This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X300SH, 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 SI80X300SH
The AirTAC SI80 Standard Air Cylinder SI80X300SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X300SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X300SH
- 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 SI80X300SH
The AirTAC SI80X300SH is a discontinued double-acting ISO 15552 profile cylinder with a 300 mm stroke and 80 mm bore. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X300SH, matching the exact ISO 15552 mounting interface, stroke, force, and port size.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The H seal option allows 0-150 C operation, and the S magnet supports CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X300SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X300SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X300SH |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAI80X300SH 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 SAI80X300SH 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 SI80X300SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SI80X300SH Is Used
Pallet Diversion
Pushes heavy pallets onto secondary packaging lines using the 2513 N push force at 0.5 MPa, while the 300 mm stroke clears the main conveyor width.
Carton Stacking
Actuates a 300 mm reach arm to stack heavy corrugated cartons, relying on the H Viton seal to withstand high-temperature end-of-line environments.
Replacing the Airtac SI80 Standard Air Cylinder SI80X300SH with the SAI80X300SH
To replace the SI80X300SH, order the SAI80X300SH. Confirm the ISO 15552 mounting interface, G3/8 port, M20x1.5 rod thread, and the -S magnet for CS1-B/DS1-B switches. The SAI family also adds SAIL, SAIF, and BSAI variants. For sizing, a 63 mm bore gives 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or SAIL/BSAI variant. Because the 300 mm stroke invites rod bending, use an external guide to prevent side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X300SH
- ✓ 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 SI80X300SH FAQ
Yes, the SI80X300SH is discontinued. The direct replacement is the SAI80X300SH. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 300 mm stroke, 513 kgf max force, and G3/8 port, so it fits existing fixtures perfectly.
This double-acting cylinder uses a G3/8 air port. It provides 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 force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X300SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X300SH replacement — usually within 7-8 hours.