This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX10S, 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 SI80BX10S
The AirTAC SI80 Standard Air Cylinder SI80BX10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 10mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke10 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX10S
- 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 SI80BX10S
The AirTAC SI80BX10S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 2513 N push force at 0.5 MPa. This specific unit features a SUS304 stainless piston rod (-B) and a 10 mm stroke. AirTAC replaced the SI family with the SAI80BX10S, a direct upgrade retaining the exact G3/8 port, M20x1.5 thread, and ISO 15552 mounting dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The -S magnet works with legacy CS1-B/DS1-B sensors, and a Viton H seal option expands the temperature range to 0-150 C.
Airtac SI80 Standard Air Cylinder SI80BX10S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX10S |
| Bore size | Ø80 mm |
| Stroke | 10 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 SAI80BX10S 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 SAI80BX10S 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 SI80BX10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×10 | 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 SI80BX10S Is Used
Short-Stroke Clamping
Ideal for high-force 2513 N clamping tasks in machining fixtures where a 10 mm stroke securely holds stainless or aluminum workpieces without deflection.
Transfer Line Stops
Provides robust stopping power for heavy pallets on assembly conveyors, using the SUS304 rod to resist moisture and corrosion in washdown zones.
Pallet Positioning
Delivers precise 10 mm indexing pushes to align heavy freight pallets, leveraging the 128 kg vertical lift capacity for reliable vertical positioning.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX10S with the SAI80BX10S
To replace the SI80BX10S, order the SAI80BX10S; it drops directly into existing ISO 15552 fixtures with identical 80 mm bore, 10 mm stroke, and G3/8 port. Confirm your mounting accessory (LB, FA, TC, etc.) and thread type (PT/G/NPT). The -B rod is SUS304 stainless steel, and the -S magnet enables legacy CS1-B/DS1-B switches. Sizing both ways: the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Remember, a plain cylinder drifts without live air; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. The cushion only decelerates near stroke end.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX10S
- ✓ 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 SI80BX10S FAQ
Yes, the SI80BX10S is discontinued. The direct replacement is the SAI80BX10S. It shares the exact ISO 15552 mounting interface, 80 mm bore, 10 mm stroke, G3/8 port, and output force, fitting existing fixtures perfectly while upgrading the piston seal.
The 80 mm bore uses a G3/8 port. 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; with a theoretical max of 513 kgf at 1.0 MPa. It operates at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX10S replacement — usually within 7-8 hours.