This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX220, 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 SI80BX220
The AirTAC SI80 Standard Air Cylinder SI80BX220 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 SAI80BX220, 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 → SAI80BX220
- 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 SI80BX220
The AirTAC SI80BX220 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 220 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, using a G3/8 air port and M20x1.5 rod thread. The direct replacement is the SAI80BX220, matching the bore, stroke, force, port and ISO 15552 mounting interface for existing fixtures. This specific SKU features a SUS304 stainless steel rod for corrosion resistance and lacks a magnet, so it cannot accept position sensors.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF and BSAI lock variants unavailable in the legacy SI line.
Airtac SI80 Standard Air Cylinder SI80BX220 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX220 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX220 |
| 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 SAI80BX220 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 SAI80BX220 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 SI80BX220
| 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 SI80BX220 Is Used
Stainless Rod Pressing
Ideal for repetitive clamping or light pressing tasks in washdown environments where the SUS304 rod prevents corrosion.
Heavy Diverting
Provides the 2513 N push force at 0.5 MPa needed to actuate heavy-duty diverter arms on packaging conveyors.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX220 with the SAI80BX220
To replace the discontinued SI80BX220, order the SAI80BX220. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the G3/8 port thread, and the M20x1.5 rod end. Because this SKU has no -S suffix, it lacks a magnet and cannot support CS1-B/DS1-B sensors; order a magneted SAI80X220S if position detection is needed. Sizing both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. Note that a plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. The 220 mm stroke is under the 300 mm side-load threshold, but always ensure rigid guidance to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX220
- ✓ 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 SI80BX220 FAQ
Yes, the SI80BX220 is discontinued. The direct replacement is the SAI80BX220. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 220 mm stroke, G3/8 port and SUS304 stainless rod.
This double-acting cylinder uses a G3/8 port. It 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX220
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX220 replacement — usually within 7-8 hours.