This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX110, 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 SI100BX110
The AirTAC Airtac SI100 Standard Cylinder SI100BX110 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 110mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX110, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke110 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX110
- 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 SI100BX110
The AirTAC SI100BX110 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 110 mm stroke. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa, using a G1/2 port and a SUS304 stainless steel rod. The direct replacement is the SAI100BX110, which shares the exact ISO 15552 mounting interface, force, and port size.
Because this SKU lacks the -S suffix, it cannot accept a magnetic sensor. The SAI upgrade features a new two Y-shaped one-way piston seal for low start-up pressure.
Airtac SI100 Standard Cylinder SI100BX110 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX110 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX110 |
| Bore size | Ø100 mm |
| Stroke | 110 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 SAI100BX110 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 SAI100BX110 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 SI100BX110
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×110 | 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 SI100BX110 Is Used
Heavy-Duty Pressing
Drives robust stamping and forming stations, delivering 5497 N at 0.7 MPa to seat bearings and assemble dense mechanical components.
Pallet Diversion
Actuates heavy lane guiders and pallet stops on high-throughput packaging lines, using the 110 mm stroke to reroute wide loads.
Replacing the Airtac SI100 Standard Cylinder SI100BX110 with the SAI100BX110
To replace the SI100BX110, order the SAI100BX110. Confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port, and the M20x1.5 rod thread. Since this is a no-S SKU, it cannot take a CS1-B or DS1-B sensor; you must machine external mounts or use a standalone sensor if position detection is required. The SUS304 rod offers high corrosion resistance compared to standard carbon steel. If you need to hold a load without live air, note that the air cushion only decelerates; you must add an external pilot check valve or upgrade to the SAIL or BSAI lock variant. For sizing flexibility, a neighbouring 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore yields 6136 N.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX110
- ✓ 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 SI100BX110 FAQ
Yes, the SI100BX110 is discontinued. The direct replacement is the SAI100BX110. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 110 mm stroke, G1/2 port, and mounting interface.
At 0.5 MPa it provides 3927 N push and 3681 N pull. At 0.7 MPa push is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical max force is 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX110
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX110 replacement — usually within 7-8 hours.