This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X260, 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 SI80X260
The AirTAC SI80 Standard Air Cylinder SI80X260 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 260mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X260, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X260
- 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 SI80X260
The AirTAC SI80X260 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 260mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, peaking at 513kgf. AirTAC replaced this EOL unit with the SAI80X260, a direct sharing the same G3/8 port, M20x1.5 rod thread, and mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Since this specific SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise limits to 150C.
Airtac SI80 Standard Air Cylinder SI80X260 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X260 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X260 |
| Bore size | Ø80 mm |
| Stroke | 260 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 SAI80X260 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 SAI80X260 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 SI80X260
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×260 | 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 SI80X260 Is Used
Pallet Diversion
Provides robust 2513N push at 0.5MPa to deflect heavy pallets onto secondary packaging lines without bounce.
Press Ejection
Uses the 260mm stroke to positively eject formed metal components from a press bed, clearing the die area safely.
Replacing the Airtac SI80 Standard Air Cylinder SI80X260 with the SAI80X260
To replace the SI80X260, order the SAI80X260. It drops into existing fixtures per ISO 15552 interface dimensions, matching the 80mm bore, 260mm stroke, G3/8 port, and 36mm cushions. Because this SKU has no -S suffix, it lacks a magnet and cannot host position sensors; order an -S variant if you need CS1-B/DS1-B switches. The 80mm bore yields 2513N push at 0.5MPa; sizing down to 63mm drops thrust to 1559N, while sizing up to 100mm increases it to 3927N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants. At 260mm stroke, guide external rods to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X260
- ✓ 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 SI80X260 FAQ
Yes, the AirTAC SI80X260 is discontinued. The direct replacement is the SAI80X260. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 260mm stroke, G3/8 port, and mounting accessories.
This double-acting cylinder uses a G3/8 port. It generates 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and 4523N push at 0.9MPa. The theoretical maximum force is 513kgf at 1.0MPa.
Request a Quote for the SAI80X260
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X260 replacement — usually within 7-8 hours.