This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X125-100S, 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 SIJ80X125-100S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X125-100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X125-100S
- 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 SIJ80X125-100S
The AirTAC SIJ80X125-100S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 125 mm nominal stroke and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 25-125 mm end position. The direct replacement is the SAIJ80X125-100S, matching the G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushion. The stop screw sets the end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Upgrading to the SAIJ brings an upgraded two-piece Y-shaped piston seal for lower start-up pressure, and the wider SAI family adds SAIF and BSAI variants the SIJ lacked. Speed is 30-800 mm/s.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-100S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-100S |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIJ80X125-100S 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 SAIJ80X125-100S 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 SIJ80X125-100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SIJ80X125-100S Is Used
Variable Depth Pressing
Dial in exact material indentation on an assembly line by trimming the extend stroke up to 100 mm without swapping cylinders.
Adjustable Diverter Arm
Tune the pusher reach on the fly to handle changing package sizes, using the 25-125 mm usable stroke window.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-100S with the SAIJ80X125-100S
To replace the discontinued SIJ80X125-100S, order the direct replacement SAIJ80X125-100S, reusing your existing ISO 15552 FA, LB, or TC mounting hardware and CS1-B/DS1-B sensors via the -S magnet. Choose the 100 mm adjust window if your process requires trimming the 125 mm extend stroke down to a 25 mm minimum. For strokes at or above 300 mm, verify your side-load limits to prevent guide wear. Remember the stop screw only sets end position; it will not hold a load on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-100S
- ✓ 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 SIJ80X125-100S FAQ
Yes, the SIJ80X125-100S is discontinued. The direct replacement is the SAIJ80X125-100S. It shares the same ISO 15552 interface, 80 mm bore, 125 mm stroke, 100 mm adjust window, G3/8 port, and mounting, but adds an upgraded piston seal.
The external stop screw provides a 100 mm adjust window, allowing you to shorten the 125 mm nominal extend stroke down to 25 mm. The stop sets position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X125-100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X125-100S replacement — usually within 7-8 hours.