This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X383S, 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 SI100X383S
The AirTAC Airtac SI100 Standard Cylinder SI100X383S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 383mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X383S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke383 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X383S
- 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 SI100X383S
The AirTAC SI100X383S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 3927 N push force at 0.5 MPa through its G1/2 port. AirTAC replaced this legacy unit with the SAI100X383S. This direct successor shares the exact 100 mm bore, 383 mm stroke, M20x1.5 rod thread, and ISO 15552 mounting interface, dropping straight into existing fixtures without mechanical changes.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for low start-up pressure and extended service life. The SAI family also expands functionality with SAIL air-released lock, SAIF integrated 4M valve, and BSAI clamp-lock variants that the original SI line lacked. Your -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors, which the SAI replacement pairs with current AirTAC switches.
Airtac SI100 Standard Cylinder SI100X383S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X383S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X383S |
| Bore size | Ø100 mm |
| Stroke | 383 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 SAI100X383S 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 SAI100X383S 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 SI100X383S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×383 | 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 SI100X383S Is Used
Heavy-Duty Pressing
Drives robust stamping and forming stations with 3927 N of push force at 0.5 MPa, utilizing the adjustable 36 mm air cushions to absorb end-of-stroke impact.
Pallet Diversion
Actuates heavy lane changers and sorting gates over the 383 mm travel, requiring external guides to prevent rod bending under high lateral pallet loads.
Replacing the Airtac SI100 Standard Cylinder SI100X383S with the SAI100X383S
To replace the discontinued SI100X383S, order the SAI100X383S, verifying the ISO 15552 mounting interface, G1/2 port, and 383 mm stroke. Retain your original mounting accessory (LB foot, FA flange, or TC trunnion) and confirm the -S magnet requirement for position sensing. Sizing both ways: the 100 mm bore yields 3927 N push at 0.5 MPa, while the neighboring 80 mm bore provides 2513 N; if your supply reaches 0.7 MPa, this 100 mm unit pushes 5497 N. Because the 383 mm stroke invites rod bending under lateral stress, employ an external guide to prevent side-load damage. A standard cylinder drifts on air loss—the cushion only decelerates—so for load holding specify an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X383S
- ✓ 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 SI100X383S FAQ
Yes, the SI100X383S is discontinued. The direct replacement is the SAI100X383S. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 383 mm stroke, G1/2 port, and mounting interface, but features an upgraded piston seal for longer life.
The 100 mm bore operates at 30-800 mm/s. Force output is 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, with a theoretical maximum of 801 kgf at 1.0 MPa. The air port is G1/2.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X383S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X383S replacement — usually within 7-8 hours.