This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X120-75, 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 SIJ100X120-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 120mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X120-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X120-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. The external stop screw lets you trim the extend stroke by up to 75mm on-site, giving a usable 45-120mm window. The direct replacement is the SAIJ100X120-75, matching the G1/2 port, M20x1.5 rod, and 36mm cushions.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a magnet (-S) so it cannot take a switch. The stop sets end position but is not a lock; use SAIL or BSAI for held loads.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X120-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X120-75 |
| Bore size | Ø100 mm |
| Stroke | 120 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 SAIJ100X120-75 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 SAIJ100X120-75 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. |
| ×120 | 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).
Adjusting the extend stop on-site allows a single cylinder to drive multiple part lengths without swapping the entire actuator assembly.
Fine-tune the extend reach by up to 75mm to perfectly align a diverting gate as package sizes change on the line.
Set precise end positions for varying pallet depths, using the external screw to shorten the stroke exactly where needed.
To replace the discontinued SIJ100X120-75, order the direct replacement SAIJ100X120-75 to reuse your ISO 15552 mounts. The -75 adjust window allows trimming the 120mm nominal extend stroke down to 45mm on-site. Reuse FA, LB, or TC mounts. As this SKU has no -S magnet, it cannot accept a sensor; add one only if switching to a sensed SAIJ. For strokes >=300mm, verify side-load guide tolerance.
Replacement checklist
Yes, the SIJ100X120-75 is discontinued. The direct replacement is the SAIJ100X120-75. It matches the ISO 15552 interface, 100mm bore, 120mm stroke, 75mm adjust window, G1/2 port, and mounting.
It is double-acting double-rod with a 100mm bore, G1/2 port, M20x1.5 rod, and 36mm cushions. The external stop trims the extend stroke by up to 75mm (usable 45-120mm).
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X120-75 replacement — usually within 7-8 hours.