This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X690S, 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 SI100X690S
The AirTAC Airtac SI100 Standard Cylinder SI100X690S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 690mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X690S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke690 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X690S
- 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 SI100X690S
The AirTAC SI100X690S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 690mm stroke. Generating 3927N push force at 0.5MPa, it is replaced by the SAI100X690S. This direct upgrade shares the exact ISO 15552 mounting interface, G1/2 port, and output force.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces lock and valve variants absent in the SI line.
Airtac SI100 Standard Cylinder SI100X690S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X690S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X690S |
| Bore size | Ø100 mm |
| Stroke | 690 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 SAI100X690S 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 SAI100X690S 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 SI100X690S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×690 | 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 SI100X690S Is Used
Heavy Material Transfer
Drives robust pallet stops and heavy workpiece diverters on automated production lines requiring substantial push force over a long 690mm reach.
Large Press Ejection
Ejects bulky formed parts from heavy machinery, utilizing the adjustable 36mm air cushions to decelerate the 25mm rod smoothly at stroke ends.
Replacing the Airtac SI100 Standard Cylinder SI100X690S with the SAI100X690S
To replace the SI100X690S, order the SAI100X690S. Verify the ISO 15552 mounting interface, M20x1.5 rod thread, G1/2 port, and the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). For sizing, the neighboring 80mm bore yields 2513N push at 0.5MPa, while the 125mm bore provides 6136N. At 690mm, add external guides to prevent rod bending and side loads. A plain cylinder drifts without air; for load holding, use the SAIL or BSAI lock variants, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X690S
- ✓ 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 SI100X690S FAQ
Yes, the SI100X690S is discontinued. The direct replacement is the SAI100X690S. It shares the same ISO 15552 mounting interface, 100mm bore, 690mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
The G1/2 port is fixed by the 100mm bore. At 0.5MPa it provides 3927N push and 3681N pull. At 0.7MPa push is 5497N, and at 0.9MPa it is 7068N. The theoretical maximum force is 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X690S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X690S replacement — usually within 7-8 hours.