This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X1520, 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 SI100X1520
The AirTAC Airtac SI100 Standard Cylinder SI100X1520 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1520mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X1520, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1520 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X1520
- 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 SI100X1520
The AirTAC SI100X1520 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1520mm stroke. Because 1520mm exceeds the 1500mm standard maximum for this bore, it is a non-standard, made-to-order length. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa via a G1/2 port. As this SKU lacks the -S magnet suffix, it cannot accept a magnetic sensor.
AirTAC replaced the SI line with the SAI family. The SAI100X1520 is the direct replacement, retaining the same ISO 15552 mounting interface, 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. Note that plain cylinders drift without live air; for load holding, consider the SAIL lock or BSAI clamp-lock variants.
Airtac SI100 Standard Cylinder SI100X1520 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X1520 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X1520 |
| Bore size | Ø100 mm |
| Stroke | 1520 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 SAI100X1520 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 SAI100X1520 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 SI100X1520
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1520 | 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 SI100X1520 Is Used
Long-Stroke Material Transfer
Pushes heavy pallets between machining centers over a 1520mm reach, utilizing the 3927 N thrust at 0.5 MPa while relying on external linear guides to prevent rod bending.
Large Assembly Press
Actuates heavy-duty clamping fixtures over a long distance, taking advantage of the 801 kgf maximum theoretical force at 1.0 MPa for rigid component seating.
Replacing the Airtac SI100 Standard Cylinder SI100X1520 with the SAI100X1520
To replace the SI100X1520, order the SAI100X1520. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the G1/2 port thread (PT, G, or NPT), and the M20x1.5 rod thread. Since this is a non-standard 1520mm stroke exceeding the 1500mm max, expect made-to-order lead times. At 1520mm, the Ø25mm rod is highly susceptible to bending under side loads—always use external guides to prevent rod damage and seal failure. Sizing alternatives: if less force is acceptable, an 80mm bore provides 2513 N push at 0.5 MPa; stepping up is not possible as 100mm is the largest 30-800 mm/s speed class before the 125mm bore. This non-magnetic SKU cannot take a sensor; if position detection is needed, order an SAI100X1520S and use current AirTAC switches. For load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants, as cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X1520
- ✓ 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 SI100X1520 FAQ
Yes, the SI100X1520 is discontinued. The direct replacement is the SAI100X1520. It shares the exact same ISO 15552 mounting interface, 100mm bore, 1520mm stroke, output force, and G1/2 port, fitting seamlessly into existing fixtures.
This 100mm bore cylinder features a G1/2 air port and an M20x1.5 rod thread. The thrust 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 SAI100X1520
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X1520 replacement — usually within 7-8 hours.