This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX1000, 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 SI100AX1000
The AirTAC Airtac SI100 Standard Cylinder SI100AX1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX1000, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100AX1000
- 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 SI100AX1000
The AirTAC SI100AX100A is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 1000mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa via a G1/2 port. The direct replacement is the SAI100AX1000, matching the interface, force, and mounting. The SAI uses an upgraded piston seal with two Y-shaped elements for low start-up pressure and long life. The -A rod denotes SUS420J2 stainless steel for corrosion resistance versus standard carbon steel. As a no-S SKU, it lacks a magnet and cannot take a sensor.
The SAI family adds variants the SI lacked: SAIL air-released lock, SAIF built-in 4M valve, and BSAI clamp-lock. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For held loads, use SAIL, BSAI, or an external pilot check valve. The 1000mm stroke requires external guides to prevent rod bending under side loads.
Airtac SI100 Standard Cylinder SI100AX1000 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100AX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX1000 |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAI100AX1000 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 SAI100AX1000 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 SI100AX1000
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1000 | 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 SI100AX1000 Is Used
Long-Stroke Material Transfer
Pushes heavy pallets 1000mm between conveyor lines using 3927N force at 0.5MPa, requiring external guides to manage rod bending over the extended length.
Large Assembly Press
Provides 5497N push at 0.7MPa to seat large components, relying on the adjustable 36mm air cushions to decelerate the payload at stroke end.
Replacing the Airtac SI100 Standard Cylinder SI100AX1000 with the SAI100AX1000
To replace the SI100AX1000, order the SAI100AX1000. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC), the 100mm bore, 1000mm stroke, G1/2 port, and SUS420J2 stainless rod (-A). This SKU has no magnet, so CS1-B/DS1-B sensors will not work. For sizing, the 100mm bore yields 3927N push at 0.5MPa; dropping to an 80mm bore gives 2513N. If you need more force, 1.0MPa yields 801kgf. Because this is a 1000mm stroke, use external guides to prevent rod bending. A plain cylinder does not hold load without air; for load holding, select the SAIL lock or BSAI clamp-lock variant, or add an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100AX1000
- ✓ 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 SI100AX1000 FAQ
Yes, the SI100AX1000 is discontinued. The direct replacement is the SAI100AX1000. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 1000mm stroke, G1/2 port, force, and mounting fixtures.
The G1/2 port supplies 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a maximum theoretical force of 801kgf at 1.0MPa. The speed range is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100AX1000
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX1000 replacement — usually within 7-8 hours.