This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1070SN, 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 SI80X1070SN
The AirTAC SI80 Standard Air Cylinder SI80X1070SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1070mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1070SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1070 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1070SN
- 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 SI80X1070SN
The AirTAC SI80X1070SN is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 1070mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa through a G3/8 port. The direct replacement is the SAI80X1070SN, matching the interface, force, and mounting exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The NBR seal handles -20 to +70C, while Viton H extends this to 150C. Your -S magnet works with legacy CS1-B/DS1-B switches.
Airtac SI80 Standard Air Cylinder SI80X1070SN Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1070SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1070SN |
| Bore size | Ø80 mm |
| Stroke | 1070 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 SAI80X1070SN 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 SAI80X1070SN 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 SI80X1070SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1070 | 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 SI80X1070SN Is Used
Long-Stroke Diversion
Pushes heavy pallets across wide transfer lines using the full 1070mm extension and 2513N force.
Vertical Material Lift
Raises ~128kg payloads between floor levels, relying on external guides to manage the long rod.
Large Press Ejection
Ejects formed parts from machinery beds, using the adjustable 36mm cushions to brake at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1070SN with the SAI80X1070SN
To replace this SI with the SAI80X1070SN, verify the ISO 15552 mounting fixture, 80mm bore, 1070mm stroke, G3/8 port, and -S magnet. Sizing both ways: a 63mm bore yields 1559N push, while a 100mm bore yields 3927N at 0.5MPa. Because stroke exceeds 300mm, use an external guide to prevent rod bending and side-load wear. This plain cylinder does not hold load without air; for drop prevention use a pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1070SN
- ✓ 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 SI80X1070SN FAQ
Yes, the SI80X1070SN is discontinued. The direct replacement is the SAI80X1070SN, which shares the same ISO 15552 mounting interface, 80mm bore, 1070mm stroke, force, and G3/8 port.
It uses a G3/8 port and provides 2513N push / 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a maximum theoretical force of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1070SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1070SN replacement — usually within 7-8 hours.