This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX190STC, 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 SI100BX190STC
The AirTAC Airtac SI100 Standard Cylinder SI100BX190STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 190mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX190STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX190STC
- 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 SI100BX190STC
The AirTAC SI100BX190STC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 190mm stroke, SUS304 stainless rod, and TC trunnion mount. Delivering 3927 N push force at 0.5 MPa, its direct replacement is the SAI100BX190STC, retaining the exact G1/2 port, M20x1.5 thread, and mounting interface.
The SAI upgrade features an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the legacy line.
Airtac SI100 Standard Cylinder SI100BX190STC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX190STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX190STC |
| Bore size | Ø100 mm |
| Stroke | 190 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 SAI100BX190STC 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 SAI100BX190STC 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 SI100BX190STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×190 | 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 SI100BX190STC Is Used
Heavy-Duty Pressing
Applies up to 5497 N at 0.7 MPa for seating bearings and assembling heavy components in automated machinery.
Pallet Diversion
Uses the TC trunnion mount to handle lateral loads while pushing heavy pallets onto secondary packaging lines.
Replacing the Airtac SI100 Standard Cylinder SI100BX190STC with the SAI100BX190STC
To replace the SI100BX190STC, order the SAI100BX190STC. Verify the ISO 15552 TC trunnion interface, 190mm stroke, G1/2 port, and the -S magnet for current AirTAC switches (legacy used CS1-B/DS1-B). The -B rod is SUS304 stainless steel; default is carbon steel. If downsizing, a 80mm bore yields 2513 N push at 0.5 MPa; if upsizing, a 125mm bore provides 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX190STC
- ✓ 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 SI100BX190STC FAQ
Yes, the SI100BX190STC is discontinued. The direct replacement is the SAI100BX190STC. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 190mm stroke, G1/2 port, and TC mount so it fits existing fixtures.
It features a G1/2 air port. The 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 max of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX190STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX190STC replacement — usually within 7-8 hours.