This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX160S, 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 SI100BX160S
The AirTAC Airtac SI100 Standard Cylinder SI100BX160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 160mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX160S
- 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 SI100BX160S
The AirTAC SI100BX160S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 160mm stroke, and a SUS304 stainless steel rod. Delivering 3927 N push force at 0.5 MPa, it is replaced direct by the SAI100BX160S. This successor shares the exact G1/2 port, M20x1.5 thread, and mounting interface. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
The -S magnet works with legacy CS1-B/DS1-B switches, while the SAI uses current sensors. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Airtac SI100 Standard Cylinder SI100BX160S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX160S |
| Bore size | Ø100 mm |
| Stroke | 160 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 SAI100BX160S 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 SAI100BX160S 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 SI100BX160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×160 | 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 SI100BX160S Is Used
Heavy Press Clamping
Secures large metal castings during machining operations, utilizing the 3927 N push force at 0.5 MPa to hold components firmly against the fixture.
Pallet Positioning
Drives robust 160mm stroke lowering motions in automated palletizing cells, where the SUS304 stainless rod resists moisture in washdown zones.
Bulk Material Diversion
Actuates heavy-duty diverter arms on high-throughput packaging lines, relying on the 36mm adjustable air cushions to decelerate the load smoothly.
Replacing the Airtac SI100 Standard Cylinder SI100BX160S with the SAI100BX160S
To replace the SI100BX160S, order the SAI100BX160S. Verify the ISO 15552 mounting dimensions, 100mm bore, 160mm stroke, G1/2 port (PT/G/NPT), and your specific mounting accessory. The -B rod is SUS304 stainless steel, and the -S magnet supports CS1-B/DS1-B switches (SAI uses current AirTAC switches). Sizing both ways: a neighbouring 80mm bore yields 2513 N push at 0.5 MPa, while a 125mm bore yields 6136 N. Remember, a plain cylinder does not hold load without live air; the cushion only decelerates. For held loads, consider an external pilot check valve or the SAIL/BSAI lock variants. Since 160mm is under 300mm, side-load rod-bending risk is minimal, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX160S
- ✓ 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 SI100BX160S FAQ
Yes, the SI100BX160S is discontinued. The direct replacement is the SAI100BX160S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 160mm stroke, 3927 N force, G1/2 port, and mounting interface. The SAI simply upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure.
The 100mm bore features a G1/2 air port. Force 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 maximum of 801 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 36mm adjustable cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX160S replacement — usually within 7-8 hours.