This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X210, 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 SI100X210
The AirTAC Airtac SI100 Standard Cylinder SI100X210 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 210mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X210, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke210 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X210
- 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 SI100X210
The AirTAC SI100X210 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 210mm stroke, delivering 3927N push force at 0.5MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X210, a direct upgrade retaining the exact interface, output, and mounting dimensions.
The SAI100X210 features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X210 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X210 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X210 |
| Bore size | Ø100 mm |
| Stroke | 210 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 SAI100X210 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 SAI100X210 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 SI100X210
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×210 | 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 SI100X210 Is Used
Press Tool Ejection
Provides the 3927N push at 0.5MPa needed to positively eject heavy formed parts from machining fixtures.
Pallet Diverting
Drives robust routing gates on high-throughput assembly lines, moving loaded pallets with a 210mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X210 with the SAI100X210
To replace the SI100X210, order the SAI100X210 and confirm the ISO 15552 mounting interface, 100mm bore, 210mm stroke, and G1/2 port (PT/G/NPT thread options). Because this SKU has no magnet, it cannot support position sensing; if you need switches, specify the SAI100X210S instead. For sizing, a neighbouring 80mm bore yields 2513N push at 0.5MPa, while a 125mm bore yields 6136N. Remember that a standard cylinder drifts on air loss—the cushion only decelerates near stroke end—so use an external pilot check valve or the SAIL/BSAI lock variant for held loads. At 210mm stroke, rod-bending side loads are minimal, but always guide the payload to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X210
- ✓ 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 SI100X210 FAQ
Yes, the SI100X210 is discontinued. The direct replacement is the SAI100X210, which shares the same ISO 15552 mounting interface, 100mm bore, 210mm stroke, force, and G1/2 port.
This double-acting cylinder uses a G1/2 port. It 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X210
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X210 replacement — usually within 7-8 hours.