This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X180, 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 SI100X180
The AirTAC SI100 Standard Cylinder SI100X180 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 SAI100X180, 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 → SAI100X180
- 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 SI100X180
The AirTAC SI100X180 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 180mm stroke, delivering 3927 N push force at 0.5 MPa through its G1/2 port. AirTAC replaced this legacy unit with the SAI100X180, a direct upgrade retaining the exact same interface, bore, stroke, force, port and mounting fixtures.
The SAI replacement features an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life. Since this specific SI SKU lacks the -S magnet, it cannot accept a position sensor.
Airtac SI100 Standard Cylinder SI100X180 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X180 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X180 |
| 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 SAI100X180 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 SAI100X180 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 SI100X180
| 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 SI100X180 Is Used
Heavy-Duty Pressing
Drives robust stamping and forming operations requiring up to 5497 N of thrust at 0.7 MPa within compact machinery frames.
Pallet Diversion
Actuates heavy lane guides and diverter arms to redirect loaded pallets along high-throughput material handling lines.
Fixture Clamping
Secures large workholding fixtures and bulky components during machining, utilizing the 36mm adjustable air cushions for smooth stops.
Replacing the Airtac SI100 Standard Cylinder SI100X180 with the SAI100X180
To replace the SI100X180, order the SAI100X180 and verify your ISO 15552 mounting interface, G1/2 port thread (PT/G/NPT) and M20x1.5 rod-end. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add the S suffix if you need current AirTAC switches. At 100mm, output is 3927 N push and 3681 N pull at 0.5 MPa; dropping to an 80mm bore yields 2513 N, while a 125mm bore provides 6136 N. The 180mm stroke is well within the 1500mm standard limit. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X180
- ✓ 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 SI100X180 FAQ
Yes, the AirTAC SI100X180 is discontinued. The direct replacement is the SAI100X180. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 180mm stroke, 3927 N force, G1/2 port and mounting interface, so it fits existing fixtures perfectly.
This double-acting cylinder features a G1/2 air port and M20x1.5 rod thread. 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 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 SAI100X180
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X180 replacement — usually within 7-8 hours.