This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X225-75S, 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 SIJ80X225-75S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X225-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X225-75S
- 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 SIJ80X225-75S
The AirTAC SIJ80X225-75S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable 150-225 mm window (the 225 mm nominal is the maximum). The direct replacement is the SAIJ80X225-75S, retaining the same interface, force, and mounting.
The SAIJ upgrade utilizes an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a lock; loads drift without live air, so use an external rod lock or SAIL/BSAI variant for holding. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-75S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X225-75S |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAIJ80X225-75S 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 SAIJ80X225-75S 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 SIJ80X225-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SIJ80X225-75S Is Used
Press Fit Tuning
Allows operators to fine-tune the 75 mm extend window on-site to dial in exact press-fit depths for bearings without swapping cylinders.
Variable Length Diverter
Adjusts the extend stroke on packaging lines to deflect varying carton sizes precisely, ensuring positive contact without repositioning mounts.
Adjustable Pallet Stop
Sets custom end-stop positions for different pallet footprints on demand, using the external screw to shorten the extend stroke safely.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-75S with the SAIJ80X225-75S
To replace the discontinued SIJ80X225-75S, order the exact direct replacement SAIJ80X225-75S. The 75 mm adjust window is ideal for field-tuning the extend end position without machining. Mounting interfaces (Basic, FA, LB, TC) reuse existing ISO 15552 fixtures. The -S magnet enables position sensing. For stroke lengths >=300 mm, verify guide alignment to prevent side-load wear on the seals.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X225-75S
- ✓ 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 SIJ80X225-75S FAQ
Yes, the SIJ80X225-75S is discontinued. The direct replacement is the SAIJ80X225-75S. The SAIJ features an upgraded piston seal for longer life.
The external stop screw trims the extend stroke by up to 75 mm on-site (usable 150-225 mm). The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X225-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X225-75S replacement — usually within 7-8 hours.