This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1425N, 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 SI100X1425N
The AirTAC SI100 Standard Cylinder SI100X1425N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1425mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1425N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1425 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1425N
- 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 SI100X1425N
The AirTAC SI100X1425N is a discontinued double-acting ISO 15552 profile cylinder with a 1425 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. Because this SKU lacks the -S magnet, it cannot accept a position switch. The NBR (-N) seal supports a -20 to +70 C operating range.
You must order the direct replacement SAI100X1425N. It shares the exact ISO 15552 mounting interface, bore, stroke, and force. The SAI upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure, and introduces SAIL, SAIF, and BSAI lock variants the SI lacked. For this 1425 mm stroke, use external guides to prevent rod bending.
Airtac SI100 Standard Cylinder SI100X1425N Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1425N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1425N |
| Bore size | Ø100 mm |
| Stroke | 1425 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 SAI100X1425N 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 SAI100X1425N 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 SI100X1425N
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1425 | 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 SI100X1425N Is Used
Long-Stroke Material Transfer
Drives heavy pallets across extended conveyor sections, utilizing the 3927 N push force at 0.5 MPa to overcome friction over the 1425 mm travel.
Large Door Actuation
Opens and closes heavy industrial machinery safety doors, relying on the 36 mm adjustable air cushions at both ends to decelerate the substantial moving mass.
Replacing the Airtac SI100 Standard Cylinder SI100X1425N with the SAI100X1425N
To replace the SI100X1425N, order the SAI100X1425N. Verify your ISO 15552 mounting fixtures (LB, FA, CA, TC), the G1/2 port, and M20x1.5 rod thread. Since this is a non-magnet SKU, it cannot support CS1-B/DS1-B sensors; add an external switch if needed. The 1425 mm stroke demands external guides to manage side-load and rod-bending risks. For sizing, the 80 mm bore yields 2513 N [email protected], while the 125 mm bore yields 6136 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1425N
- ✓ 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 SI100X1425N FAQ
Yes, the AirTAC SI100X1425N is discontinued. The direct replacement is the SAI100X1425N. It features the same ISO 15552 mounting interface, 100 mm bore, 1425 mm stroke, output force, and G1/2 port, fitting directly into your existing fixtures.
This double-acting cylinder uses a G1/2 port. The thrust ratings are: 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 of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X1425N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1425N replacement — usually within 7-8 hours.