This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX1000, 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 SI100BX1000
The AirTAC Airtac SI100 Standard Cylinder SI100BX1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX1000, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX1000
- 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 SI100BX1000
The AirTAC SI100BX1000 is a discontinued double-acting ISO 15552 profile cylinder with a 1000 mm stroke, delivering 3927 N push and 3681 N pull at 0.5 MPa. It features a SUS304 stainless piston rod (-B) for corrosion resistance, a G1/2 port, and 36 mm adjustable air cushions. As this SKU lacks a magnet, it cannot accept position switches.
AirTAC replaced this legacy unit with the SAI100BX1000, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
Airtac SI100 Standard Cylinder SI100BX1000 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX1000 |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAI100BX1000 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 SAI100BX1000 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 SI100BX1000
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1000 | 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 SI100BX1000 Is Used
Long-Stroke Diversion
Actuates large diverter gates on heavy-duty package conveyors, utilizing the full 1000 mm travel to shift items between parallel sorting lines.
Pallet Push-Off
Provides the 3927 N push force at 0.5 MPa needed to eject standard pallets from automated storage and retrieval system shuttles.
Stainless Rod Washdown
The SUS304 rod option suits secondary packaging in food and beverage lines where moisture resistance and reliable 1000 mm actuation are required.
Replacing the Airtac SI100 Standard Cylinder SI100BX1000 with the SAI100BX1000
To replace the SI100BX1000, order the SAI100BX1000. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port thread (PT/G/NPT), and note that this -B variant specifies a SUS304 stainless rod. Because this SKU has no -S magnet, it cannot support sensing; if switches are needed, specify a magnet on the SAI order. Sizing context: a 100 mm bore yields 5497 N push at 0.7 MPa, whereas an 80 mm bore gives 3518 N. For load holding, a plain cylinder drifts on air loss—the cushion only decelerates—so use an external pilot check valve or the SAIL/BSAI lock variants. Finally, at 1000 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX1000
- ✓ 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 SI100BX1000 FAQ
Yes, the SI100BX1000 is discontinued. The direct replacement is the SAI100BX1000. It shares the identical ISO 15552 mounting interface, 100 mm bore, 1000 mm stroke, force, and G1/2 port, fitting existing fixtures perfectly while upgrading the piston seal.
It features a G1/2 port. The thrust 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 SAI100BX1000
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX1000 replacement — usually within 7-8 hours.