This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X730, 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 SI100X730
The AirTAC Airtac SI100 Standard Cylinder SI100X730 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 730mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X730, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke730 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X730
- 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 SI100X730
The AirTAC SI100X730 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 730mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X730, a direct upgrade retaining the exact ISO 15552 mounting interface, stroke, and output force.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Because this SKU lacks a magnet, it cannot accept position sensors. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI100 Standard Cylinder SI100X730 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X730 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X730 |
| Bore size | Ø100 mm |
| Stroke | 730 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 SAI100X730 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 SAI100X730 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 SI100X730
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×730 | 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 SI100X730 Is Used
Heavy Material Transfer
Drives large pallets or heavy workpieces along assembly lines, utilizing the 3927 N push force to overcome friction over the 730mm travel.
Automated Warehousing
Actuates heavy-duty lifting gates or diverter arms where the substantial 100mm bore provides the necessary thrust to move loaded components.
Large Press Ejection
Ejects finished parts from large molding or stamping machinery, requiring the full 730mm extension to clear the press bed safely.
Replacing the Airtac SI100 Standard Cylinder SI100X730 with the SAI100X730
To replace the SI100X730, order the SAI100X730. Verify your ISO 15552 mounting hardware (LB, FA, CA, TC), the G1/2 air port, and the 730mm stroke. This non-magnet SKU cannot take CS1-B or DS1-B sensors; if sensing is required, specify an SAI model with the magnet option. The 100mm bore yields 3927 N push at 0.5 MPa; if less force is needed, an 80mm bore provides 2513 N, while a 125mm bore offers 6136 N. For this 730mm stroke, use external guides to prevent rod bending and side-load damage. The air cushion only decelerates the piston; it does not hold load on air loss, so add a pilot check valve or consider the SAIL lock variant for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X730
- ✓ 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 SI100X730 FAQ
Yes, the AirTAC SI100X730 is discontinued. The direct replacement is the SAI100X730. It shares the identical ISO 15552 mounting interface, 100mm bore, 730mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly without modifications.
This 100mm bore cylinder features a G1/2 air port and a 25mm rod. 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 of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X730
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X730 replacement — usually within 7-8 hours.