This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X225-40S, 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.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X225-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X225-40S
- 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S
The AirTAC SIJ80X225-40S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 225 mm nominal stroke and a 40 mm external stop screw window, allowing you to trim the extend stroke on-site down to 185 mm. The direct replacement is the SAIJ80X225-40S, matching the interface, force, and mounting.
The stop screw sets the end position but is not a load lock; without live air the piston drifts. The SAIJ upgrade uses an improved two Y-shaped one-way piston seal for lower start-up pressure, and the SAI family adds lock variants (SAIL, BSAI) the SI line lacked. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X225-40S |
| Bore size | Ø80 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 SAIJ80X225-40S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAIJ80X225-40S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S Is Used
Variable Stroke Pressing
Dialing in the exact 185-225 mm extend position on-site allows a press to accommodate varying material thicknesses without re-engineering the fixed tooling height.
Adjustable Diverter Arm
A pneumatic diverter can fine-tune its reach by up to 40 mm to handle different package widths on the fly, ensuring positive contact without overtravel.
Customizable End Stops
Reject pusher mechanisms benefit from field-tuned endpoints, letting operators shorten the stroke to match specific lane gaps without swapping the cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S with the SAIJ80X225-40S
To replace the discontinued SIJ80X225-40S, use the direct replacement SAIJ80X225-40S, reusing your FA, LB, or TC ISO 15552 mounts. The 40 mm adjust window lets you set the extend stroke precisely between 185 and 225 mm on-site. Because this is a -S model, it retains the piston magnet for position sensing. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding. Remember the stop screw sets position only; for load holding on air loss, use an external rod lock or check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X225-40S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40S FAQ
Yes, the SIJ80X225-40S is discontinued. The direct replacement is the SAIJ80X225-40S, offering the same ISO 15552 interface, 80 mm bore, 225 mm stroke, 40 mm adjust window, and G3/8 port.
The theoretical max is 513 kgf at 1.0 MPa. The external stop screw provides a 40 mm adjust window, shortening the extend stroke from 225 mm down to 185 mm. The stop sets position only and does not hold the load on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X225-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X225-40S replacement — usually within 7-8 hours.