This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X80-30S, 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 SIJ80X80-30S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X80-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X80-30S
- 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 SIJ80X80-30S
The AirTAC SIJ80X80-30S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ80X80-30S. Its external stop screw trims the extend stroke by up to 30 mm on-site, yielding a usable 50-80 mm extend window from the 80 mm nominal maximum. The stop sets the end position and is not a load lock.
The SAIJ direct retains the exact ISO 15552 mounting interface, force, and adjust window, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. For load holding without live air, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-30S |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAIJ80X80-30S 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 SAIJ80X80-30S 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 SIJ80X80-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30S Is Used
Diverter Gate Positioning
Tuning the extend stroke by up to 30 mm on-site allows precise diverter gate angles without machining custom spacers, accommodating varying product sizes.
Variable Length Stopper Arms
Adjustable end-positioning lets operators quickly shorten the extend stroke from 80 mm down to 50 mm to handle different package widths on a single line.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-30S with the SAIJ80X80-30S
Replace the discontinued SIJ80X80-30S directly with the SAIJ80X80-30S, matching the 80 mm bore, 80 mm nominal stroke, 30 mm adjust window, G3/8 port, and -S magnet. Choose the 30 mm adjust window when you need on-site extend stroke tuning between 50 and 80 mm. Mounting options include Basic, FA, LB, and TC. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding. The external stop screw sets end position but does not lock the load; for held loads, specify an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X80-30S
- ✓ 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 SIJ80X80-30S FAQ
Yes, the SIJ80X80-30S is discontinued. The direct replacement is the SAIJ80X80-30S, offering the same ISO 15552 interface, 80 mm bore, 80 mm stroke, 30 mm adjust window, G3/8 port, and mounting options. The SAIJ upgrade features an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life.
The external stop screw allows you to trim the extend stroke by up to 30 mm on-site, giving a usable extend range of 50-80 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X80-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X80-30S replacement — usually within 7-8 hours.