This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X263S, 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 SI80X263S
The AirTAC SI80 Standard Air Cylinder SI80X263S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 263mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X263S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke263 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X263S
- 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 SI80X263S
The AirTAC SI80X263S is a discontinued double-acting ISO 15552 profile cylinder with a 263 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X263S, matching the bore, stroke, force, port and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The original -S magnet supports CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X263S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X263S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X263S |
| Bore size | Ø80 mm |
| Stroke | 263 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 SAI80X263S 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 SAI80X263S 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 SI80X263S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×263 | 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 SI80X263S Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, utilizing the 2513 N push force to shift loaded pallets smoothly.
Press Ejection
Ejects formed metal parts from hydraulic presses, relying on adjustable end cushions to decelerate the 263 mm stroke.
Replacing the Airtac SI80 Standard Air Cylinder SI80X263S with the SAI80X263S
To replace the SI80X263S, order the SAI80X263S. Confirm the ISO 15552 interface, 80 mm bore, 263 mm nonstandard stroke, G3/8 port, and mounting. Size both ways: the 63 mm bore yields 1559 N [email protected], while the 100 mm bore yields 3927 N. For this 263 mm stroke, use a guide to prevent rod bending. A plain cylinder drifts on air loss; for load holding, use the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X263S
- ✓ 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 SI80X263S FAQ
Yes, the SI80X263S is discontinued. The direct replacement is the SAI80X263S. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 263 mm stroke, force, G3/8 port and mounting.
This double-acting cylinder uses a G3/8 port. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X263S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X263S replacement — usually within 7-8 hours.