This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X450-10S, 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 SIJ80X450-10S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 450mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X450-10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X450-10S
- 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 SIJ80X450-10S
The AirTAC SIJ80X450-10S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the direct replacement SAIJ80X450-10S. It features an 80mm bore, G3/8 port, and a 450mm nominal stroke that an external stop screw can trim by up to 10mm on-site, yielding a usable extend range of 440-450mm. The stop sets the end position and is not a load lock; without live air the piston drifts.
The SAIJ successor reuses the identical ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches. Because the 450mm stroke invites rod bending, external guides are advised to manage side loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-10S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X450-10S |
| Bore size | Ø80 mm |
| Stroke | 450 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 SAIJ80X450-10S 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 SAIJ80X450-10S 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 SIJ80X450-10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×450 | 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 SIJ80X450-10S Is Used
Press Fit Micro-Adjustment
Trimming the extend stroke by up to 10mm on-site allows operators to fine-tune a press fit operation without physically shimming the machine, ensuring precise end-of-stroke positioning.
Divertor End-Stop Tuning
A 440-450mm extend range provides the exact reach needed to meet varying product widths on a divertor, with the external screw offering rapid field calibration.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X450-10S with the SAIJ80X450-10S
To replace the discontinued SIJ80X450-10S, order the direct replacement SAIJ80X450-10S, which preserves the 80mm bore, 450mm stroke, 10mm adjust window, G3/8 port, and FA/LB/TC mountings. Choose the 10mm adjust window if you only need micro-trim capability for end-position tuning rather than a large stroke reduction. The -S suffix confirms the piston magnet is present for switch sensing. Because the 450mm stroke exceeds 300mm, account for rod bending and provide external guides to mitigate side-load wear. Remember the adjust screw sets end position but does not lock the load; for held loads use an external rod lock or the SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X450-10S
- ✓ 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 SIJ80X450-10S FAQ
Yes, the SIJ80X450-10S is discontinued. The direct replacement is the SAIJ80X450-10S, which shares the same ISO 15552 interface, 80mm bore, 450mm stroke, 10mm adjust window, and G3/8 port. The SAIJ family also features an upgraded piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 10mm on-site, giving a usable range of 440-450mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X450-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X450-10S replacement — usually within 7-8 hours.