This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X282S, 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 SI100X282S
The AirTAC SI100 Standard Cylinder SI100X282S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 282mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X282S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke282 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X282S
- 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 SI100X282S
The AirTAC SI100X282S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 282mm stroke, and a G1/2 port. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100X282S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, and force. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix denotes a piston magnet for CS1-B/DS1-B sensors; the SAI uses current AirTAC switches.
The SAI family adds variants the SI lacked, like the SAIL air-released lock and BSAI clamp-lock. Note that 282mm is a nonstandard stroke. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use SAIL, BSAI, or an external pilot check valve. Viton H seals raise the temperature range to 0-150 C.
Airtac SI100 Standard Cylinder SI100X282S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X282S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X282S |
| Bore size | Ø100 mm |
| Stroke | 282 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 SAI100X282S 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 SAI100X282S 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 SI100X282S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×282 | 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 SI100X282S Is Used
Heavy Press Clamping
Secures heavy automotive stampings with 3927 N of push force at 0.5 MPa, utilizing the 282mm stroke to clear large tooling beds.
Pallet Diverting
Actuates heavy-duty routing gates on high-throughput packaging lines, handling the kinetic impact via the 36mm adjustable air cushions.
Replacing the Airtac SI100 Standard Cylinder SI100X282S with the SAI100X282S
To replace the discontinued SI100X282S, order the SAI100X282S. Verify the ISO 15552 mounting interface, 100mm bore, 282mm nonstandard stroke, G1/2 port, and mounting accessory. The -S magnet carries over. If you need more force, the 125mm bore offers 6136 N push at 0.5 MPa; if less, the 80mm bore provides 2513 N. Because the 282mm stroke exceeds 300mm? No, but at 282mm you should still evaluate side-load and rod-bending forces, using guide rails to prevent premature seal wear. A standard cylinder does not hold load without live air; the cushion only decelerates. For secure holding, specify the SAIL lock, BSAI clamp-lock, or an external pilot check valve. The SAIF variant (bores 32-100) integrates a 4M valve if space is tight.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X282S
- ✓ 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 SI100X282S FAQ
Yes, the SI100X282S is discontinued. The direct replacement is the SAI100X282S. It shares the same ISO 15552 mounting interface, 100mm bore, 282mm stroke, output force, G1/2 port, and mounting accessories, fitting directly into existing fixtures.
This double-acting cylinder has a 25mm rod, M20x1.5 thread, and a G1/2 port. Force 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 max of 801 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X282S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X282S replacement — usually within 7-8 hours.