This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX170S, 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 SI100BX170S
The AirTAC Airtac SI100 Standard Cylinder SI100BX170S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 170mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX170S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke170 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX170S
- 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 SI100BX170S
The AirTAC SI100BX170S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 170mm stroke. It delivers 3927N push force at 0.5MPa and features a SUS304 stainless piston rod (-B) alongside a built-in magnet (-S) for CS1-B/DS1-B legacy sensors. AirTAC replaced this legacy unit with the SAI100BX170S.
The SAI100BX170S is a direct replacement matching the exact ISO 15552 mounting interface, G1/2 port, and 3927N thrust. The upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure.
Airtac SI100 Standard Cylinder SI100BX170S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX170S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX170S |
| Bore size | Ø100 mm |
| Stroke | 170 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 SAI100BX170S 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 SAI100BX170S 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 SI100BX170S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×170 | 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 SI100BX170S Is Used
Heavy Press Operations
Drives robust clamping and forming jigs where the 3927N push force at 0.5MPa is required to secure heavy metal components during machining.
Corrosive Fluid Lines
The SUS304 stainless rod (-B option) excels in washdown environments and packaging lines exposed to moisture or mild chemicals.
Replacing the Airtac SI100 Standard Cylinder SI100BX170S with the SAI100BX170S
To replace the SI100BX170S, order the SAI100BX170S and verify your ISO 15552 mounting interface, G1/2 port, and M20x1.5 rod thread. The -S magnet enables current AirTAC switches (replacing legacy CS1-B/DS1-B), while the -B SUS304 rod resists corrosion. Sizing both ways: this 100mm bore yields 3927N push at 0.5MPa; dropping to an 80mm bore gives 2513N, while increasing pressure to 0.7MPa yields 5497N. Note that plain cylinders drift on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve option.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX170S
- ✓ 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 SI100BX170S FAQ
Yes, the AirTAC SI100BX170S is discontinued. The direct replacement is the SAI100BX170S. It shares the identical ISO 15552 mounting interface, 100mm bore, 170mm stroke, G1/2 port, and output force, fitting your existing fixtures perfectly while upgrading the piston seal.
This 100mm bore cylinder features a G1/2 air port. At 0.5MPa it provides 3927N push and 3681N pull force. At 0.7MPa push is 5497N, and at 0.9MPa it is 7068N. The theoretical maximum force is 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX170S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX170S replacement — usually within 7-8 hours.