This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX80SH, 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 SI80BX80SH
The AirTAC SI80 Standard Air Cylinder SI80BX80SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX80SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX80SH
- 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 SI80BX80SH
The AirTAC SI80BX80SH is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 80 mm stroke. It features a SUS304 stainless piston rod (-B), a high-temp Viton H seal (0-150 C), and a built-in magnet (-S) for CS1-B/DS1-B sensors. Delivering 2513 N push at 0.5 MPa via its G3/8 port, the direct successor is the SAI80BX80SH.
The SAI80BX80SH maintains the same ISO 15552 mounting interface, bore, stroke, and force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life.
Airtac SI80 Standard Air Cylinder SI80BX80SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX80SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX80SH |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAI80BX80SH 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 SAI80BX80SH 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 SI80BX80SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 SI80BX80SH Is Used
Stainless Forming
Leverages the SUS304 rod and 2513 N thrust for robust actuation in washdown or corrosive metal-forming environments.
High-Tact Transfer
Executes rapid 80 mm part-shuttle movements at 30-800 mm/s, utilizing the adjustable 36 mm cushions to halt smoothly.
Hot-End Clamping
Uses the Viton H seal to maintain reliable 4523 N clamping force at 0.9 MPa in ambient temperatures up to 150 C.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX80SH with the SAI80BX80SH
To replace the SI80BX80SH, order the SAI80BX80SH. Verify the ISO 15552 mounting interface, 80 mm stroke, G3/8 port, and your specific -B SUS304 rod, -S magnet, and -H Viton seal options. The SAI family also introduces lock variants the SI lacked: SAIL (air-released lock) and BSAI (clamp-lock). Note that a plain cylinder drifts on air loss; the cushion only decelerates, so use a lock variant or pilot check valve for held loads. If downsizing, a 63 mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100 mm bore provides 3927 N.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX80SH
- ✓ 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 SI80BX80SH FAQ
Yes, the SI80BX80SH is discontinued. The direct replacement is the SAI80BX80SH, which shares the identical ISO 15552 mounting interface, 80 mm bore, 80 mm stroke, 513 kgf max force, and G3/8 port.
This double-acting cylinder has a G3/8 air port. It delivers 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 of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX80SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX80SH replacement — usually within 7-8 hours.