This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1700STC, 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 SI100X1700STC
The AirTAC Airtac SI100 Standard Cylinder SI100X1700STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1700STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1700STC
- 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 SI100X1700STC
The AirTAC SI100X1700STC is a discontinued double-acting ISO 15552 profile cylinder featuring a 100mm bore, 1700mm stroke, G1/2 port, and TC trunnion mount. Delivering 3927 N push force at 0.5 MPa, this legacy unit is replaced by the SAI100X1700STC. The SAI is a direct upgrade: identical ISO 15552 mounting interface, bore, stroke, output force, and port size, fitting your existing fixtures perfectly.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note the 1700mm stroke is non-standard (exceeding the 1500mm max), requiring external guides to prevent rod bending. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI100 Standard Cylinder SI100X1700STC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1700STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1700STC |
| Bore size | Ø100 mm |
| Stroke | 1700 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 SAI100X1700STC 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 SAI100X1700STC 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 SI100X1700STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1700 | 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 SI100X1700STC Is Used
Long-Stroke Material Transfer
Drives large pallets across extended conveyor sections, utilizing the 3927 N push force to shift heavy assemblies over the full 1700mm travel distance.
Large Fixture Actuation
Deploys heavy machining fixtures along extended axes, relying on the TC trunnion mount to accommodate pivot alignment over long strokes.
Replacing the Airtac SI100 Standard Cylinder SI100X1700STC with the SAI100X1700STC
To replace the SI100X1700STC, order the SAI100X1700STC. Confirm the ISO 15552 TC trunnion interface, 100mm bore, 1700mm non-standard stroke, G1/2 port, and the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Sizing options: a neighbouring 80mm bore yields 2513 N push @0.5 MPa, while a 125mm bore offers 6136 N. Because 1700mm exceeds the 1500mm standard, add external guides to prevent rod bending under side loads. A plain cylinder drifts without air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1700STC
- ✓ 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 SI100X1700STC FAQ
Yes, the AirTAC SI100X1700STC is discontinued. The direct replacement is the SAI100X1700STC. It shares the same ISO 15552 mounting interface, 100mm bore, 1700mm stroke, force, and G1/2 port, fitting existing fixtures directly.
The G1/2 port bore delivers a push of 3927 N and pull of 3681 N at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a max force of 801 kgf at 1.0 MPa. The 1700mm stroke is non-standard (exceeding the 1500mm max) and requires external guides to prevent rod bending.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1700STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1700STC replacement — usually within 7-8 hours.