This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX200, 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 SI80AX200
The AirTAC SI80 Standard Air Cylinder SI80AX200 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX200, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX200
- 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 SI80AX200
The AirTAC SI80AX200 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 200 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, using a G3/8 air port and an M20x1.5 piston rod. The direct replacement is the SAI80AX200, which matches the original ISO 15552 mounting interface, output force, and port size exactly.
Upgrading to the SAI80AX200 brings an improved piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. The -A suffix specifies a SUS420J2 stainless steel piston rod for corrosion resistance. Because this SKU lacks a -S magnet, it cannot accept position switches.
Airtac SI80 Standard Air Cylinder SI80AX200 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX200 |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAI80AX200 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 SAI80AX200 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 SI80AX200
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SI80AX200 Is Used
Mid-Tonnage Pressing
Applies the 2513 N push force at 0.5 MPa for seating bearings, stamping light sheet metal, or clinching components in automated machining cells.
Package Diversion
Drives 200 mm stroke diverters or routing gates on packaging lines, utilizing the 80 mm bore's robust output to shift heavy cartons reliably.
Pallet Lift Stops
Acts as a heavy-duty pneumatic stop or lifting lug in material handling, where the SUS420J2 stainless rod resists moisture and warehouse humidity.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX200 with the SAI80AX200
To replace the discontinued SI80AX200, order the SAI80AX200. It is dimensionally interchangeable per ISO 15552, keeping the 80 mm bore, 200 mm stroke, G3/8 port, and M20x1.5 rod thread. Confirm your mounting accessory (LB, FA, TC, etc.) and note that this non-magnetic SKU cannot take sensors. For sizing, the 80 mm bore yields 2513 N push at 0.5 MPa; if less force is needed, a 63 mm bore offers 1559 N, while a 100 mm bore provides 3927 N. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SUS420J2 rod suits humid environments, and a Viton H seal raises operating temperature to 150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX200
- ✓ 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 SI80AX200 FAQ
Yes, the SI80AX200 is discontinued. The direct replacement is the SAI80AX200. It shares the identical ISO 15552 mounting interface, 80 mm bore, 200 mm stroke, output force, G3/8 port, and M20x1.5 rod thread, fitting existing fixtures perfectly.
The G3/8 ported 80 mm bore generates 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 36 mm adjustable cushions at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX200
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX200 replacement — usually within 7-8 hours.