This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1020S, 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 SI100X1020S
The AirTAC Airtac SI100 Standard Cylinder SI100X1020S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1020mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1020S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1020 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1020S
- 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 SI100X1020S
The AirTAC SI100X1020S is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 1020 mm stroke. Delivering 3927 N push at 0.5 MPa through a G1/2 port, it is replaced by the SAI100X1020S direct. The SAI retains the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories, fitting existing fixtures perfectly.
The SAI upgrade features a new piston seal using two Y-shaped one-way elements for low start-up pressure and long life. The SAI family adds SAIL, SAIF and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X1020S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1020S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1020S |
| Bore size | Ø100 mm |
| Stroke | 1020 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 SAI100X1020S 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 SAI100X1020S 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 SI100X1020S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1020 | 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 SI100X1020S Is Used
Long-Stroke Material Transfer
Pushes heavy pallets or workpieces across 1000+ mm stations, utilizing the 3927 N push force at 0.5 MPa to overcome guide friction.
Large Press Ejection
Ejects formed parts from heavy machinery, benefiting from the 36 mm adjustable air cushions at both ends to decelerate the 1020 mm travel.
Replacing the Airtac SI100 Standard Cylinder SI100X1020S with the SAI100X1020S
To replace the SI100X1020S, order the SAI100X1020S. Confirm the ISO 15552 mounting interface, G1/2 port, M20x1.5 rod thread and mounting accessory. The -S magnet enables CS1-B/DS1-B switches. At 1020 mm, this long stroke risks rod bending; use external guides to prevent side-load damage. Sizing both ways: the 80 mm bore gives 2513 N [email protected], while the 125 mm bore gives 6136 N. A plain cylinder drifts on air loss as cushions only decelerate; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1020S
- ✓ 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 SI100X1020S FAQ
Yes, the SI100X1020S is discontinued. The direct replacement is the SAI100X1020S. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 1020 mm stroke, G1/2 port, output force and mounting accessories.
The G1/2 port bore delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa with a speed of 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1020S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1020S replacement — usually within 7-8 hours.