This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX190S, 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 SI100AX190S
The AirTAC Airtac SI100 Standard Cylinder SI100AX190S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 190mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX190S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX190S
- 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 SI100AX190S
The AirTAC SI100AX190S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 190mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa via a G1/2 port. The direct replacement is the SAI100AX190S, retaining identical ISO 15552 mounting dimensions, force, and stroke.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. The -A rod is SUS420J2 stainless steel, and the -S magnet works with legacy CS1-B/DS1-B sensors. For higher heat, Viton H seals raise the temperature limit to 0-150C. The air cushion only decelerates; it does not hold loads on air loss without a SAIL lock or pilot check valve.
Airtac SI100 Standard Cylinder SI100AX190S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX190S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX190S |
| Bore size | Ø100 mm |
| Stroke | 190 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 SAI100AX190S 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 SAI100AX190S 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 SI100AX190S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×190 | 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 SI100AX190S Is Used
Heavy-Duty Pressing
Drives large metal stamping and pin insertion tasks using 3927N of push force at 0.5MPa with stable ISO 15552 mounting.
Pallet Diverting
Actuates heavy pallet stops and routing gates on high-throughput packaging lines requiring a 190mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100AX190S with the SAI100AX190S
To replace the SI100AX190S, order the SAI100AX190S. Confirm the ISO 15552 mounting fixture, 100mm bore, 190mm stroke, G1/2 port, and -S magnet for CS1-B/DS1-B switches. The -A code specifies the SUS420J2 stainless rod, replacing the standard carbon steel. Sizing both ways: the neighboring 80mm bore yields 2513N push at 0.5MPa, while the 125mm bore yields 6136N. This 100mm bore provides 3927N push at 0.5MPa (5497N at 0.7MPa). Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, specify the SAIL lock, BSAI clamp-lock, or an external pilot check valve. Because the 190mm stroke is under 300mm, side-load rod-bending risks are minimal, but standard guide considerations apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX190S
- ✓ 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 SI100AX190S FAQ
Yes, the SI100AX190S is discontinued. The direct replacement is the SAI100AX190S. It is dimensionally interchangeable per ISO 15552, keeping the same 100mm bore, 190mm stroke, G1/2 port, and mounting interface. The SAI features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. The -S magnet works with legacy CS1-B/DS1-B switches, though the SAI family uses current AirTAC switches. The -A denotes a SUS420J2 stainless rod. The SAI family also adds SAIL, SAIF, and BSAI variants the SI lacked. The air cushion only decelerates; use a SAIL lock or external pilot check valve to hold loads on air loss. The cushion only decelerates; it does not hold loads on air loss without a SAIL lock or pilot check valve.
This double-acting cylinder has a G1/2 port, a 25mm piston rod with an M20x1.5 thread, and a 36mm adjustable air cushion at each end. Theoretical forces are: push 3927N and pull 3681N at 0.5MPa; push 5497N at 0.7MPa; push 7068N at 0.9MPa; and a maximum of 801kgf at 1.0MPa. Operating speed is 30-800mm/s. The -A rod is SUS420J2 stainless steel, and Viton H seals can raise the temperature limit from -20 to +70C up to 0-150C.
Related AirTAC SAI Cylinders
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