This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X600STC, 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 SI100X600STC
The AirTAC Airtac SI100 Standard Cylinder SI100X600STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 600mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X600STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X600STC
- 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 SI100X600STC
The AirTAC SI100X600STC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 600mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa, utilizing a G1/2 port and M20x1.5 rod thread. The direct replacement is the SAI100X600STC, retaining the same interface, force, and TC trunnion mount.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family adds SAIL, SAIF, and BSAI lock variants. This -S model uses CS1-B/DS1-B sensors; the SAI uses current AirTAC switches.
Airtac SI100 Standard Cylinder SI100X600STC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X600STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X600STC |
| Bore size | Ø100 mm |
| Stroke | 600 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 SAI100X600STC 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 SAI100X600STC 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 SI100X600STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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 SI100X600STC Is Used
Heavy Material Transfer
Drives large pallets or heavy workpieces along assembly lines, utilizing the 3927N push force to overcome friction over the 600mm travel distance.
Automated Warehousing
Executes 600mm stroke actuation for positioning heavy storage containers, where the TC trunnion mount accommodates the required pivot alignment.
Large Press Ejection
Pushes finished parts out of large molding or stamping machinery, relying on the 100mm bore's robust output and adjustable end cushions to decelerate loads.
Replacing the Airtac SI100 Standard Cylinder SI100X600STC with the SAI100X600STC
To replace the SI100X600STC, order the SAI100X600STC. Verify the ISO 15552 TC trunnion mount, 100mm bore, 600mm stroke, G1/2 port, and the -S magnet. If sizing up, the 125mm bore offers 6136N push; if sizing down, the 80mm bore provides 2513N push at 0.5MPa. For this 600mm stroke, use an external guide to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X600STC
- ✓ 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 SI100X600STC FAQ
Yes, the SI100X600STC is discontinued. The direct replacement is the SAI100X600STC. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 600mm stroke, G1/2 port, TC mount, and output force for existing fixtures.
The 100mm bore delivers 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, and it uses a G1/2 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X600STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X600STC replacement — usually within 7-8 hours.