This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X1000-75, 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 SIJ100X1000-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X1000-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X1000-75 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 1000 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 925-1000 mm window. The SIJ series is discontinued; the direct replacement is the SAIJ100X1000-75, sharing the same interface, force, and mounting.
The SAIJ successor uses an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a -S magnet, so it cannot take a magnetic switch. The stop screw sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant. At 1000 mm, use external guides to prevent rod bending.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X1000-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X1000-75 |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAIJ100X1000-75 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 SAIJ100X1000-75 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. |
| ×1000 | 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).
Uses the 75 mm stop screw to dial in the exact extend position on a 1000 mm stroke press, accommodating material thickness variations without re-mounting the cylinder.
Adjusts the extend stroke on-site to meet changing package sizes on a conveyor line, using the 925-1000 mm usable window to set precise divert distances.
To replace the discontinued SIJ100X1000-75, order the direct replacement SAIJ100X1000-75 (same ISO 15552 mounting, G1/2 port, and 75 mm adjust window). Choose the 75 mm adjust window if you need field tuning of the extend end position. Mounting options include Basic, FA, LB, and TC. As this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. Because the stroke is 1000 mm (>=300), external guides are required to manage side-load and rod-bending risks.
Replacement checklist
Yes, the SIJ100X1000-75 is discontinued. The direct replacement is the SAIJ100X1000-75. It shares the same ISO 15552 interface, 100 mm bore, 1000 mm stroke, 75 mm adjust window, G1/2 port, and mounting, but adds an upgraded piston seal.
The external stop screw window is 75 mm, allowing the extend stroke to be trimmed from 1000 mm down to 925 mm on-site. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X1000-75 replacement — usually within 7-8 hours.