This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X300-30S, 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 SIJ80X300-30S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X300-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X300-30S
- 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 SIJ80X300-30S
The AirTAC SIJ80X300-30S 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 30 mm on-site, yielding a usable 270-300 mm extension out of the 300 mm nominal maximum.
This SIJ model is discontinued; the direct replacement is the SAIJ80X300-30S, matching the ISO 15552 mounting interface, bore, force, and port. The SAIJ upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets end position only; it is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X300-30S |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80X300-30S 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 SAIJ80X300-30S 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 SIJ80X300-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SIJ80X300-30S Is Used
Variable Press Stroke
Trimming the extend stroke by up to 30 mm on-site allows precise positioning of a press head without machining a new hard stop.
Adjustable Diverter Arm
A 270-300 mm extend window lets maintenance tune a conveyor diverter gate to match varying package sizes on the line.
Custom End-Stop Positioning
Setting the exact end position via the external screw avoids re-piping when a stacking pallet height changes slightly.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30S with the SAIJ80X300-30S
To replace the discontinued SIJ80X300-30S, order the direct replacement SAIJ80X300-30S, keeping the same 30 mm adjust window and -S magnet for legacy CS1-B/DS1-B switches. Reuse existing FA, LB, or TC ISO 15552 mounts. Because the 300 mm stroke invites rod bending, ensure external guides handle side loads. The adjust stop sets end position and does not hold loads on air loss; for load holding use SAIL, BSAI, or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X300-30S
- ✓ 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 SIJ80X300-30S FAQ
Yes, the SIJ80X300-30S is discontinued. The direct replacement is the SAIJ80X300-30S, offering the same ISO 15552 interface, 80 mm bore, 300 mm stroke, 30 mm adjust window, and G3/8 port. The SAIJ uses an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw window is 30 mm, allowing the extend stroke to be shortened from 300 mm down to 270 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X300-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X300-30S replacement — usually within 7-8 hours.