This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X262SN, 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 SI80X262SN
The AirTAC SI80 Standard Air Cylinder SI80X262SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 262mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X262SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke262 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X262SN
- 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 SI80X262SN
The AirTAC SI80X262SN is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 262 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X262SN, sharing the exact ISO 15552 mounting interface, bore, stroke, and output force. Note that 262 mm is a nonstandard stroke.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors, while the -N NBR seal handles -20 to +70 C.
Airtac SI80 Standard Air Cylinder SI80X262SN Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X262SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X262SN |
| Bore size | Ø80 mm |
| Stroke | 262 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 SAI80X262SN 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 SAI80X262SN 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 SI80X262SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×262 | 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 SI80X262SN Is Used
Mid-Tonnage Pressing
Ideal for applying steady 2513 N clamping force on machining fixtures, utilizing the 80 mm bore to hold heavy metal components securely.
Package Diversion
Drives robust routing gates on high-throughput lines, where the 262 mm stroke provides ample travel to redirect heavy pallets.
Vertical Lift Stops
Acts as a pneumatic stop in vertical material handling, safely decelerating loads up to 128 kg when paired with external guides.
Replacing the Airtac SI80 Standard Air Cylinder SI80X262SN with the SAI80X262SN
To replace the SI80X262SN, order the SAI80X262SN. Confirm the ISO 15552 interface, 80 mm bore, 262 mm stroke, G3/8 port, and mounting accessory. The SAI is a direct. If sizing alternatives, neighbouring bores (63 mm or 100 mm) shift the 0.5 MPa push force to 1559 N or 3927 N. Because 262 mm exceeds standard increments, expect a nonstandard stroke; at this length, ensure external guides to prevent rod bending and side loads. A plain cylinder drifts without live air—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X262SN
- ✓ 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 SI80X262SN FAQ
Yes, the SI80X262SN is discontinued. The direct replacement is the SAI80X262SN. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 262 mm stroke, G3/8 port, and mounting interface.
At 0.5 MPa it provides 2513 N push and 2268 N pull force. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical max is 513 kgf at 1.0 MPa. It operates at 30-800 mm/s, uses a G3/8 port, and the -N NBR seal supports -20 to +70 C.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X262SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X262SN replacement — usually within 7-8 hours.