This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX30, 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 SI80BX30
The AirTAC SI80 Standard Air Cylinder SI80BX30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 30mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke30 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX30
- 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 SI80BX30
The AirTAC SI80BX30 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 30 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80BX30, which shares the same interface, bore, stroke, force and mounts.
This SKU features a SUS304 stainless steel rod for corrosion resistance but lacks a magnet, so it cannot accept position switches. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI80 Standard Air Cylinder SI80BX30 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX30 |
| Bore size | Ø80 mm |
| Stroke | 30 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 SAI80BX30 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 SAI80BX30 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 SI80BX30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×30 | 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 SI80BX30 Is Used
Short-Stroke Clamping
Ideal for holding heavy castings during machining, using the 2513 N push force across a compact 30 mm travel distance.
Product Diversion
Deploys a heavy gate or deflector plate on a packaging line, benefiting from the SUS304 rod in washdown environments.
Pallet Stops
Acts as a robust pneumatic stop for loaded pallets, reliably halting weights up to the 128 kg vertical lift threshold.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX30 with the SAI80BX30
To replace the SI80BX30, order the SAI80BX30. Confirm the ISO 15552 mounting interface, G3/8 port, M20x1.5 rod thread, and your specific mounting accessory (LB, FA, CA, TC). Because this SKU has no -S magnet, it cannot support CS1-B/DS1-B sensors; choose an -S version if sensing is needed. The 80 mm bore yields 2513 N push at 0.5 MPa; step down to a 63 mm bore (1559 N) if lower force suffices, or up to 100 mm (3927 N) for more power. A plain cylinder drifts on air loss, so for load holding use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX30
- ✓ 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 SI80BX30 FAQ
Yes, the SI80BX30 is discontinued. The direct replacement is the SAI80BX30. It is dimensionally interchangeable per ISO 15552, retaining the exact same 80 mm bore, 30 mm stroke, 2513 N force, G3/8 port, and mounting interface.
This 80 mm bore cylinder uses a G3/8 air port. The thrust 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 maximum of 513 kgf at 1.0 MPa.
Request a Quote for the SAI80BX30
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX30 replacement — usually within 7-8 hours.