This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X225-40, 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.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 225mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X225-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke225 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X225-40
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40
The AirTAC SIJ100X225-40 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore and 225 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 185-225 mm window. The direct replacement is the SAIJ100X225-40, matching the G1/2 port, M20x1.5 rod thread, 36 mm cushions, and all mounting interfaces.
The SAIJ successor retains the ISO 15552 dimensions but incorporates an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. This non-magnetic SKU lacks a -S piston magnet and cannot accept legacy CS1-B/DS1-B switches. Remember the stop screw sets end position only; it is not a lock, and a plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X225-40 |
| Bore size | Ø100 mm |
| Stroke | 225 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 SAIJ100X225-40 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAIJ100X225-40 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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).
Where the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40 Is Used
Press Fit Tuning
Allows operators to fine-tune the extend stroke by up to 40 mm on-site to dial in exact press-fit depths without swapping cylinders.
Variable Length Diverter
Adjusts the extend endpoint on a sorting line to accommodate different package sizes on the fly using the 185-225 mm stroke window.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40 with the SAIJ100X225-40
To replace the discontinued SIJ100X225-40, order the direct replacement SAIJ100X225-40, keeping the 40 mm adjust window and 225 mm nominal stroke. Reuse existing FA, LB, or TC ISO 15552 mounts. Because this SKU lacks the -S magnet, it cannot support position sensing. For strokes of 300 mm or longer, carefully manage side-load moments to prevent premature seal wear. The external stop screw merely sets the end position and is not a load lock; for load holding, select an external rod lock, a pilot-operated check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X225-40
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X225-40 FAQ
Yes, the SIJ100X225-40 is discontinued. The direct replacement is the SAIJ100X225-40, which shares the identical ISO 15552 interface, 100 mm bore, 225 mm stroke, 40 mm adjust window, G1/2 port, and mounting options. The SAIJ family also features an upgraded piston seal for longer life.
The external stop screw allows you to shorten the extend stroke by up to 40 mm on-site, creating a usable 185-225 mm window. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X225-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X225-40 replacement — usually within 7-8 hours.