This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X700STC, 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 SI100X700STC
The AirTAC Airtac SI100 Standard Cylinder SI100X700STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X700STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X700STC
- 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 SI100X700STC
The AirTAC SI100X700STC is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 700mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X700STC, a direct upgrade retaining the exact ISO 15552 mounting interface, TC trunnion mount, and M20x1.5 rod thread.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. It also adds SAIL, SAIF, and BSAI variants absent from the SI line. The -S magnet works with legacy CS1-B/DS1-B sensors, while a Viton H seal option raises heat resistance to 150 C.
Airtac SI100 Standard Cylinder SI100X700STC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X700STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X700STC |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAI100X700STC 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 SAI100X700STC 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 SI100X700STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SI100X700STC Is Used
Heavy Material Transfer
Drives large pallets or heavy fixtures along roller conveyors, utilizing the 3927 N push force at 0.5 MPa to index components reliably.
Automated Warehousing
Actuates vertical lift gates or heavy pusher arms in storage systems, where the 700mm stroke provides the reach needed for multi-tier access.
Large Assembly Press
Positions heavy automotive or industrial sub-assemblies, taking advantage of the TC trunnion mount to accommodate pivoting load requirements.
Replacing the Airtac SI100 Standard Cylinder SI100X700STC with the SAI100X700STC
To replace the SI100X700STC, order the SAI100X700STC. It drops directly into existing fixtures via the ISO 15552 interface and TC trunnion mounting. Confirm the G1/2 port (PT/G/NPT), the 700mm stroke, and the -S magnet for current AirTAC switches. Sizing both ways: a neighbouring 80mm bore yields 2513 N push at 0.5 MPa, while this 100mm bore hits 5497 N at 0.7 MPa. Note that a plain cylinder drifts without live air; for load holding use an external pilot check valve or the SAIL/BSAI lock variants. Because 700mm exceeds 300mm, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X700STC
- ✓ 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 SI100X700STC FAQ
Yes, the SI100X700STC is discontinued. The direct replacement is the SAI100X700STC. It shares the identical ISO 15552 mounting interface, 100mm bore, 700mm stroke, G1/2 port, and TC trunnion hardware, fitting existing fixtures perfectly.
The G1/2 port feeds a 25mm rod delivering 3927 N push and 3681 N pull at 0.5 MPa. At 0.7 MPa push is 5497 N, and 7068 N at 0.9 MPa. The theoretical maximum force is 801 kgf at 1.0 MPa, operating at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X700STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X700STC replacement — usually within 7-8 hours.