This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X100SN, 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 SI80X100SN
The AirTAC SI80 Standard Air Cylinder SI80X100SN 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 SAI80X100SN, 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 → SAI80X100SN
- 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 SI80X100SN
The AirTAC SI80X100SN is a discontinued double-acting ISO 15552 profile cylinder featuring an 80 mm bore and 100 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80X100SN, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size for seamless fixture integration.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The NBR seal handles -20 to +70 C, while the built-in magnet supports legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X100SN Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X100SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X100SN |
| 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 SAI80X100SN 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 SAI80X100SN 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 SI80X100SN
| 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 SI80X100SN Is Used
Package Diversion
Drives heavy-duty routing gates on high-speed packaging lines, utilizing the 100 mm stroke to cleanly redirect bulky cartons without lagging.
Clamp Actuation
Secures large steel workpieces inside CNC machining centers, delivering 2513 N of firm clamping force at 0.5 MPa to prevent vibration during milling.
Pallet Stopping
Controls heavy pallet deceleration at the end of gravity roller conveyors, safely arresting loads using the adjustable 36 mm air cushions.
Replacing the Airtac SI80 Standard Air Cylinder SI80X100SN with the SAI80X100SN
To replace the SI80X100SN, order the SAI80X100SN. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/8 port thread (PT/G/NPT), and the M20x1.5 rod end. The -S magnet enables CS1-B/DS1-B switches, and the -N NBR seal suits standard temperatures. If you need more force, the 100 mm bore yields 3927 N at 0.5 MPa; if less, the 63 mm bore yields 1559 N. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The SAI family also offers the SAIF self-valve option.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X100SN
- ✓ 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 SI80X100SN FAQ
Yes, the SI80X100SN is discontinued. The direct replacement is the SAI80X100SN. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 100 mm stroke, 2513 N force, G3/8 port, and mounting interface.
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 max force is 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X100SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X100SN replacement — usually within 7-8 hours.