This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ200X75-75, 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 SIJ200 Double Rod Adjustable Cylinder SIJ200X75-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ200X75-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ200X75-75 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 200mm bore. Its external stop screw lets you trim the extend stroke by up to 75mm on-site, dropping the usable extension from the 75mm nominal maximum down to zero. This SIJ model is discontinued; the direct replacement is the SAIJ200X75-75, retaining the same interface, force, and adjustability.
The SAIJ successor introduces an upgraded piston seal featuring two Y-shaped one-way elements for low start-up pressure and extended life. The external stop sets the end position but is not a load lock; for held loads, use an external rod lock or the SAIL/BSAI variants. This SKU lacks a magnet and cannot take a switch.
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X75-75 |
| Bore size | Ø200 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ200X75-75 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAIJ200X75-75 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). |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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).
Demands field stroke tuning to set precise 0-75mm extend endpoints during heavy press tooling changes without swapping cylinders.
Needs exact extend positioning for multi-part alignment, trimming the stroke by up to 75mm to prevent jig overtravel.
To replace the discontinued SIJ200X75-75, order the direct replacement SAIJ200X75-75, which preserves the ISO 15552 mounting interface, G3/4 port, and 75mm adjust window. Choose the 75mm adjust window if your assembly requires on-site extend tuning from 0 to 75mm; otherwise, a fixed SAI cylinder is simpler. Mounting options include Basic, FA, LB, and TC. Because this SKU has no -S suffix, it cannot accept a magnetic sensor. For strokes at or above 300mm, carefully manage side loading to prevent premature seal wear.
Replacement checklist
Yes, the SIJ200X75-75 is discontinued. The direct replacement is the SAIJ200X75-75. It shares the same ISO 15552 interface, 200mm bore, 75mm stroke, 75mm adjust window, G3/4 port, and mounting options, but adds an upgraded piston seal.
The external stop screw window is 75mm, meaning you can shorten the extend stroke by up to 75mm 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 SAIJ200X75-75 replacement — usually within 7-8 hours.