This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X670S, 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 SI100X670S
The AirTAC Airtac SI100 Standard Cylinder SI100X670S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 670mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X670S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke670 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X670S
- 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 SI100X670S
The AirTAC SI100X670S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 670mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X670S, retaining identical mounting, output, and stroke specifications.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants. This SI-S model retains a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X670S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X670S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X670S |
| Bore size | Ø100 mm |
| Stroke | 670 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 SAI100X670S 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 SAI100X670S 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 SI100X670S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×670 | 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 SI100X670S Is Used
Heavy Press Ejection
Provides the 3927N push at 0.5MPa needed to eject dense stamped parts from heavy press dies.
Pallet Diversion
Uses the 670mm stroke to push large loaded pallets smoothly onto parallel conveyor lines.
Replacing the Airtac SI100 Standard Cylinder SI100X670S with the SAI100X670S
To replace the SI100X670S, order the SAI100X670S. Verify the ISO 15552 mounting interface, 100mm bore, 670mm stroke, G1/2 port, and M20x1.5 rod thread. Because this is a 670mm stroke, use external guides to prevent rod bending and side-load wear. For sizing, a neighboring 80mm bore yields 2513N push at 0.5MPa, while a 125mm bore yields 6136N. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. The -S suffix means a magnet is present for CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X670S
- ✓ 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 SI100X670S FAQ
Yes, the SI100X670S is discontinued. The direct replacement is the SAI100X670S. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 670mm stroke, G1/2 port, and mounting hardware.
It uses a G1/2 air port. Force output is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X670S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X670S replacement — usually within 7-8 hours.