This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X800N, 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 SI100X800N
The AirTAC Airtac SI100 Standard Cylinder SI100X800N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 800mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X800N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X800N
- 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 SI100X800N
The AirTAC SI100X800N is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa, utilizing a G1/2 port and M20x1.5 rod thread. This NBR-sealed unit operates from -20 to +70 C. Because this SKU lacks a magnet, it cannot accept position sensors.
You must replace it with the SAI100X800N, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, force and port. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Airtac SI100 Standard Cylinder SI100X800N Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X800N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X800N |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAI100X800N 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 SAI100X800N 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 SI100X800N
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SI100X800N Is Used
Long-Stroke Material Transfer
Pushes heavy pallets or workpieces across an 800 mm gap with 3927 N of thrust at 0.5 MPa, relying on external guides to prevent rod bending.
Heavy Clamping Fixtures
Secures large components during machining using 801 kgf maximum theoretical force, taking advantage of the 36 mm adjustable air cushions at both ends.
Replacing the Airtac SI100 Standard Cylinder SI100X800N with the SAI100X800N
To replace the SI100X800N, order the SAI100X800N. Confirm your ISO 15552 mounting interface (LB, FA, TC, etc.), the G1/2 port, and the 800 mm stroke. Since this is a no-S SKU, it cannot take a sensor; if you need position feedback, order an SAI with the -S magnet option. For sizing both ways, the 100 mm bore yields 5497 N push at 0.7 MPa, while a neighbouring 80 mm bore gives 2513 N push at 0.5 MPa. Note that a plain cylinder drifts on air loss, as the 36 mm cushion only decelerates; use a pilot check valve or the SAIL/BSAI lock variant for load holding. Finally, at 800 mm stroke, prevent rod bending by using an external guide to absorb side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X800N
- ✓ 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 SI100X800N FAQ
Yes, the SI100X800N is discontinued. The direct replacement is the SAI100X800N. It shares the identical ISO 15552 mounting interface, 100 mm bore, 800 mm stroke, output force, and G1/2 port, fitting your existing fixtures perfectly while adding an upgraded piston seal.
This double-acting cylinder uses a G1/2 port. The force output is 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 maximum theoretical force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X800N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X800N replacement — usually within 7-8 hours.