This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X750-30, 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 SIJ80X750-30
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-30 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 SAIJ80X750-30, 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 → SAIJ80X750-30
- 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 SIJ80X750-30
The AirTAC SIJ80X750-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with an 80mm bore and 750mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, giving a usable extend range of 720-750mm. The direct replacement is the SAIJ80X750-30, sharing the same interface, force, and mounting.
Because the stop screw only sets the end position, it is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock or check valve for held loads. Upgrading to the SAIJ family brings an upgraded piston seal (two Y-shaped one-way elements for low start-up pressure) and lock variants like SAIL/BSAI that the SI line lacked. Note this non-magnetic SKU cannot take a switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-30 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X750-30 |
| 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 SAIJ80X750-30 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 SAIJ80X750-30 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 SIJ80X750-30
| 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 SIJ80X750-30 Is Used
Variable Press Tooling
Trimming the extend stroke by up to 30mm on-site allows operators to tune press depth for different material thicknesses without changing the entire cylinder.
Adjustable Transfer Diverter
A 720-750mm extend range lets maintenance teams fine-tune the exact diverter gate position to match varying product widths on the line.
Custom Packaging Stops
External stop screw adjustment permits quick changes to the pusher end position for different carton sizes, ensuring precise placement without re-engineering.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X750-30 with the SAIJ80X750-30
To replace the discontinued SIJ80X750-30, order the direct replacement SAIJ80X750-30, keeping the 80mm bore, 750mm stroke, and 30mm adjust window. Choose the 30mm adjust window if you need to fine-tune the extend end position by up to 30mm on-site. Mounting is handled via standard ISO 15552 interface dimensions using FA, LB, or TC brackets. This SKU lacks the -S magnet and cannot support a magnetic switch. For the 750mm stroke, use external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X750-30
- ✓ 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 SIJ80X750-30 FAQ
Yes, the SIJ80X750-30 is discontinued. The direct replacement is the SAIJ80X750-30, which shares the same ISO 15552 interface, 80mm bore, 750mm stroke, 30mm adjust window, and G3/8 port. The SAIJ also features an upgraded piston seal.
The external stop screw allows trimming the extend stroke by up to 30mm on-site (usable range 720-750mm). The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X750-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X750-30 replacement — usually within 7-8 hours.