This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X750-75, 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 SIJ80X750-75
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 750mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X750-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X750-75
- 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 SIJ80X750-75
The AirTAC SIJ80X750-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 750 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 675-750 mm window. The 80 mm bore uses a G3/8 port, a 25 mm rod with an M20x1.5 thread, and 36 mm adjustable air cushions.
The direct replacement is the SAIJ80X750-75, matching the ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a -S magnet and cannot take a sensor switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-75 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X750-75 |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80X750-75 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 SAIJ80X750-75 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 SIJ80X750-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SIJ80X750-75 Is Used
Variable-Length Pressing
Adjusting the 75 mm stop screw on-site allows a press to hit varying material thicknesses without re-mounting the actuator.
Adjustable Transfer Pusher
Trimming the extend stroke lets a transfer pusher handle different box sizes on a single line within the 675-750 mm window.
Modular Diverter Arm
Field-tuning the end position accommodates changing lane widths in a sorting system without swapping the cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-75 with the SAIJ80X750-75
To replace the discontinued SIJ80X750-75, order the SAIJ80X750-75 direct; it preserves the 75 mm adjust window, 750 mm max stroke, G3/8 port, and FA/LB/TC mountings. Choose the 75 mm adjust window if your end-position tuning requires a wide 675-750 mm extend range. Because this SKU has no -S suffix, it cannot accept a magnetic switch for sensing. At 750 mm stroke, mind side-load and rod-bending forces; use external guides to prevent premature wear. The external stop sets end position but is not a lock; for load holding without live air, use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X750-75
- ✓ 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 SIJ80X750-75 FAQ
Yes, the SIJ80X750-75 is discontinued. The direct replacement is the SAIJ80X750-75. It shares the same ISO 15552 interface, 80 mm bore, 750 mm stroke, 75 mm adjust window, G3/8 port, and mounting options. The SAIJ also upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
The external stop screw provides a 75 mm adjust window, making the usable extend stroke 675-750 mm. The stop sets end position and is not a load lock; for load holding use an external rod lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X750-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X750-75 replacement — usually within 7-8 hours.