This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X300SCA, 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 SI80X300SCA
The AirTAC SI80 Standard Air Cylinder SI80X300SCA 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 SAI80X300SCA, 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 → SAI80X300SCA
- 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 SI80X300SCA
The AirTAC SI80X300SCA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 300 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X300SCA, matching the interface, CA clevis mount, stroke and force.
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. This -S SKU uses CS1-B/DS1-B sensors; no-S SKUs take none.
Airtac SI80 Standard Air Cylinder SI80X300SCA Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X300SCA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X300SCA |
| 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 SAI80X300SCA 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 SAI80X300SCA 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 SI80X300SCA
| 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 SI80X300SCA Is Used
Pallet Diversion
Uses the 2513 N push force at 0.5 MPa to push heavy pallets onto parallel conveyor lines without stalling.
Press Ejection
Ejects formed metal parts from a press bed, relying on the 36 mm adjustable air cushions to decelerate the rod.
Replacing the Airtac SI80 Standard Air Cylinder SI80X300SCA with the SAI80X300SCA
To replace the SI80X300SCA, order the SAI80X300SCA. Verify the ISO 15552 CA clevis mount, 300 mm stroke, G3/8 port and the -S magnet for CS1-B/DS1-B switches. If sizing up or down, neighbouring bores are 63 mm (1559 N [email protected]) and 100 mm (3927 N [email protected]). Note that 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. At 300 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X300SCA
- ✓ 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 SI80X300SCA FAQ
Yes, the SI80X300SCA is discontinued. The direct replacement is the SAI80X300SCA. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 300 mm stroke, G3/8 port, CA clevis mount and output force.
The 80 mm bore uses a G3/8 port. Force output is 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 SAI80X300SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X300SCA replacement — usually within 7-8 hours.