This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X300CA, 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 SI100X300CA
The AirTAC Airtac SI100 Standard Cylinder SI100X300CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 300mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X300CA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X300CA
- 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 SI100X300CA
The AirTAC SI100X300CA is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 300 mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa, utilizing a G1/2 port and M20x1.5 rod thread. AirTAC replaced this legacy unit with the SAI100X300CA, a direct upgrade retaining the exact ISO 15552 mounting interface, CA clevis mount, and force ratings.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Because this specific SI SKU lacks the -S magnet suffix, it cannot accept position sensors like the legacy CS1-B or DS1-B switches.
Airtac SI100 Standard Cylinder SI100X300CA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X300CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X300CA |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAI100X300CA 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 SAI100X300CA 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 SI100X300CA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SI100X300CA Is Used
Heavy-Duty Pressing
Applies up to 5497 N of force at 0.7 MPa for seating bearings, stamping light components, or assembling heavy mechanical assemblies.
Pallet Diversion
Uses the CA clevis mount to pivot heavy lane deflector gates on high-throughput packaging and material handling conveyor lines.
Vertical Lift Gates
Lifts or lowers access gates and material stops up to 200 kg safely, provided external load guides are fitted to manage the 300 mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X300CA with the SAI100X300CA
To replace the SI100X300CA, order the SAI100X300CA. Confirm the ISO 15552 CA clevis mounting interface, the 300 mm stroke, and the G1/2 port (available in PT, G, or NPT threads). Since this SKU has no -S magnet, it cannot support sensing; if switches are needed, specify an SAI model with the magnet option. Sizing checks: the 100 mm bore yields 3927 N push at 0.5 MPa (80 mm bore offers 2513 N, 125 mm offers 6136 N). For the 300 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X300CA
- ✓ 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 SI100X300CA FAQ
Yes, the SI100X300CA is discontinued. The direct replacement is the SAI100X300CA. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 300 mm stroke, G1/2 port, CA clevis mount, and force output.
It operates at 30-800 mm/s with a 36 mm adjustable air cushion at both ends. Theoretical forces are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a maximum of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X300CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X300CA replacement — usually within 7-8 hours.