This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X215, 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.
The AirTAC Airtac SI100 Standard Cylinder SI100X215 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 215mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X215, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X215 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 215 mm stroke. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa, operating through a G1/2 port. The direct replacement is the SAI100X215, which maintains the exact same ISO 15552 mounting interface, output force, and accessories.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note that this specific SKU lacks the -S magnet, meaning it cannot accept CS1-B or DS1-B sensors.
| Model | Airtac SI100 Standard Cylinder SI100X215 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X215 |
| Bore size | Ø100 mm |
| Stroke | 215 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 SAI100X215 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X215 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×215 | 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).
Drives substantial forming and stamping presses requiring up to 3927 N of push force at 0.5 MPa, ensuring reliable clamping on medium-duty production lines.
Pushes heavy bulk containers across transfer stations with a 215 mm travel distance, utilizing the adjustable 36 mm air cushions to decelerate loads smoothly.
To replace the discontinued SI100X215, order the SAI100X215. Verify your ISO 15552 mounting fixtures (LB, FA, CA, TC, etc.), the 215 mm stroke, and the G1/2 port. Because this stroke is non-standard (exceeding the 200 mm standard increment but under the 1500 mm max), ensure your inventory matches. As the stroke is over 200 mm, account for side-load and rod-bending moments by using guide rails to prevent premature wear. Sizing options: if less force is needed, an 80 mm bore provides 2513 N push at 0.5 MPa; if more is required, a 125 mm bore yields 6136 N. This plain cylinder lacks a magnet and cannot take sensors. For load holding on air loss, use an external rod lock or pilot check valve, or explore the SAIL or BSAI lock variants.
Replacement checklist
Yes, the SI100X215 is discontinued. The direct replacement is the AirTAC SAI100X215. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100 mm bore, 215 mm stroke, G1/2 port, and output force.
The 100 mm bore cylinder operates at 30-800 mm/s. 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 force of 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X215 replacement — usually within 7-8 hours.