This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX220S, 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 SI100BX220S
The AirTAC Airtac SI100 Standard Cylinder SI100BX220S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 220mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX220S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX220S
- 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 SI100BX220S
The AirTAC SI100BX220S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 220mm stroke, and a SUS304 stainless steel rod. Delivering 3927 N push force at 0.5 MPa via a G1/2 port, it is replaced by the SAI100BX220S. This direct upgrade retains the exact ISO 15552 mounting interface, bore, and stroke, fitting existing fixtures perfectly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL lock and BSAI clamp-lock variants absent in the SI line.
Airtac SI100 Standard Cylinder SI100BX220S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX220S |
| Bore size | Ø100 mm |
| Stroke | 220 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 SAI100BX220S 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 SAI100BX220S 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 SI100BX220S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×220 | 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 SI100BX220S Is Used
Heavy-Duty Pressing
Drives robust stamping and forming stations using the 3927 N push force at 0.5 MPa, with the SUS304 rod resisting washdown fluids.
Logistics Diverters
Actuates heavy package routing arms on high-speed sorters, where the adjustable 36mm air cushions absorb end-of-stroke kinetic energy.
Replacing the Airtac SI100 Standard Cylinder SI100BX220S with the SAI100BX220S
To replace the SI100BX220S, order the SAI100BX220S, confirming the ISO 15552 mounting interface, 100mm bore, 220mm stroke, G1/2 port, and mounting accessory. The -B denotes a SUS304 stainless rod for corrosion resistance, and -S indicates a piston magnet for CS1-B/DS1-B switches. Sizing both ways: a neighbouring 80mm bore yields 2513 N push at 0.5 MPa, while a 125mm bore yields 6136 N. Note that a plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 220mm stroke, guide side-loads to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX220S
- ✓ 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 SI100BX220S FAQ
Yes, the SI100BX220S is discontinued. The direct replacement is the SAI100BX220S. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 220mm stroke, G1/2 port, and mounting interface, so it drops directly into existing fixtures.
The G1/2 port is fixed by the 100mm bore. It delivers 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 SAI100BX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX220S replacement — usually within 7-8 hours.