This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X600-75, 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 SIJ100X600-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 600mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X600-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X600-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 600 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 525-600 mm window. This 100 mm bore utilizes a G1/2 port, M20x1.5 rod thread, and 36 mm adjustable cushions. The direct replacement is the SAIJ100X600-75, preserving the interface, force, and mounting.
The SAIJ upgrade features an improved two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnetic SKU cannot take a 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. On 600 mm strokes, use external guides to prevent rod bending.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X600-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X600-75 |
| Bore size | Ø100 mm |
| Stroke | 600 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 SAIJ100X600-75 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 SAIJ100X600-75 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. |
| ×600 | 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 on-site extend stroke trimming up to 75 mm to dial in exact press-fit depths for varying pin insertion lengths without machining spacers.
Adjusts the extend endpoint on a sorting diverter to accommodate different package widths on the fly, ensuring precise routing without repositioning the cylinder.
Provides a field-tunable physical end stop for accumulating loads of varying sizes, letting operators shorten the 600 mm stroke by up to 75 mm as needed.
To replace the discontinued SIJ100X600-75, order the exact direct replacement SAIJ100X600-75. You can reuse existing FA, LB, or TC ISO 15552 mounts. Choose the 75 mm adjust window if your end-position tuning requires trimming the 600 mm extend stroke down to 525 mm on-site. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors; confirm sensing needs. For the 600 mm stroke, external guides are recommended to manage side-load and rod-bending risks. Remember the stop screw is not a lock; for load holding without live air, specify an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SIJ100X600-75 is discontinued. The direct replacement is the SAIJ100X600-75. It shares the same ISO 15552 interface, 100 mm bore, 600 mm stroke, 75 mm adjust window, G1/2 port, and mounting options, while adding an upgraded piston seal.
The external stop screw provides a 75 mm adjust window, allowing the 600 mm extend stroke to be shortened to 525 mm on-site. The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X600-75 replacement — usually within 7-8 hours.