This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX170, 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 SI100AX170
The AirTAC Airtac SI100 Standard Cylinder SI100AX170 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 SAI100AX170, 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 → SAI100AX170
- 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 SI100AX170
The AirTAC SI100AX170 is a discontinued double-acting ISO 15552 profile cylinder featuring a 100 mm bore and 170 mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100AX170, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and porting. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SI100AX170 variant uses a SUS420J2 stainless piston rod for corrosion resistance. As a no-S SKU, it lacks a magnet and cannot accept position sensors.
Airtac SI100 Standard Cylinder SI100AX170 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX170 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX170 |
| 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 SAI100AX170 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 SAI100AX170 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 SI100AX170
| 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 SI100AX170 Is Used
Heavy-Duty Pressing
Applies 5497 N at 0.7 MPa for seating bearings and forming light-gauge components in automated machinery.
Material Handling Gates
Actuates heavy industrial diverter gates using the SUS420J2 stainless rod to resist humid plant environments.
Replacing the Airtac SI100 Standard Cylinder SI100AX170 with the SAI100AX170
To replace the SI100AX170, order the SAI100AX170. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port thread (PT, G, or NPT), and the 170 mm stroke. Because this is a no-magnet SKU, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, specify an SAI with the -S magnet option. Sizing both ways: the 100 mm bore yields 3927 N at 0.5 MPa, while an 80 mm bore yields 2513 N. For load holding, note that a plain cylinder drifts on air loss—the cushion only decelerates. Use an external pilot check valve, or explore the SAIL or BSAI lock variants. The 170 mm stroke is under 300 mm, so rod-bending side-load risks are low, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX170
- ✓ 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 SI100AX170 FAQ
Yes, the SI100AX170 is discontinued. The direct replacement is the SAI100AX170. It shares the identical ISO 15552 mounting interface, 100 mm bore, 170 mm stroke, force, and G1/2 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G1/2 port. It delivers 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 theoretical max of 801 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX170
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX170 replacement — usually within 7-8 hours.