This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X175TC, 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 SI100X175TC
The AirTAC Airtac SI100 Standard Cylinder SI100X175TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 175mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X175TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X175TC
- 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 SI100X175TC
The AirTAC SI100X175TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 175mm stroke, and TC trunnion mount. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100X175TC. This direct successor matches the G1/2 port, M20x1.5 rod thread, and 36mm cushions, fitting existing fixtures perfectly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. Note this non-magnetic SKU cannot take a sensor; legacy -S versions used CS1-B/DS1-B switches.
Airtac SI100 Standard Cylinder SI100X175TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X175TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X175TC |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAI100X175TC 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 SAI100X175TC 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 SI100X175TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SI100X175TC Is Used
Heavy Press Clamping
Applies 3927 N of push force at 0.5 MPa to secure heavy metal housings during machining operations.
Package Diverting
Pushes heavy industrial cartons across conveyor lines at speeds up to 800 mm/s without needing position sensing.
Replacing the Airtac SI100 Standard Cylinder SI100X175TC with the SAI100X175TC
To replace the SI100X175TC, order the SAI100X175TC. Verify the ISO 15552 TC trunnion interface, 100mm bore, 175mm stroke, G1/2 port (PT/G/NPT thread options), and carbon steel rod. Because this SKU lacks the -S magnet, it cannot accept a magnetic switch. If you need higher force, the neighboring 125mm bore yields 6136 N push at 0.5 MPa; if lower force is acceptable, the 80mm bore provides 2513 N. A plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variant. The 175mm stroke is short, so side-load risks are minimal, but always ensure smooth guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X175TC
- ✓ 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 SI100X175TC FAQ
Yes, the SI100X175TC is discontinued. The direct replacement is the SAI100X175TC. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 175mm stroke, G1/2 port, and TC mounting interface. You simply order the SAI equivalent.
The bore is 100mm with a G1/2 air port and M20x1.5 rod thread. Force output is 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 SAI100X175TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X175TC replacement — usually within 7-8 hours.