This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X200S, 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 SI100X200S
The AirTAC Airtac SI100 Standard Cylinder SI100X200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X200S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X200S
- 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 SI100X200S
The AirTAC SI100X200S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 200mm stroke. Delivering 3927N push force at 0.5MPa via a G1/2 port, it is replaced by the SAI100X200S. This direct upgrade shares identical ISO 15552 mounting dimensions, bore, stroke, force, port and accessories. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds SAIL, SAIF and BSAI lock variants the SI lacked.
The -S suffix denotes a magnetic piston for legacy CS1-B/DS1-B switches. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock or pilot check valve. You can also specify Viton H seals for high-temp environments.
Airtac SI100 Standard Cylinder SI100X200S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X200S |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAI100X200S 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 SAI100X200S 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 SI100X200S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×200 | 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 SI100X200S Is Used
Heavy-Duty Pressing
Applies the 3927N push force at 0.5MPa for seating bearings or assembling heavy mechanical components.
Material Diversion
Actuates large sorting gates or heavy diverters on high-throughput packaging lines.
Replacing the Airtac SI100 Standard Cylinder SI100X200S with the SAI100X200S
To replace the SI100X200S, order the SAI100X200S. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC), the 100mm bore, 200mm stroke, G1/2 port (PT/G/NPT), and the -S magnet for current AirTAC switches. For sizing, this bore yields 3927N push at 0.5MPa; dropping to an 80mm bore gives 2513N, while a 125mm bore provides 6136N. A plain 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. At 200mm stroke, rod bending is low, but for any stroke over 300mm, add guide rails to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X200S
- ✓ 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 SI100X200S FAQ
Yes, the SI100X200S is discontinued. The direct replacement is the SAI100X200S. It shares the same ISO 15552 mounting interface, 100mm bore, 200mm stroke, output force, G1/2 port and accessories, fitting existing fixtures perfectly.
The G1/2 port bore delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. It operates at 30-800mm/s with a 36mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X200S replacement — usually within 7-8 hours.