This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X100, 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 SI100X100
The AirTAC Airtac SI100 Standard Cylinder SI100X100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X100
- 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 SI100X100
The AirTAC SI100X100 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 100 mm stroke, delivering 3927 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI100X100, a direct upgrade retaining the exact ISO 15552 mounting interface, G1/2 port, and M20x1.5 rod thread. The SAI features an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
Because this specific SKU lacks the -S magnet suffix, it cannot accept position sensors like the legacy CS1-B/DS1-B switches. For load holding, remember the air cushion only decelerates; it does not lock.
Airtac SI100 Standard Cylinder SI100X100 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X100 |
| Bore size | Ø100 mm |
| Stroke | 100 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 SAI100X100 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 SAI100X100 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 SI100X100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×100 | 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 SI100X100 Is Used
Heavy Pressing
Drives robust clamping and pressing jigs requiring up to 3927 N of push force at 0.5 MPa.
Pallet Diverting
Actuates heavy-duty lane diverters and stops on automated packaging conveyors.
Material Lift
Provides vertical lifting power for 200 kg loads within automated storage systems.
Replacing the Airtac SI100 Standard Cylinder SI100X100 with the SAI100X100
To replace the discontinued SI100X100, order the SAI100X100 and verify your ISO 15552 mounting fixture, 100 mm stroke, and G1/2 port (available in PT, G, or NPT). This SKU has no magnet, so if you need position sensing you must select an SAI variant with the S suffix to use current AirTAC switches. Sizing both ways: a neighboring 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore provides 6136 N. For applications requiring held loads without live air, the plain SAI piston will drift; specify the SAIL air-released lock or BSAI clamp-lock variant, or use an external pilot check valve. The SAIF variant with a built-in 4M valve is also available for bores up to 100 mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X100
- ✓ 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 SI100X100 FAQ
Yes, the SI100X100 is discontinued. The direct replacement is the AirTAC SAI100X100. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 100 mm stroke, output force, G1/2 port, and mounting accessories.
The 100 mm bore 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 maximum theoretical force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X100
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X100 replacement — usually within 7-8 hours.