This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X80-75S, 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 SIJ80X80-75S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-75S 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 SAIJ80X80-75S, 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 → SAIJ80X80-75S
- 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 SIJ80X80-75S
The AirTAC SIJ80X80-75S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a 80mm bore and a G3/8 port. An external stop screw allows you to trim the extend stroke by up to 75mm on-site, yielding a usable extend range of 5-80mm. The stop screw sets the end position but is not a load lock; the piston will drift on air loss. This SIJ model is discontinued; the direct replacement is the SAIJ80X80-75S, retaining the same interface, force, and mounting.
The SAIJ upgrade utilizes an upgraded two Y-shaped one-way piston seal for low start-up pressure, and the SAI family introduces SAIL and BSAI lock variants absent in the SI line. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-75S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-75S |
| 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 SAIJ80X80-75S 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 SAIJ80X80-75S 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 SIJ80X80-75S
| 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 SIJ80X80-75S Is Used
Divergent Part Pushing
Adjusting the extend stroke on-site by up to 75mm to push different width parts to a fixture without swapping cylinders.
Variable Length Diverter
Tuning a 5-80mm extend stroke to act as a diverter arm for varying package sizes on a packaging line.
Adjustable Stop Positioning
Setting a precise external mechanical stop for pallets, allowing rapid 75mm repositioning for different pallet depths.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-75S with the SAIJ80X80-75S
To replace the discontinued SIJ80X80-75S, order the direct replacement SAIJ80X80-75S, keeping the 80mm stroke, 75mm adjust window, and -S magnet. Choose the 75mm adjust window when you need precise field tuning of the extend stroke. Mounting options include FA, LB, and TC brackets. For strokes >=300mm, verify side-load limits to prevent guide wear. The external stop sets end position only; for load holding without live air, use an external rod lock or the SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X80-75S
- ✓ 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 SIJ80X80-75S FAQ
Yes, the SIJ80X80-75S is discontinued. The direct replacement is the SAIJ80X80-75S, sharing the same ISO 15552 interface, 80mm bore, 75mm adjust window, G3/8 port, and mounting.
The 75mm adjust window allows trimming the 80mm extend stroke down to 5mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X80-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X80-75S replacement — usually within 7-8 hours.