This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1150STC, 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 SI100X1150STC
The AirTAC SI100 Standard Cylinder SI100X1150STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1150STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1150STC
- 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 SI100X1150STC
The AirTAC SI100X1150STC is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 1150 mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa. The direct replacement is the SAI100X1150STC, matching the interface, force, G1/2 port and TC trunnion mount. This is a nonstandard 1150 mm stroke within the 1500 mm maximum.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The SAI family adds SAIL, SAIF and BSAI variants. The -S magnet works with CS1-B/DS1-B sensors, and rod options include SUS420J2 or SUS304.
Airtac SI100 Standard Cylinder SI100X1150STC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1150STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1150STC |
| Bore size | Ø100 mm |
| Stroke | 1150 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 SAI100X1150STC 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 SAI100X1150STC 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 SI100X1150STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1150 | 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 SI100X1150STC Is Used
Long-Stroke Material Transfer
Drives heavy pallets across wide conveyor sections, utilizing the 3927 N push force at 0.5 MPa to shift loads over the full 1150 mm travel distance.
Large Assembly Line Indexing
Indexes heavy machinery frames between manufacturing stations, relying on the TC trunnion mount to accommodate the long 1150 mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X1150STC with the SAI100X1150STC
To replace the SI100X1150STC, order the SAI100X1150STC. Confirm the ISO 15552 TC trunnion interface, 100 mm bore, 1150 mm stroke, G1/2 port (PT/G/NPT threads) and the -S magnet for CS1-B/DS1-B switches. If you need less force, a 80 mm bore gives 2513 N push at 0.5 MPa; if you need more, a 125 mm bore gives 6136 N. For load holding on air loss, note this plain cylinder drifts; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 1150 mm, prevent rod bending by using an external guide to absorb side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1150STC
- ✓ 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 SI100X1150STC FAQ
Yes, the SI100X1150STC is discontinued. The direct replacement is the SAI100X1150STC. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 1150 mm stroke, force, G1/2 port and TC mounting interface.
This double-acting cylinder has a G1/2 port. It delivers 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 maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1150STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1150STC replacement — usually within 7-8 hours.