This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X80-40S, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X80-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X80-40S
- 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S
The AirTAC SIJ100X80-40S is a discontinued double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 100mm bore and G1/2 port. An external stop screw lets you trim the extend stroke by up to 40mm on-site, giving a usable 40-80mm window from the 80mm nominal maximum. The direct replacement is the SAIJ100X80-40S, matching the interface, force, and mounting.
The SAIJ successor retains the ISO 15552 mounting dimensions for direct reuse of FA, LB, and TC brackets, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Note the stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL variant for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X80-40S |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAIJ100X80-40S 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 SAIJ100X80-40S 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 SIJ100X80-40S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SIJ100X80-40S Is Used
Press Fit Tuning
Allows precise on-site stroke reduction up to 40mm to set exact pressing depths without machining spacers.
Divertor Adjustment
Enables field tuning of the extend stroke to accommodate varying package sizes on the fly.
Sealing Head Setup
Provides adjustable end-position limits for different carton heights, ensuring consistent sealing pressure.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S with the SAIJ100X80-40S
To replace the discontinued SIJ100X80-40S, order the exact direct replacement SAIJ100X80-40S, which preserves the 100mm bore, 80mm nominal stroke, 40mm adjust window, G1/2 port, and M20x1.5 rod thread. Choose the 40mm adjust window if your end-position needs on-site tuning between 40mm and 80mm. Reuse your FA, LB, or TC mounts via the ISO 15552 interface. The -S suffix ensures piston magnet compatibility for position sensing. For strokes over 300mm, verify side-load limits to prevent guide wear. Remember the stop screw is not a brake; for load holding on air loss, specify an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X80-40S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-40S FAQ
Yes, the SIJ100X80-40S is discontinued. The direct replacement is the SAIJ100X80-40S. It shares the same ISO 15552 interface, 100mm bore, 80mm stroke, 40mm adjust window, and G1/2 port, but features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 40mm on-site, giving a usable range of 40-80mm. The stop sets position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X80-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X80-40S replacement — usually within 7-8 hours.