This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X65S, 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 SI100X65S
The AirTAC Airtac SI100 Standard Cylinder SI100X65S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 65mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X65S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X65S
- 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 SI100X65S
The AirTAC SI100X65S is a discontinued double-acting ISO 15552 profile cylinder. Delivering 3927 N push force at 0.5 MPa through a 100 mm bore, it features a G1/2 port and an integrated piston magnet for position sensing. The direct replacement is the SAI100X65S, matching the exact stroke, force, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI100 Standard Cylinder SI100X65S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X65S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X65S |
| Bore size | Ø100 mm |
| Stroke | 65 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 SAI100X65S 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 SAI100X65S 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 SI100X65S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×65 | 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 SI100X65S Is Used
Heavy Press Clamping
Applies the 3927 N push force at 0.5 MPa to secure heavy metal components during machining or stamping operations.
Pallet Diverting
Handles robust diverting of heavy loaded pallets along production lines using the 65 mm stroke and high thrust capacity.
Material Lift Gates
Actuates large access gates or lifting mechanisms where a 200 kg vertical lift margin ensures reliable movement.
Replacing the Airtac SI100 Standard Cylinder SI100X65S with the SAI100X65S
To replace this SI100X65S, order the SAI100X65S keeping the identical 100 mm bore, 65 mm stroke, G1/2 port, and ISO 15552 mounting fixtures. Confirm your thread option (PT, G, or NPT) and the -S magnet for legacy CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). If sizing up or down, note the 80 mm bore yields 2513 N push while the 125 mm bore yields 6136 N at 0.5 MPa. For load holding on air loss, the standard cushion only decelerates; specify an external pilot check valve or the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X65S
- ✓ 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 SI100X65S FAQ
Yes, the SI100X65S is discontinued. The direct replacement is the SAI100X65S, offering the same ISO 15552 mounting interface, 100 mm bore, 65 mm stroke, output force, and G1/2 port.
This double-acting cylinder has a G1/2 port and delivers 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 theoretical max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X65S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X65S replacement — usually within 7-8 hours.