This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X105S, 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 SI80X105S
The AirTAC SI80 Standard Air Cylinder SI80X105S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 105mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X105S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X105S
- 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 SI80X105S
The AirTAC SI80X105S is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 105mm stroke. It delivers 2513N push force at 0.5MPa through a G3/8 port. The direct replacement is the SAI80X105S, matching the bore, stroke, force, port and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The SAI family adds SAIL, SAIF and BSAI lock variants the SI lacked. This -S model uses CS1-B/DS1-B sensors; no-S SKUs cannot take sensors.
Airtac SI80 Standard Air Cylinder SI80X105S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X105S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X105S |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAI80X105S 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 SAI80X105S 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 SI80X105S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SI80X105S Is Used
Press Fit Assembly
Drives bearings into housings with 2513N push force, relying on adjustable 36mm cushions to prevent impact at stroke end.
Pallet Diverting
Pushes heavy pallets off a main conveyor line, utilizing the 105mm stroke and G3/8 port for rapid 30-800mm/s actuation.
Replacing the Airtac SI80 Standard Air Cylinder SI80X105S with the SAI80X105S
To replace the SI80X105S, order the SAI80X105S. Confirm the ISO 15552 mounting accessory (LB, FA, CA, TC), the G3/8 port, and the -S magnet for CS1-B/DS1-B switches. The 80mm bore yields 2513N push at 0.5MPa; sizing down to 63mm gives 1559N, while sizing up to 100mm yields 3927N. A plain cylinder drifts on air loss as cushions only decelerate; for load holding use an external rod lock, pilot check valve, or SAIL/BSAI variant. For this 105mm stroke, side-load is minimal but ensure rod alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X105S
- ✓ 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 SI80X105S FAQ
Yes, the SI80X105S is discontinued. The direct replacement is the SAI80X105S. It shares the identical ISO 15552 mounting interface, 80mm bore, 105mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The 80mm bore features a G3/8 port. It delivers 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X105S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X105S replacement — usually within 7-8 hours.