This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X75TC, 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 SI100X75TC
The AirTAC Airtac SI100 Standard Cylinder SI100X75TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X75TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke75 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X75TC
- 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 SI100X75TC
The AirTAC SI100X75TC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 75mm stroke. Delivering 3927N push force at 0.5MPa through a G1/2 port, it is directly replaced by the SAI100X75TC. This direct upgrade matches the exact ISO 15552 mounting interface, TC trunnion accessory, and output force.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Since this specific SI SKU lacks the -S magnet, it cannot accept a CS1-B or DS1-B sensor.
Airtac SI100 Standard Cylinder SI100X75TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X75TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X75TC |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAI100X75TC 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 SAI100X75TC 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 SI100X75TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×75 | 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 SI100X75TC Is Used
Heavy-Duty Clamping
Secures large steel weldments during machining, using the 3927N push force to prevent deflection under cutting loads.
Pallet Diversion
Actuates a TC-mounted diverter arm on a high-throughput packaging line to route heavy pallets efficiently.
Replacing the Airtac SI100 Standard Cylinder SI100X75TC with the SAI100X75TC
To replace the SI100X75TC, order the SAI100X75TC and confirm the ISO 15552 TC trunnion mount, 75mm stroke, and G1/2 port. Because this SKU has no -S suffix, it cannot support magnetic sensing. If you need to downsize, the 80mm bore yields 2513N push at 0.5MPa; if you need more force, the 125mm bore offers 6136N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or step up to the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X75TC
- ✓ 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 SI100X75TC FAQ
Yes, the AirTAC SI100X75TC is discontinued. The direct replacement is the SAI100X75TC, which shares the identical ISO 15552 mounting interface, 100mm bore, 75mm stroke, G1/2 port, and TC trunnion mount.
The 100mm bore features a G1/2 port and M20x1.5 rod thread. It generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, and a theoretical maximum of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X75TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X75TC replacement — usually within 7-8 hours.