth needs exact field tuning. The 10 mm stop screw window trims the extend stroke on-site to hit precise 490-500 mm positions without re-plumbing.
Adjusting a divertor arm reach on a packaging line. The external stop screw fine-tunes the extend endpoint to handle varied product sizes on the fly.
Setting a hard mechanical end position for a heavy load. The stop screw acts as a fixed physical barrier for the extend stroke, independent of internal air pressure.
To replace the discontinued SIJ100X500-10, order the direct replacement SAIJ100X500-10, keeping the 500 mm maximum stroke and 10 mm adjust window. Choose your mounting from Basic, FA, LB, or TC. This SKU lacks the -S magnet and cannot take a magnetic switch. Because the 500 mm stroke is long, account for side-load and rod-bending by using external guides to prevent premature wear.
Replacement checklist
Yes, the SIJ100X500-10 is discontinued. The direct replacement is the SAIJ100X500-10. It shares the identical ISO 15552 interface, 100 mm bore, 500 mm stroke, 10 mm adjust window, G1/2 port, and mounting options. The SAIJ family also adds an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 10 mm on-site (usable range 490-500 mm). The stop sets end position only and is not a load lock; for held loads use an external rod lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X500-10 replacement — usually within 7-8 hours.