This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X330S, 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 SI100X330S
The AirTAC SI100 Standard Cylinder SI100X330S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 330mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X330S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke330 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X330S
- 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 SI100X330S
The AirTAC SI100X330S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 330mm stroke. It delivers 3927 N push and 3681 N pull force at 0.5 MPa, utilizing a G1/2 port and M20x1.5 rod thread. AirTAC replaced this legacy unit with the SAI100X330S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, and output force.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. It also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X330S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X330S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X330S |
| Bore size | Ø100 mm |
| Stroke | 330 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 SAI100X330S 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 SAI100X330S 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 SI100X330S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×330 | 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 SI100X330S Is Used
Heavy Press Clamping
Secures large metal castings during machining operations, utilizing the 3927 N push force at 0.5 MPa to hold components rigidly against cutting loads.
Pallet Diverting
Actuates heavy-duty divert arms on conveyor lines. The 330mm stroke provides the reach needed to redirect fully loaded pallets smoothly.
Material Lowering
Controls the descent of weighted platforms in packaging cells. The adjustable 36mm air cushions decelerate the load safely at stroke end.
Replacing the Airtac SI100 Standard Cylinder SI100X330S with the SAI100X330S
To replace the SI100X330S, order the SAI100X330S. Verify the ISO 15552 mounting interface, G1/2 port, and your mounting accessory (LB, FA, TC, etc.). The -S suffix confirms the magnet for position sensing. Sizing checks: the 100mm bore yields 3927 N push at 0.5 MPa (80mm bore offers 2513 N; 125mm offers 6136 N). Note that a plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variant, or an external pilot check valve. Because the 330mm stroke exceeds 300mm, add external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X330S
- ✓ 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 SI100X330S FAQ
Yes, the SI100X330S is discontinued. The direct replacement is the AirTAC SAI100X330S. It features the same ISO 15552 mounting interface, 100mm bore, 330mm stroke, output force, G1/2 port, and accessories, fitting directly into existing fixtures.
The cylinder uses a G1/2 air port. 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, and a theoretical maximum of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X330S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X330S replacement — usually within 7-8 hours.