This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X900-20S, 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 SIJ80X900-20S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 900mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X900-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X900-20S
- 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 SIJ80X900-20S
The AirTAC SIJ80X900-20S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. An external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 880-900mm range. The stop sets the end position but is not a load lock.
The SAIJ successor retains the ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure. Because the 900mm stroke invites rod bending, external guides are advised to manage side loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X900-20S |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAIJ80X900-20S 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 SAIJ80X900-20S 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 SIJ80X900-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SIJ80X900-20S Is Used
Press Fit Tuning
Trimming the extend stroke by up to 20mm on-site allows precise press-fit depth adjustment without machining hard stops.
Transfer Diverter
Field-tuning the 880-900mm extension lets operators dial in the exact pusher distance for varying product widths.
Pallet Positioning
The external stop screw provides a mechanical end position to consistently square pallets over a 900mm travel.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-20S with the SAIJ80X900-20S
To replace the discontinued SIJ80X900-20S, order the direct replacement SAIJ80X900-20S, which preserves the 20mm adjust window, M20x1.5 rod thread, and FA/LB/TC mount compatibility. Choose the 20mm adjust window if you need minor on-site extend tuning; for fixed stops, a standard SAI cylinder suffices. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches. For the 900mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X900-20S
- ✓ 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 SIJ80X900-20S FAQ
Yes, the SIJ80X900-20S is discontinued. The direct replacement is the SAIJ80X900-20S. It matches the 80mm bore, 900mm stroke, 20mm adjust window, G3/8 port, and ISO 15552 mounting interface.
The external stop screw allows trimming the extend stroke by up to 20mm on-site, yielding a usable 880-900mm range. The stop sets end position and does not hold loads on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X900-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X900-20S replacement — usually within 7-8 hours.