This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X180N, 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 SI100X180N
The AirTAC SI100 Standard Cylinder SI100X180N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 180mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X180N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X180N
- 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 SI100X180N
The AirTAC SI100X180N is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering a push force of 3927 N at 0.5 MPa. AirTAC replaced this legacy unit with the SAI100X180N. This current-production direct maintains the exact 100mm bore, 180mm stroke, G1/2 port, and ISO 15552 mounting interface, dropping straight into existing fixtures without modifications.
The SAI upgrade features a redesigned piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. Because this specific SKU lacks the -S magnet, it cannot accept position sensors like the legacy CS1-B/DS1-B switches. The NBR seal supports -20 to +70 C, though a Viton H option raises this to 150 C.
Airtac SI100 Standard Cylinder SI100X180N Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X180N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X180N |
| Bore size | Ø100 mm |
| Stroke | 180 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 SAI100X180N 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 SAI100X180N 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 SI100X180N
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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 SI100X180N Is Used
Heavy-Duty Pressing
Applies the 3927 N push force at 0.5 MPa for seating heavy bearings or clinching sheet metal assemblies in automated fabrication lines.
Replacing the Airtac SI100 Standard Cylinder SI100X180N with the SAI100X180N
To replace the discontinued SI100X180N, order the SAI100X180N. Confirm the ISO 15552 mounting interface, 100mm bore, 180mm stroke, and G1/2 port (available in PT, G, or NPT threads). This non-magnetic SKU cannot accept sensors; if switching detection is needed, select an SAI model with the -S magnet option to use current AirTAC switches. A plain cylinder drifts on air loss since the air cushion only decelerates near stroke end; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. If downsizing, the 80mm bore yields 2513 N push at 0.5 MPa; if upsizing, the 125mm bore provides 6136 N. The 25mm rod and M20x1.5 thread remain unchanged.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X180N
- ✓ 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 SI100X180N FAQ
Yes, the SI100X180N is discontinued. The direct replacement is the SAI100X180N. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 180mm stroke, output force, G1/2 port, and mounting accessories.
This double-acting cylinder has a G1/2 port. It generates a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa the push force is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X180N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X180N replacement — usually within 7-8 hours.