This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X150SFA, 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 SI80X150SFA
The AirTAC SI80 Standard Air Cylinder SI80X150SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X150SFA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X150SFA
- 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 SI80X150SFA
The AirTAC SI80X150SFA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 150 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80X150SFA, a direct upgrade sharing the exact same interface, force, and FA flange mounting.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces SAIL and BSAI lock variants absent in the SI line, and the included -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X150SFA Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X150SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X150SFA |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAI80X150SFA 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 SAI80X150SFA 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 SI80X150SFA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SI80X150SFA Is Used
Pallet Diverting
Actuates heavy-duty lane diverters, utilizing the 128 kg vertical lift capacity to shift goods.
Vacuum Lifter Actuation
Raises and lowers large packaging suction frames with steady 30-800 mm/s control speeds.
Replacing the Airtac SI80 Standard Air Cylinder SI80X150SFA with the SAI80X150SFA
To replace the SI80X150SFA, order the SAI80X150SFA. Confirm the ISO 15552 mounting dimensions, 80 mm bore, 150 mm stroke, G3/8 port, and the FA flange accessory. The -S suffix means a piston magnet is present for CS1-B/DS1-B switches. If you need more force, the 100 mm bore yields 3927 N at 0.5 MPa; if less is required, the 63 mm bore provides 1559 N. Remember that a standard cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or select the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X150SFA
- ✓ 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 SI80X150SFA FAQ
Yes, the SI80X150SFA is discontinued. The direct replacement is the SAI80X150SFA. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 150 mm stroke, G3/8 port, and FA flange mounting.
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 maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X150SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X150SFA replacement — usually within 7-8 hours.