This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX230S, 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 SI100BX230S
The AirTAC Airtac SI100 Standard Cylinder SI100BX230S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 230mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX230S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX230S
- 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 SI100BX230S
The AirTAC SI100BX230S is a discontinued double-acting ISO 15552 profile cylinder featuring a 100mm bore, 230mm stroke, and a SUS304 stainless steel rod. Delivering 3927 N push and 3681 N pull at 0.5 MPa via its G1/2 port, it is replaced by the SAI100BX230S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, and port size, fitting existing fixtures perfectly.
The SAI100BX230S features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI's -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI100 Standard Cylinder SI100BX230S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX230S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX230S |
| Bore size | Ø100 mm |
| Stroke | 230 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 SAI100BX230S 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 SAI100BX230S 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 SI100BX230S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×230 | 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 SI100BX230S Is Used
Heavy-Duty Pressing
Applies up to 5497 N at 0.7 MPa for seating bearings or forming components, utilizing the SUS304 rod in washdown environments.
Pallet Diversion
Provides robust 230mm stroke actuation to shift heavy pallets onto secondary packaging lines, with adjustable cushions absorbing kinetic energy.
Replacing the Airtac SI100 Standard Cylinder SI100BX230S with the SAI100BX230S
To replace the SI100BX230S, order the SAI100BX230S and verify your ISO 15552 mounting interface, G1/2 port, and M20x1.5 rod thread. The -B rod is SUS304 stainless steel, and the -S magnet supports legacy CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Sizing both ways: a neighbouring 80mm bore yields 2513 N push, while a 125mm bore yields 6136 N at 0.5 MPa. For load holding, note a plain cylinder drifts on air loss—the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 230mm stroke, guide external rods to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX230S
- ✓ 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 SI100BX230S FAQ
Yes, the SI100BX230S is discontinued. The direct replacement is the SAI100BX230S. It shares the exact ISO 15552 mounting interface, 100mm bore, 230mm stroke, force, G1/2 port, and SUS304 rod, fitting your existing fixtures seamlessly.
It features a G1/2 port and provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. The speed range is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX230S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX230S replacement — usually within 7-8 hours.