This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX980S, 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 SI100BX980S
The AirTAC Airtac SI100 Standard Cylinder SI100BX980S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 980mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX980S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke980 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX980S
- 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 SI100BX980S
The AirTAC SI100BX980S is a discontinued double-acting ISO 15552 profile cylinder featuring a 100 mm bore, 980 mm stroke, and a SUS304 stainless piston rod. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100BX980S. This direct upgrade maintains the exact ISO 15552 mounting interface, G1/2 port, and stroke.
The SAI revision upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Because this is a long 980 mm stroke, use external guides to prevent rod bending. The built-in magnet supports legacy CS1-B/DS1-B sensors, while the SAI accepts current AirTAC switches.
Airtac SI100 Standard Cylinder SI100BX980S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX980S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX980S |
| Bore size | Ø100 mm |
| Stroke | 980 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 SAI100BX980S 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 SAI100BX980S 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 SI100BX980S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×980 | 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 SI100BX980S Is Used
Long-Stroke Diversion
Pushes heavy pallets across wide conveyor lanes using the 980 mm stroke, relying on external guides to absorb side loads during transit.
Stainless Rod Actuation
Drives mechanisms in washdown or corrosive environments using the SUS304 (-B) piston rod, requiring external stops for precise end-positioning.
Replacing the Airtac SI100 Standard Cylinder SI100BX980S with the SAI100BX980S
To replace the SI100BX980S, order the SAI100BX980S. Verify your ISO 15552 mounting hardware (LB, FA, TC, etc.), the G1/2 port, and the M20x1.5 rod thread. The -B rod is SUS304 stainless and the -S magnet works with legacy CS1-B/DS1-B switches. If sizing up or down, a 125 mm bore gives 6136 N push at 0.5 MPa, while an 80 mm bore gives 2513 N. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve, or specify the SAIL or BSAI lock variant. The 980 mm stroke demands external guides to manage side-load and rod-bending risks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX980S
- ✓ 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 SI100BX980S FAQ
Yes, the SI100BX980S is discontinued. The direct replacement is the SAI100BX980S. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 980 mm stroke, force, G1/2 port, and mounting fixtures.
It has a G1/2 port. Force ratings are 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 max of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX980S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX980S replacement — usually within 7-8 hours.