This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1150, 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 SI100X1150
The AirTAC SI100 Standard Cylinder SI100X1150 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 SAI100X1150, 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 → SAI100X1150
- 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 SI100X1150
The AirTAC SI100X1150 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1150mm stroke. It delivers a push force of 3927N at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X1150, matching the interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot take a sensor.
Airtac SI100 Standard Cylinder SI100X1150 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1150 |
| 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 SAI100X1150 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 SAI100X1150 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 SI100X1150
| 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 SI100X1150 Is Used
Long-Stroke Ejection
Pushes heavy molded parts or pallets over 1150mm distances where the full 3927N output ensures reliable ejection despite friction.
Material Lowering
Acts as a controlled descent damper for heavy fixtures, using its adjustable 36mm cushions to decelerate loads near the stroke end.
Pallet Transfer
Shifts loaded pallets between conveyor lines, utilizing the 100mm bore's substantial thrust to overcome inertia on startup.
Replacing the Airtac SI100 Standard Cylinder SI100X1150 with the SAI100X1150
To replace the SI100X1150, order the SAI100X1150. Confirm the ISO 15552 mounting interface, the G1/2 port, and your mounting accessory (LB, FA, TC, etc.). Because this 1150mm stroke exceeds 300mm, use external guides to prevent rod bending and side-load damage. The plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Neighbouring bores: an 80mm gives 2513N push, while a 125mm gives 6136N at 0.5MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1150
- ✓ 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 SI100X1150 FAQ
Yes, the SI100X1150 is discontinued. The direct replacement is the SAI100X1150. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 1150mm stroke, force, G1/2 port, and mounting fixtures.
This double-acting cylinder uses a G1/2 port. It generates a push force of 3927N and a pull force of 3681N at 0.5MPa. At 0.7MPa push is 5497N, at 0.9MPa it is 7068N, and the theoretical maximum is 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1150
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1150 replacement — usually within 7-8 hours.