This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX80, 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 SI100BX80
The AirTAC Airtac SI100 Standard Cylinder SI100BX80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX80, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX80
- 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 SI100BX80
The AirTAC SI100BX80 is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel and adjustable air cushions at both ends. Delivering 3927 N push force at 0.5 MPa through a G1/2 port, it is replaced by the SAI100BX80. This direct successor shares the exact bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI100BX80 upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This SUS304 stainless-rod (-B) SKU lacks a magnet and cannot take a sensor. The SAI family also adds SAIL, SAIF, and BSAI lock variants.
Airtac SI100 Standard Cylinder SI100BX80 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX80 |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAI100BX80 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 SAI100BX80 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 SI100BX80
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SI100BX80 Is Used
Heavy-Duty Pressing
Drives 3927 N at 0.5 MPa for seating bearings and stamping thick-gauge materials in automated fabrication lines.
Pallet Diversion
Provides the robust stroke needed to redirect heavy pallets on packaging conveyors without requiring full system pressure.
Replacing the Airtac SI100 Standard Cylinder SI100BX80 with the SAI100BX80
To replace the discontinued SI100BX80, order the SAI100BX80 with the identical ISO 15552 mounting interface, 100mm bore, 80mm stroke, and G1/2 port. Confirm your mounting accessory (LB, FA, TC, etc.) and note this -B variant uses a SUS304 rod. Because this SKU lacks -S, it cannot accept a CS1-B/DS1-B sensor. For sizing, the 100mm bore yields 3927 N push at 0.5 MPa; dropping to an 80mm bore gives 2513 N. The air cushion only decelerates; it does not hold load on air loss. For locked loads, use the SAIL or BSAI variant, or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX80
- ✓ 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 SI100BX80 FAQ
Yes, the SI100BX80 is discontinued. The direct replacement is the SAI100BX80. It shares the identical ISO 15552 mounting interface, 100mm bore, 80mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
The 100mm bore uses a G1/2 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 max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX80
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX80 replacement — usually within 7-8 hours.