This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X200-75S, 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 SIJ100X200-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X200-75S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X200-75S is a discontinued double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 100mm bore and G1/2 port. The external stop screw lets you trim the extend stroke by up to 75mm on-site, yielding a usable 125-200mm extension from the 200mm nominal maximum. The direct replacement is the SAIJ100X200-75S, matching the bore, force, adjust window, and mounting.
The SAIJ successor retains the ISO 15552 mounting interface for direct reuse and adds an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; for held loads use SAIL/BSAI variants. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X200-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X200-75S |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAIJ100X200-75S 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 SAIJ100X200-75S 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. |
| ×200 | 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).
Allows operators to dial in the exact 125-200mm extend position on-site for pressing bearings without machining custom spacers.
Adjusts the extend stroke to deflect varying package sizes on a conveyor line, accommodating profile changes quickly.
Trims the forward stroke to match different container heights, ensuring consistent sealing pressure across product formats.
To replace the discontinued SIJ100X200-75S, order the exact direct replacement SAIJ100X200-75S, which preserves the 75mm adjust window, 200mm max stroke, and G1/2 port. Choose the 75mm adjust window if your extend stroke needs on-site tuning between 125mm and 200mm. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures a piston magnet is present for legacy CS1-B/DS1-B sensors. Because the 200mm stroke is under 300mm, side-load concerns are minimal, but always verify rod end alignment.
Replacement checklist
Yes, the SIJ100X200-75S is discontinued. The direct replacement is the SAIJ100X200-75S, which shares the same ISO 15552 interface, 100mm bore, 200mm max stroke, 75mm adjust window, and G1/2 port. The SAIJ family also adds an upgraded piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 75mm on-site, giving a usable extension of 125-200mm. 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 SAIJ100X200-75S replacement — usually within 7-8 hours.