This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X700-40, 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 SIJ100X700-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X700-40, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X700-40 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the direct replacement SAIJ100X700-40. It uses an external stop screw to trim the extend stroke by up to 40 mm on-site, yielding a usable 660-700 mm stroke. The 100 mm bore features a G1/2 port, M20x1.5 rod thread, and 36 mm adjustable cushions. The SAIJ replacement retains the exact interface, force, and mounting but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Note this SKU lacks a -S magnet and cannot accept a sensor. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X700-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X700-40 |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAIJ100X700-40 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 SAIJ100X700-40 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. |
| ×700 | 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).
Dialing in a 660-700 mm press extend on-site to accommodate varying insert heights without machining custom spacers.
Adjusting a diverter arm's end position by up to 40 mm to route different carton sizes on a packaging line.
Fine-tuning the extend stop point for mixed pallet depths, ensuring positive contact without repositioning the cylinder.
To replace the discontinued SIJ100X700-40, order the SAIJ100X700-40 direct: it preserves the 700 mm max stroke, 40 mm adjust window, G1/2 port, and FA/LB/TC mountings. Choose the 40 mm adjust window if your extend endpoint needs 660-700 mm of field tuning. Because this SKU has no -S suffix, it cannot support a magnetic switch; add sensing externally if needed. At 700 mm, the rod is susceptible to bending; ensure external guides absorb side loads to prevent premature seal wear.
Replacement checklist
Yes, the SIJ100X700-40 is discontinued. The direct replacement is the SAIJ100X700-40, which shares the identical ISO 15552 interface, 100 mm bore, 700 mm max stroke, 40 mm adjust window, and G1/2 port. The SAIJ family also adds upgraded Y-shaped piston seals and introduces SAIL and BSAI lock variants the SIJ lacked.
The external stop screw window is 40 mm, allowing the extend stroke to be trimmed from 700 mm down to 660 mm on-site. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X700-40 replacement — usually within 7-8 hours.