This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X700SFA, 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 SI100X700SFA
The AirTAC Airtac SI100 Standard Cylinder SI100X700SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X700SFA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X700SFA
- 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 SI100X700SFA
The AirTAC SI100X700SFA is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 700mm stroke, FA flange mount, and a magnetic piston for CS1-B/DS1-B switches. Delivering 3927 N push force at 0.5 MPa via a G1/2 port, it is replaced by the SAI100X700SFA. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line, and Viton H seals can raise the operating temperature to 150 C.
Airtac SI100 Standard Cylinder SI100X700SFA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X700SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X700SFA |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAI100X700SFA 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 SAI100X700SFA 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 SI100X700SFA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SI100X700SFA Is Used
Heavy Material Transfer
Drives large pallets or heavy fixtures along a conveyor line, utilizing the 3927 N push force to move loads smoothly over the 700mm extension.
Pallet Positioning Gates
Actuates heavy-duty routing gates or stops in a high-throughput distribution center, relying on the FA flange to stabilize the 100mm bore body.
Large Assembly Press
Provides the 700mm reach and 200 kg vertical lift capacity required to lower heavy components or tooling heads into position on an assembly line.
Replacing the Airtac SI100 Standard Cylinder SI100X700SFA with the SAI100X700SFA
To replace the SI100X700SFA, order the SAI100X700SFA. Confirm the ISO 15552 FA flange interface, 100mm bore, 700mm stroke, G1/2 port, and the -S magnet for current AirTAC switches. If you need more force, the neighboring 125mm bore yields 6136 N at 0.5 MPa; if less is acceptable, the 80mm bore provides 2513 N. Because this is a 700mm stroke, use an external guide to prevent rod bending and side-load damage. A plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or choose the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X700SFA
- ✓ 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 SI100X700SFA FAQ
Yes, the SI100X700SFA is discontinued. The direct replacement is the SAI100X700SFA. It shares the same ISO 15552 mounting interface, 100mm bore, 700mm stroke, G1/2 port, and FA flange, fitting directly into your existing fixtures.
The G1/2 port feeds a 25mm rod. Force ratings are 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. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X700SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X700SFA replacement — usually within 7-8 hours.