This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X750S, 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 SI100X750S
The AirTAC SI100 Standard Cylinder SI100X750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 750mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke750 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X750S
- 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 SI100X750S
The AirTAC SI100X750S is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 750 mm stroke. It delivers 3927 N push force at 0.5 MPa through a G1/2 port. The direct replacement is the SAI100X750S, retaining the same interface, output, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family adds SAIL, SAIF, and BSAI variants the SI lacked. This -S SKU uses CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100X750S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X750S |
| Bore size | Ø100 mm |
| Stroke | 750 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 SAI100X750S 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 SAI100X750S 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 SI100X750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×750 | 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 SI100X750S Is Used
Heavy Material Transfer
Drives large pallets or heavy fixtures along extended conveyor lines, utilizing the 3927 N push force to overcome inertia over the 750 mm travel.
Automated Warehousing
Actuates long-travel lifting or routing gates in distribution centers, where the ISO 15552 mounting interface ensures rigid fixture integration.
Large Part Machining
Positions heavy castings or large workpieces into machining centers, relying on the 100 mm bore's robust thrust and adjustable end cushions.
Replacing the Airtac SI100 Standard Cylinder SI100X750S with the SAI100X750S
To replace the SI100X750S, order the SAI100X750S. Verify the ISO 15552 mounting interface, 100 mm bore, 750 mm stroke, G1/2 port (PT/G/NPT), and mounting accessory. The -S magnet means it accepts CS1-B/DS1-B switches (SAI uses current AirTAC switches). Sizing both ways: a neighbouring 80 mm bore yields 2513 N [email protected], while a 125 mm bore yields 6136 N. For this 750 mm stroke, use external guides to prevent rod-bending side loads. A plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X750S
- ✓ 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 SI100X750S FAQ
Yes, the SI100X750S is discontinued. The direct replacement is the SAI100X750S. It is dimensionally interchangeable per ISO 15552, maintaining the same 100 mm bore, 750 mm stroke, output force, G1/2 port, and mounting accessories.
The bore is 100 mm with a G1/2 port. Force ratings 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 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 SAI100X750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X750S replacement — usually within 7-8 hours.