This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X480-50S, 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 SIJ80X480-50S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X480-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 480mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X480-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke480 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X480-50S
- 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 SIJ80X480-50S
The AirTAC SIJ80X480-50S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the direct replacement SAIJ80X480-50S. Its external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable 430-480 mm window from the 480 mm nominal maximum.
The SAIJ replacement 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 stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X480-50S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X480-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X480-50S |
| Bore size | Ø80 mm |
| Stroke | 480 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 SAIJ80X480-50S 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 SAIJ80X480-50S 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 SIJ80X480-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×480 | 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 SIJ80X480-50S Is Used
Variable Pitch Push Operations
Tuning the extend stroke on-site by up to 50 mm allows operators to change the push distance for varying material thicknesses without swapping the entire cylinder.
Adjustable Transfer Diverter
A 480 mm extend stroke can be dialed back to 430 mm to accommodate different pallet sizes on a transfer line, using the external stop screw to set the exact end position.
Dynamic End-Stop Positioning
Useful in warehousing actuators where the exact extend endpoint must be shifted slightly for different package profiles, leveraging the 50 mm adjustment window.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X480-50S with the SAIJ80X480-50S
To replace the discontinued SIJ80X480-50S, map directly to the SAIJ80X480-50S, keeping the 480 mm stroke, 50 mm adjust window, and -S magnet for legacy CS1-B/DS1-B switches. Choose the 50 mm adjust window if your extend stroke needs field tuning between 430 and 480 mm. Mounting options include FA, LB, and TC brackets. Because the 480 mm stroke is long, ensure external guides to prevent rod bending and side loads. For load holding without live air, select the SAIL or BSAI lock variant instead of relying on the stop screw.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X480-50S
- ✓ 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 SIJ80X480-50S FAQ
Yes, the SIJ80X480-50S is discontinued. The direct replacement is the SAIJ80X480-50S. It shares the same ISO 15552 interface, 80 mm bore, 480 mm stroke, 50 mm adjust window, G3/8 port, and mounting options, but features an upgraded piston seal.
The external stop screw offers a 50 mm adjustment window, allowing the extend stroke to be shortened from the 480 mm maximum down to 430 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X480-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X480-50S replacement — usually within 7-8 hours.