This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X200-40S, 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 SIJ100X200-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X200-40S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X200-40S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100mm bore and 200mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 160-200mm extension window. The bore dictates a G1/2 air port, M20x1.5 rod thread, and 36mm adjustable air cushions.
The direct replacement is the SAIJ100X200-40S, retaining the same interface, force, and porting. The SAIJ upgrade features a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note the stop screw sets end position but is not a load lock; use SAIL or BSAI variants for held loads.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X200-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X200-40S |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAIJ100X200-40S 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 SAIJ100X200-40S 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. |
| ×200 | 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).
Adjustable end-position allows operators to dial in precise 160-200mm press strokes for inserting bearings without changing the entire cylinder setup.
Trimming the extend stroke by up to 40mm on-site accommodates different package sizes on a packaging line, repositioning the stop face quickly.
Fine-tunes the pusher stroke for various pallet depths, ensuring accurate placement without risking over-travel damage to the goods.
To replace the discontinued SIJ100X200-40S, order the direct replacement SAIJ100X200-40S, ensuring your ISO 15552 mounting (Basic, FA, LB, or TC) and G1/2 porting transfer directly. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAIJ uses current AirTAC switches. If more force is required, the 125mm bore offers 6136N. The 40mm adjust window is ideal for fine-tuning the 160-200mm extend range without machining. Because the nominal stroke is 200mm, side-load concerns are minimal, but always verify rod-end alignment. Remember, the stop screw sets end position and does not hold loads on air loss.
Replacement checklist
Yes, the SIJ100X200-40S is discontinued. The direct replacement is the SAIJ100X200-40S, which shares the identical ISO 15552 interface, 100mm bore, 200mm stroke, 40mm adjust window, G1/2 port, and mounting options. The SAIJ features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw window is 40mm, allowing you to shorten the 200mm maximum extend stroke down to 160mm on-site. The stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X200-40S replacement — usually within 7-8 hours.