This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX80S, 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 SI100 Standard Cylinder SI100BX80S
The AirTAC Airtac SI100 Standard Cylinder SI100BX80S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX80S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX80S
- 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 SI100 Standard Cylinder SI100BX80S
The AirTAC SI100BX80S is a discontinued double-acting ISO 15552 profile cylinder featuring a 100mm bore, 80mm stroke, and a SUS304 stainless steel rod. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100BX80S. This direct upgrade shares the exact ISO 15552 mounting interface, G1/2 port, and M20x1.5 thread, fitting existing fixtures perfectly. The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure, and adds SAIL, SAIF, and BSAI lock variants.
The -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. Note that standard cylinders drift without live air; use an external rod lock or SAIL/BSAI variant for load holding.
Airtac SI100 Standard Cylinder SI100BX80S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX80S |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 SAI100BX80S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100BX80S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100BX80S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SI100 Standard Cylinder SI100BX80S Is Used
Heavy Press Clamping
Secures heavy metal workpieces in machining fixtures, utilizing the 3927 N push force at 0.5 MPa to prevent movement during milling or drilling operations.
Pallet Diverting
Actuates heavy-duty routing gates on automated assembly lines, where the 200 kg vertical lift capacity and 80mm stroke provide robust and reliable payload redirection.
Packaging Lifts
Raises bulk packaged goods between conveyor tiers, relying on the SUS304 stainless rod for corrosion resistance in washdown or humid distribution center environments.
Replacing the Airtac SI100 Standard Cylinder SI100BX80S with the SAI100BX80S
To replace the SI100BX80S, order the SAI100BX80S, confirming the ISO 15552 interface, 100mm bore, 80mm stroke, G1/2 port, and SUS304 rod. The direct SAI keeps the 3927 N push force at 0.5 MPa. If downsizing, a 80mm bore yields 2513 N push; if upsizing, a 125mm bore provides 6136 N. Remember, a plain cylinder drifts without air; for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. The built-in magnet supports legacy CS1-B/DS1-B switches, and the SAI family adds SAIF self-valve options (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX80S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100BX80S FAQ
Yes, the AirTAC SI100BX80S is discontinued. The direct replacement is the SAI100BX80S. It is dimensionally interchangeable per ISO 15552, maintaining the same 100mm bore, 80mm stroke, G1/2 port, and mounting interface, so it drops directly into existing fixtures.
This double-acting cylinder features a G1/2 air port and an M20x1.5 rod thread. Theoretical forces are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a maximum force of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX80S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX80S replacement — usually within 7-8 hours.