This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X220, 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 SI80X220
The AirTAC SI80 Standard Air Cylinder SI80X220 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 220mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X220, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X220
- 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 SI80X220
The AirTAC SI80X220 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 220mm stroke. Delivering 2513 N push and 2268 N pull at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X220. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, output force, port size and accessories, fitting existing fixtures perfectly.
The SAI upgrade features an upgraded piston seal with two Y-shaped one-way elements for long life and low start-up pressure. This SKU lacks a magnet (-S) so it cannot take a sensor. For high heat, Viton H seals raise the temperature limit to 0-150 C.
Airtac SI80 Standard Air Cylinder SI80X220 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X220 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X220 |
| Bore size | Ø80 mm |
| Stroke | 220 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 SAI80X220 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 SAI80X220 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 SI80X220
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×220 | 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 SI80X220 Is Used
Press Clamping
Applies 2513 N of clamping force at 0.5 MPa to hold heavy sheet metal or composite panels securely during machining and pressing operations.
Pallet Diverting
Extends 220 mm to push heavy pallets off a main conveyor line, utilizing the adjustable 36 mm air cushions to decelerate the load smoothly at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X220 with the SAI80X220
To replace the SI80X220, order the SAI80X220. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 220mm stroke, and the G3/8 port. This non-magnetic SKU cannot accept CS1-B/DS1-B switches; order a magnet-equipped SAI80X220S if sensing is required. If sizing up or down, neighbouring bores are 63mm (1559 N push @0.5 MPa) and 100mm (3927 N push @0.5 MPa). A plain cylinder drifts on air loss—the 36mm cushions only decelerate. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 220mm stroke, side-load and rod-bending risks are moderate; guide the load to protect the M20x1.5 rod thread.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X220
- ✓ 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 SI80X220 FAQ
Yes, the AirTAC SI80X220 is discontinued and end-of-life. The direct replacement is the SAI80X220. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 220mm stroke, output force, G3/8 port, and mounting accessories.
The 80mm 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. Operating speed is 30-800 mm/s.
Request a Quote for the SAI80X220
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X220 replacement — usually within 7-8 hours.