This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X150-40S, 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 SIJ100X150-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X150-40S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X150-40S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100mm bore and 150mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 110-150mm extension. The bore dictates a G1/2 port, M20x1.5 rod thread, and 36mm adjustable cushions.
Because this SIJ model is end-of-life, the direct replacement is the SAIJ100X150-40S, preserving the ISO 15552 mounting interface, bore, stroke, adjust window, and force. The SAIJ upgrade introduces a two-piece Y-shaped one-way piston seal for lower start-up pressure and longer life. Remember the stop screw sets end position only; it is not a load lock.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X150-40S |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100X150-40S 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 SAIJ100X150-40S 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. |
| ×150 | 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 110-150mm extend position for inserting bearings without machining hard stops.
Adjusts the extend stroke on-site to deflect varying package sizes on a sorting line.
Sets a precise physical end position for pallets, accommodating different load depths by trimming up to 40mm.
To replace the discontinued SIJ100X150-40S, specify SAIJ100X150-40S, which is a direct match for the ISO 15552 dimensions, G1/2 port, and 40mm adjust window. Choose the 40mm adjust window if your extend stroke needs on-site tuning between 110mm and 150mm. Mounting options include Basic, FA, LB, and TC. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. For strokes of 300mm or longer, carefully verify side-load constraints to prevent excessive guide wear.
Replacement checklist
Yes, the SIJ100X150-40S is discontinued. The direct replacement is the SAIJ100X150-40S, which shares the same ISO 15552 interface, 100mm bore, 150mm stroke, 40mm adjust window, and G1/2 port.
The external stop screw provides a 40mm adjust window, allowing the extend stroke to be shortened from the 150mm maximum down to 110mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X150-40S replacement — usually within 7-8 hours.