This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X313S, 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 SI80X313S
The AirTAC SI80 Standard Air Cylinder SI80X313S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 313mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X313S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke313 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X313S
- 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 SI80X313S
The AirTAC SI80X313S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel. It delivers 2513 N push force at 0.5 MPa through its G3/8 port. The direct replacement is the SAI80X313S, matching the 80 mm bore, 313 mm stroke, 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 and long life. It also adds SAIL, SAIF, and BSAI lock variants the SI lacked. The -S suffix means a piston magnet for CS1-B/DS1-B sensors; SAI uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80X313S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X313S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X313S |
| Bore size | Ø80 mm |
| Stroke | 313 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 SAI80X313S 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 SAI80X313S 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 SI80X313S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×313 | 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 SI80X313S Is Used
Pallet Diversion
Routes heavy pallets on a packaging line using the 2513 N push force at 0.5 MPa to reliably push loads onto parallel conveyors.
Press Ejection
Ejects formed metal parts from a press fixture, utilizing the 313 mm stroke and adjustable 36 mm air cushions to decelerate at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X313S with the SAI80X313S
To replace the SI80X313S, order the SAI80X313S. Verify the ISO 15552 mounting interface, G3/8 port, M20x1.5 rod thread, and the -S magnet. If sizing up or down, adjacent bores are 63 mm (1559 N push @0.5) and 100 mm (3927 N push @0.5). A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 313 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X313S
- ✓ 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 SI80X313S FAQ
Yes, the SI80X313S is discontinued. The direct replacement is the SAI80X313S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 80 mm bore, 313 mm stroke, force, G3/8 port, and mounting accessories.
The 80 mm bore operates at 30-800 mm/s. Force ratings are: 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 max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X313S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X313S replacement — usually within 7-8 hours.