This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX65, 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 SI100AX65
The AirTAC Airtac SI100 Standard Cylinder SI100AX65 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 65mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX65, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX65
- 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 SI100AX65
The AirTAC SI100AX65 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 65 mm stroke. It delivers 3927 N push and 3681 pull at 0.5 MPa, utilizing a G1/2 port. The direct replacement is the SAI100AX65, matching the exact bore, stroke, force, port and ISO 15552 mounting interface for a seamless fixture swap.
The SAI upgrade features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses a SUS420J2 stainless steel rod (A suffix) for corrosion resistance. Since it lacks the -S magnet, it cannot take a sensor.
Airtac SI100 Standard Cylinder SI100AX65 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX65 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX65 |
| Bore size | Ø100 mm |
| Stroke | 65 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 SAI100AX65 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 SAI100AX65 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 SI100AX65
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×65 | 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 SI100AX65 Is Used
Heavy-Duty Pressing
Drives large forming and stamping presses requiring substantial thrust, leveraging the 3927 N push force at 0.5 MPa.
Large Clamp Fixtures
Secures heavy automotive or structural components during machining using the robust 100 mm bore profile barrel.
Replacing the Airtac SI100 Standard Cylinder SI100AX65 with the SAI100AX65
To replace the SI100AX65, order the SAI100AX65. Verify the ISO 15552 mounting interface, the 65 mm stroke, the G1/2 port (PT/G/NPT), and your mounting accessory. This unit has no -S magnet, so it cannot accept a CS1-B/DS1-B sensor; order a magnet-equipped SAI if position detection is required. The SUS420J2 stainless rod suits humid environments. If you need more force, the 125 mm bore offers 6136 N push at 0.5 MPa; if less is needed, the 80 mm bore provides 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX65
- ✓ 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 SI100AX65 FAQ
Yes, the AirTAC SI100AX65 is discontinued. The direct replacement is the SAI100AX65. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 65 mm stroke, output force, G1/2 port, and mounting interface to fit existing fixtures perfectly.
This double-acting cylinder features a G1/2 air port and a 25 mm piston rod. The thrust is 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX65
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX65 replacement — usually within 7-8 hours.