This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX600S, 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 SI100AX600S
The AirTAC Airtac SI100 Standard Cylinder SI100AX600S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 600mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX600S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX600S
- 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 SI100AX600S
The AirTAC SI100AX600S is a discontinued double-acting ISO 15552 profile cylinder featuring a 100mm bore, 600mm stroke, and a SUS420J2 stainless steel rod. Delivering 3927 N push force at 0.5 MPa, it is superseded by the SAI100AX600S direct replacement. This upgrade retains the exact G1/2 port, M20x1.5 thread, and ISO 15552 mounting interface for seamless fixture integration.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The built-in magnet supports legacy CS1-B/DS1-B sensors, while SAIL lock and BSAI clamp-lock variants cover load-holding needs the original lacked.
Airtac SI100 Standard Cylinder SI100AX600S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX600S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX600S |
| Bore size | Ø100 mm |
| Stroke | 600 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 SAI100AX600S 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 SAI100AX600S 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 SI100AX600S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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 SI100AX600S Is Used
Heavy Stamping Press
Drives large platens and stamping dies requiring 3927 N push force at 0.5 MPa, utilizing the adjustable 36mm cushion to absorb end-of-stroke impact.
Corrosive Fluid Handling
Actuates diverter gates in washdown zones using the SUS420J2 stainless piston rod option to resist rust and chemical exposure.
Replacing the Airtac SI100 Standard Cylinder SI100AX600S with the SAI100AX600S
To replace the SI100AX600S, order the SAI100AX600S. Verify the ISO 15552 mounting interface, 100mm bore, 600mm stroke, G1/2 port, and magnet (-S) for CS1-B/DS1-B switches. The SUS420J2 stainless rod (-A) resists corrosion. If sizing up or down, neighbor bores 80mm and 125mm offer different force classes; at 0.5 MPa this 100mm bore yields 3927 N push and 3681 N pull. For the 600mm stroke, use external guides to prevent rod-bending side loads. Remember the air cushion only decelerates; it does not hold load on air loss. For secure holding, specify the SAIL or BSAI lock variant, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX600S
- ✓ 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 SI100AX600S FAQ
Yes, the SI100AX600S is discontinued. The direct replacement is the SAI100AX600S. It shares the identical ISO 15552 mounting interface, 100mm bore, 600mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
It features a G1/2 air port and provides 3927 N push / 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. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX600S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX600S replacement — usually within 7-8 hours.