This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X165SN, 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 SI100X165SN
The AirTAC Airtac SI100 Standard Cylinder SI100X165SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 165mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X165SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke165 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X165SN
- 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 SI100X165SN
The AirTAC SI100X165SN is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 165mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa via its G1/2 port. The direct successor is the SAI100X165SN, retaining identical mounting, force, and interface dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This SI unit features an NBR seal (-20 to +70C) and a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X165SN Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X165SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X165SN |
| Bore size | Ø100 mm |
| Stroke | 165 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 SAI100X165SN 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 SAI100X165SN 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 SI100X165SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×165 | 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 SI100X165SN Is Used
Heavy-Duty Pressing
Drives robust clamping and pressing jigs requiring up to 3927N of thrust at 0.5MPa within machining centers.
Replacing the Airtac SI100 Standard Cylinder SI100X165SN with the SAI100X165SN
To replace the SI100X165SN, order the SAI100X165SN direct: it matches the ISO 15552 mounting interface, 100mm bore, 165mm stroke, M20x1.5 rod thread, and G1/2 port. Confirm your mounting accessory (LB, FA, TC, etc.) and the -S magnet for current AirTAC switches. If sizing up or down, neighbouring bores (80mm / 125mm) change the 0.5MPa push force (2513N / 6136N). Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify the SAIL lock or BSAI clamp-lock variant, or use an external pilot check valve. The SAIF variant adds a built-in 4M valve for bores up to 100mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X165SN
- ✓ 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 SI100X165SN FAQ
Yes, the SI100X165SN is discontinued. The direct replacement is the SAI100X165SN. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 165mm stroke, output force, G1/2 port, and mounting interface, so it fits existing fixtures directly.
This double-acting cylinder uses a G1/2 port. It generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa. It operates at 30-800mm/s with a 36mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X165SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X165SN replacement — usually within 7-8 hours.