This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX220, 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 SI100BX220
The AirTAC SI100 Standard Cylinder SI100BX220 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 SAI100BX220, 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 → SAI100BX220
- 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 SI100BX220
The AirTAC SI100BX220 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 220 mm stroke. Built with an extruded aluminum barrel and adjustable air cushions, it delivers 3927 N push force at 0.5 MPa. This specific SKU features a SUS304 stainless steel rod and lacks a magnet, meaning it cannot accept position sensors. The direct replacement is the SAI100BX220, matching the bore, stroke, force, G1/2 port, and ISO 15552 mounting interface.
Upgrading to the SAI100BX220 retains the exact footprint but introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. If you need load holding on air loss, note that the standard cushion only decelerates; you must use an external rod lock or the SAIL/BSAI lock variants.
Airtac SI100 Standard Cylinder SI100BX220 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX220 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX220 |
| 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 SAI100BX220 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 SAI100BX220 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 SI100BX220
| 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 SI100BX220 Is Used
Heavy-Duty Pressing
Applies 5497 N of push force at 0.7 MPa for seating bearings and assembling heavy mechanical components.
Pallet Handling
Drives robust lifting and positioning mechanisms in automated storage systems requiring a 100 mm bore.
Product Diverting
Actuates heavy-duty diverters and sorting gates on high-throughput packaging lines.
Replacing the Airtac SI100 Standard Cylinder SI100BX220 with the SAI100BX220
To replace the discontinued SI100BX220, order the SAI100BX220. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the 220 mm stroke, and the G1/2 air port. Because this SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B switches; order a magnet-equipped SAI if sensing is needed. The 100 mm bore yields 3927 N push at 0.5 MPa; if undersized, the 125 mm bore offers 6136 N. Since the 220 mm stroke is under 300 mm, rod bending is minimal, but always guide external loads. For fail-safe load holding, select the SAIL or BSAI lock variant instead of relying on the cushion.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX220
- ✓ 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 SI100BX220 FAQ
Yes, the SI100BX220 is discontinued. The direct replacement is the SAI100BX220. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100 mm bore, 220 mm stroke, output force, and G1/2 port.
It features a G1/2 air port. At 0.5 MPa it provides 3927 N push and 3681 N pull force. At 0.7 MPa push 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 SAI100BX220
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX220 replacement — usually within 7-8 hours.