This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X330SCB, 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 SI80 Standard Air Cylinder SI80X330SCB
The AirTAC SI80 Standard Air Cylinder SI80X330SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 330mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X330SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke330 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X330SCB
- 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 SI80 Standard Air Cylinder SI80X330SCB
The AirTAC SI80X330SCB is a discontinued double-acting ISO 15552 profile cylinder with a 330 mm stroke. Generating 2513 N push and 2268 pull at 0.5 MPa, it uses a G3/8 port and a CB clevis mount. AirTAC replaced this legacy unit with the SAI80X330SCB. This current-production direct maintains the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories, fitting existing fixtures perfectly.
The SAI upgrade features a revised piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. For holding loads, note that standard cylinders drift on air loss—the cushion only decelerates—so use an external rod lock or the SAIL/BSAI lock variants.
Airtac SI80 Standard Air Cylinder SI80X330SCB Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X330SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X330SCB |
| Bore size | Ø80 mm |
| Stroke | 330 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 SAI80X330SCB 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 SAI80X330SCB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X330SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×330 | 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 SI80 Standard Air Cylinder SI80X330SCB Is Used
Press Clamping
Secures heavy sheet metal assemblies in a press line, utilizing the 2513 N push force at 0.5 MPa to hold parts firmly during stamping operations.
Pallet Diversion
Actuates a heavy-duty diverter arm on a packaging conveyor, using the 330 mm stroke to push pallets onto a secondary routing lane.
Replacing the Airtac SI80 Standard Air Cylinder SI80X330SCB with the SAI80X330SCB
To replace the SI80X330SCB, order the SAI80X330SCB. Confirm the ISO 15552 CB clevis mount, G3/8 port, 330 mm stroke and the -S magnet for CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). Sizing both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. If you need load holding on air loss, select the SAIL air-released lock or BSAI clamp-lock, as the cushion only decelerates. With a 330 mm stroke, use an external guide to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X330SCB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X330SCB FAQ
Yes, the SI80X330SCB is discontinued. The direct replacement is the SAI80X330SCB. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 330 mm stroke, 2513 N force, G3/8 port and CB mounting interface.
The bore is 80 mm with a G3/8 air port. It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X330SCB
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