This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX160S, 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 SI80BX160S
The AirTAC SI80 Standard Air Cylinder SI80BX160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX160S
- 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 SI80BX160S
The AirTAC SI80BX160S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 160 mm stroke. It features a SUS304 stainless steel piston rod (the -B option) for corrosion resistance, a built-in magnet (-S) for legacy CS1-B/DS1-B sensors, a G3/8 air port, and delivers 2513 N push force at 0.5 MPa. The direct replacement is the SAI80BX160S, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that a standard cylinder drifts without live air; the cushion only decelerates. For load holding, explore the SAIL or BSAI lock variants, or use an external pilot check valve.
Airtac SI80 Standard Air Cylinder SI80BX160S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX160S |
| Bore size | Ø80 mm |
| Stroke | 160 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 SAI80BX160S 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 SAI80BX160S 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 SI80BX160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×160 | 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 SI80BX160S Is Used
Heavy Material Diversion
Ideal for pushing heavy pallets or workpieces off a main conveyor line, utilising the 2513 N push force at 0.5 MPa to reliably overcome sliding friction.
Stainless Press Tooling
The SUS304 piston rod (-B option) suits washdown or mildly corrosive CNC machining environments where actuating clamps and forming tools requires high reliability.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX160S with the SAI80BX160S
To replace the discontinued SI80BX160S, order the SAI80BX160S. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the 160 mm stroke, the G3/8 port, and the -S magnet for current AirTAC switches. If sizing up or down, neighbouring bores are 63 mm (2182 N push @0.7 MPa) and 100 mm (5497 N push @0.7 MPa). The -B rod denotes SUS304 stainless steel; default is carbon steel. For load holding on air loss, the SAIL or BSAI lock variants are required, as standard cushions only decelerate. At 160 mm stroke, rod bending is minimal, but ensure adequate guide support to prevent side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX160S
- ✓ 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 SI80BX160S FAQ
Yes, the AirTAC SI80BX160S is discontinued. The direct replacement is the SAI80BX160S. It features the same ISO 15552 mounting interface, 80 mm bore, 160 mm stroke, G3/8 port, and output force, fitting existing fixtures perfectly while upgrading the piston seal.
The 80 mm bore has a G3/8 air port. The force ratings are: 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX160S replacement — usually within 7-8 hours.