This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX750S, 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 SI100AX750S
The AirTAC SI100 Standard Cylinder SI100AX750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 750mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke750 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX750S
- 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 SI100AX750S
The AirTAC SI100AX750S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 750mm stroke. It delivers 3927 N push force at 0.5 MPa. The direct replacement is the SAI100AX750S, matching the exact bore, stroke, G1/2 port, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with legacy CS1-B/DS1-B sensors. Note that plain cylinders drift without air; use the SAIL or BSAI lock variants for load holding.
Airtac SI100 Standard Cylinder SI100AX750S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX750S |
| Bore size | Ø100 mm |
| Stroke | 750 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 SAI100AX750S 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 SAI100AX750S 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 SI100AX750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×750 | 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 SI100AX750S Is Used
Heavy Pressing
Drives large stamping or forming fixtures requiring 3927 N of thrust at 0.5 MPa with a 750mm reach.
Pallet Transfer
Shifts heavy loaded pallets between roller lines, utilizing the G1/2 port for rapid 100mm bore actuation.
Replacing the Airtac SI100 Standard Cylinder SI100AX750S with the SAI100AX750S
To replace the SI100AX750S, order the SAI100AX750S. Verify the ISO 15552 mounting interface, the 750mm stroke, the G1/2 port, and the SUS420J2 stainless rod (-A). The -S magnet enables position sensing. Sizing both ways: a 100mm bore yields 3927 N push at 0.5 MPa, while an 80mm bore yields 2513 N. Because the 750mm stroke is long, use external guides to prevent rod bending and side-load damage. The air cushion only decelerates; it does not hold load. For static holding on air loss, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX750S
- ✓ 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 SI100AX750S FAQ
Yes, the AirTAC SI100AX750S is discontinued. The direct replacement is the SAI100AX750S. It is dimensionally interchangeable per ISO 15552, keeping the same 100mm bore, 750mm stroke, force, G1/2 port, and mounting fixtures.
The G1/2 port feeds a 25mm rod. Forces are: 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX750S replacement — usually within 7-8 hours.