This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX880S, 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 SI100BX880S
The AirTAC Airtac SI100 Standard Cylinder SI100BX880S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 880mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX880S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke880 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX880S
- 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 SI100BX880S
The AirTAC SI100BX880S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 880mm stroke. Delivering 3927N push force at 0.5MPa, it features a SUS304 stainless piston rod (B option), a G1/2 port, and a built-in magnet (S) for CS1-B/DS1-B legacy sensors. AirTAC replaced this legacy unit with the SAI100BX880S.
The SAI100BX880S is the direct successor: identical ISO 15552 mounting interface, bore, stroke, and force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life.
Airtac SI100 Standard Cylinder SI100BX880S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX880S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX880S |
| Bore size | Ø100 mm |
| Stroke | 880 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 SAI100BX880S 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 SAI100BX880S 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 SI100BX880S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×880 | 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 SI100BX880S Is Used
Long-Stroke Diversion
Pushes heavy pallets across 880mm transfer lines using the 3927N thrust at 0.5MPa, guided externally to prevent rod bending.
Large Press Ejection
Ejects formed parts from machinery, relying on the 36mm adjustable air cushions to decelerate the 100mm bore at stroke ends.
Replacing the Airtac SI100 Standard Cylinder SI100BX880S with the SAI100BX880S
To replace the SI100BX880S, order the SAI100BX880S. Confirm the ISO 15552 mounting fixture, the G1/2 port, the M20x1.5 rod thread, and the -BS options (SUS304 rod and magnet for current AirTAC switches). Sizing both ways: this 100mm bore yields 3927N push at 0.5MPa; dropping to an 80mm bore gives 2513N, while a 125mm bore provides 6136N. Because stroke is 880mm, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX880S
- ✓ 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 SI100BX880S FAQ
Yes, the SI100BX880S is discontinued. The direct replacement is the SAI100BX880S. It shares the same ISO 15552 mounting interface, 100mm bore, 880mm stroke, G1/2 port, and force ratings, but features an upgraded two Y-shaped piston seal for longer life.
The G1/2 port is fixed by the 100mm bore. Force outputs are: 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX880S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX880S replacement — usually within 7-8 hours.