This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX260, 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 SI100AX260
The AirTAC Airtac SI100 Standard Cylinder SI100AX260 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 260mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX260, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke260 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX260
- 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 SI100AX260
The AirTAC SI100AX260 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 260mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100AX260, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting hardware.
The SAI upgrade features a modernized piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU uses a SUS420J2 stainless steel rod (the -A option) for corrosion resistance, but lacks a magnet, meaning it cannot accept position sensors. For load holding, note that air cushions only decelerate; you need the SAIL lock or BSAI clamp-lock variant for secure holding.
Airtac SI100 Standard Cylinder SI100AX260 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX260 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX260 |
| Bore size | Ø100 mm |
| Stroke | 260 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 SAI100AX260 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 SAI100AX260 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 SI100AX260
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×260 | 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 SI100AX260 Is Used
Pressing & Forming
Ideal for mid-tonnage pressing tasks, delivering 5497 N at 0.7 MPa to seat bearings or form light metal components securely.
Heavy Product Diverting
Robust 100mm bore provides the necessary push force to redirect heavy pallets or large workpieces on assembly lines.
Replacing the Airtac SI100 Standard Cylinder SI100AX260 with the SAI100AX260
To replace the discontinued SI100AX260, order the SAI100AX260. Verify your ISO 15552 mounting interface (LB, FA, FB, CA, CB, TC, etc.), the G1/2 air port, and the M20x1.5 rod thread. This unit has the -A stainless steel rod and no magnet, so it cannot support CS1-B or DS1-B sensors; if sensing is required, select an SAI model with the -S magnet option. The 100mm bore yields 3927 N push at 0.5 MPa; if undersizing, a 80mm bore provides 2513 N, while oversizing to 125mm yields 6136 N. Because the 260mm stroke exceeds 300mm? No, but for any stroke over 300mm ensure guide rails to prevent rod bending. For dead-load holding, the standard cushion only decelerates; specify an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX260
- ✓ 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 SI100AX260 FAQ
Yes, the AirTAC SI100AX260 is discontinued. The direct replacement is the SAI100AX260. It is dimensionally interchangeable per ISO 15552, matching the bore, stroke, force, G1/2 port, and mounting fixtures.
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 maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX260
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX260 replacement — usually within 7-8 hours.