This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX950, 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 SI80BX950
The AirTAC SI80 Standard Air Cylinder SI80BX950 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 950mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX950, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX950
- 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 SI80BX950
The AirTAC SI80BX950 is a discontinued double-acting ISO 15552 profile cylinder featuring a SUS304 stainless steel piston rod and a 950 mm stroke. It delivers 2513 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI80BX950, a direct upgrade retaining the same 80 mm bore, stroke, G3/8 port, output force and ISO 15552 mounting interface.
The SAI successor introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this SKU lacks a magnet and cannot accept a sensor; the legacy SI family used CS1-B/DS1-B switches, while the SAI family uses current AirTAC sensors.
Airtac SI80 Standard Air Cylinder SI80BX950 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX950 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX950 |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAI80BX950 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 SAI80BX950 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 SI80BX950
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×950 | 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 SI80BX950 Is Used
Stainless Pusher
Acts as a washdown-compatible goods pusher in distribution hubs, leveraging the SUS304 rod for corrosion resistance.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX950 with the SAI80BX950
To replace the SI80BX950, order the SAI80BX950. Confirm the ISO 15552 mounting interface, the 80 mm bore, the 950 mm stroke, the G3/8 port, and your mounting accessory. Because this SKU lacks a magnet (-S), it cannot support a magnetic switch. The stainless SUS304 rod provides corrosion resistance versus the standard carbon steel option. Sizing both ways: if you need less force, a 63 mm bore yields 1559 N push at 0.5 MPa; for more power, a 100 mm bore yields 3927 N. A plain cylinder drifts without live air—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 950 mm, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX950
- ✓ 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 SI80BX950 FAQ
Yes, the SI80BX950 is discontinued. The direct replacement is the SAI80BX950. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 950 mm stroke, 2513 N force, G3/8 port and mounting fixtures.
The bore is 80 mm with a G3/8 air port. 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 SAI80BX950
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX950 replacement — usually within 7-8 hours.