This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX600, 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 SI100BX600
The AirTAC Airtac SI100 Standard Cylinder SI100BX600 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 600mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX600, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX600
- 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 SI100BX600
The AirTAC SI100BX600 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 600mm stroke. It delivers 3927 N push force at 0.5 MPa and uses a G1/2 port. The direct replacement is the SAI100BX600, which matches the exact bore, stroke, force, port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SI100BX600 variant has a SUS304 stainless steel rod (B) but lacks a magnet, so it cannot accept position switches.
Airtac SI100 Standard Cylinder SI100BX600 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX600 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX600 |
| Bore size | Ø100 mm |
| Stroke | 600 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 SAI100BX600 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 SAI100BX600 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 SI100BX600
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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 SI100BX600 Is Used
Heavy Press Ejection
Provides the robust 3927 N push force needed to eject dense stamped metal parts from heavy press dies, utilizing the full 600mm travel to clear the work area.
Pallet Diversion
Acts as a high-power divert arm on automated conveyors, moving heavy loaded pallets laterally with reliable force over a long 600mm extension.
Material Lift Gate
Raises and lowers large loading bay gates or heavy material handling barriers, where the SUS304 rod offers corrosion resistance in humid environments.
Replacing the Airtac SI100 Standard Cylinder SI100BX600 with the SAI100BX600
To replace the SI100BX600, order the SAI100BX600. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the G1/2 air port, and the M20x1.5 rod thread. Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; if sensing is needed, specify an SAI with an S suffix. The 100mm bore yields 3927 N push at 0.5 MPa; if undersizing, an 80mm bore gives 2513 N, while oversizing to 125mm provides 6136 N. For the 600mm stroke, use external guides to prevent rod bending and side-load damage. The cushion only decelerates the load; it does not hold position. For secure load holding on air loss, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX600
- ✓ 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 SI100BX600 FAQ
Yes, the SI100BX600 is discontinued. The direct replacement is the SAI100BX600. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 600mm stroke, output force, G1/2 port, and mounting interface.
This double-acting cylinder uses a G1/2 air port. It generates a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa the push force is 5497 N, and at 0.9 MPa it is 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX600
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX600 replacement — usually within 7-8 hours.