This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX100, 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 SI80AX100
The AirTAC SI80 Standard Air Cylinder SI80AX100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX100
- 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 SI80AX100
The AirTAC SI80AX100 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 100 mm stroke. It features a SUS420J2 stainless steel piston rod and delivers 2513 N of push force at 0.5 MPa. The direct replacement is the SAI80AX100, which matches the original G3/8 port, M20x1.5 thread, and ISO 15552 mounting interface.
Because this SKU lacks a magnet, it cannot accept position sensors. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. Note that a plain cylinder drifts without live air; use a SAIL lock or external pilot check valve for load holding.
Airtac SI80 Standard Air Cylinder SI80AX100 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX100 |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAI80AX100 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 SAI80AX100 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 SI80AX100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SI80AX100 Is Used
Heavy-Duty Clamping
Secures large metal castings during CNC machining using the 2513 N push force, with the SUS420J2 rod resisting coolant corrosion.
Pallet Diverting
Actuates heavy lane diverters on packaging lines, handling the 100 mm stroke swiftly within the 30-800 mm/s speed range.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX100 with the SAI80AX100
To replace the discontinued SI80AX100, order the SAI80AX100. Verify your ISO 15552 mounting accessories (LB, FA, TC, etc.), the G3/8 air port, and the M20x1.5 rod thread. Since this specific SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, switch to a current SAI switch. Sizing both ways: the 80 mm bore yields 2513 N push at 0.5 MPa, while the neighbouring 63 mm bore offers 1559 N. For any load holding, remember the cushion only decelerates and does not brake; select the SAIL or BSAI lock variant, or add an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX100
- ✓ 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 SI80AX100 FAQ
Yes, the SI80AX100 is discontinued. The direct replacement is the SAI80AX100. It is dimensionally interchangeable per ISO 15552, retaining the exact same 80 mm bore, 100 mm stroke, 2513 N output force, G3/8 port, and mounting interface.
The G3/8 ported bore 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. It operates at 30-800 mm/s with a 36 mm adjustable air cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX100
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX100 replacement — usually within 7-8 hours.