This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX115, 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 SI80BX115
The AirTAC SI80 Standard Air Cylinder SI80BX115 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 115mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX115, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX115
- 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 SI80BX115
The AirTAC SI80BX115 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 115 mm stroke. Featuring a SUS304 stainless steel rod and G3/8 port, it delivers 2513 N push force at 0.5 MPa. The direct replacement is the SAI80BX115, matching the bore, stroke, force, port and ISO 15552 mounting interface exactly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this non-magnetic SKU cannot accept a sensor, and plain cylinders require an external rod lock or pilot check valve to hold loads, as cushions only decelerate.
Airtac SI80 Standard Air Cylinder SI80BX115 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX115 |
| Bore size | Ø80 mm |
| Stroke | 115 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 SAI80BX115 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 SAI80BX115 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 SI80BX115
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×115 | 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 SI80BX115 Is Used
Stainless Rod Diverters
Ideal for diverting heavy packages on washdown conveyor lines where the SUS304 rod resists moisture and corrosion over repeated cycles.
Mid-Tonnage Pressing
Delivers 2513 N of push force at 0.5 MPa for seating bearings or light assembly pressing tasks within automated fixture machinery.
Pallet Lift Gates
Provides robust vertical actuation for palletizing access gates, safely handling loads around the 128 kg vertical lift threshold.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX115 with the SAI80BX115
To replace the discontinued SI80BX115, order the SAI80BX115. Verify the ISO 15552 mounting interface, 115 mm stroke, G3/8 port, and SUS304 stainless rod. Because this SKU lacks a magnet (-S), it cannot support position sensing; if switches are needed, select a magnet-equipped SAI80B...S model and use current AirTAC sensors. The 80 mm bore yields 2513 N push at 0.5 MPa; sizing down to a 63 mm bore gives 1559 N, while sizing up to 100 mm provides 3927 N. For load holding on air loss, add an external pilot check valve or rod lock, as the adjustable cushions only decelerate. The SAI family also offers SAIL and BSAI lock variants if integrated holding is required.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX115
- ✓ 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 SI80BX115 FAQ
Yes, the AirTAC SI80BX115 is discontinued. The direct replacement is the SAI80BX115. It is dimensionally interchangeable per ISO 15552, retaining the identical 80 mm bore, 115 mm stroke, G3/8 port, SUS304 rod, and mounting interface to fit existing fixtures directly.
This double-acting cylinder uses a G3/8 air port. At 0.5 MPa it provides 2513 N push and 2268 N pull force. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX115 replacement — usually within 7-8 hours.