This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X750H, 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 SI100X750H
The AirTAC SI100 Standard Cylinder SI100X750H 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 SAI100X750H, 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 → SAI100X750H
- 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 SI100X750H
The AirTAC SI100X750H is a discontinued double-acting ISO 15552 profile cylinder featuring a 100 mm bore, 750 mm stroke, G1/2 port, and Viton H high-temperature seals (0 to 150 C). Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100X750H. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, and output force, fitting existing fixtures perfectly.
The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks a magnet and cannot take a sensor. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SI100 Standard Cylinder SI100X750H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X750H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X750H |
| 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 SAI100X750H 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 SAI100X750H 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 SI100X750H
| 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 SI100X750H Is Used
Long-Stroke Diversion
Pushes heavy pallets across 750 mm transfer lines using 3927 N force at 0.5 MPa, requiring external guides to prevent rod bending.
High-Temperature Forming
Actuates press doors in 0-150 C environments using Viton H seals, where standard NBR cylinders would degrade.
Replacing the Airtac SI100 Standard Cylinder SI100X750H with the SAI100X750H
To replace the SI100X750H, order the SAI100X750H. Confirm the ISO 15552 mounting interface, the G1/2 port, and your mounting accessory (LB, FA, TC, etc.). Because this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors. The 750 mm stroke demands attention: use external guides to prevent rod bending and side-load damage. Sizing both ways: the 100 mm bore yields 3927 N push at 0.5 MPa (80 mm gives 2513 N). For dead-load holding, note the air cushion only decelerates; add a pilot check valve, external rod lock, or the SAIL/BSAI lock variant. The SAI family also adds the SAIF self-valve (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X750H
- ✓ 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 SI100X750H FAQ
Yes, the SI100X750H is discontinued. The direct replacement is the SAI100X750H. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 750 mm stroke, G1/2 port, and mounting interface.
The G1/2 port bore delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N 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 SAI100X750H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X750H replacement — usually within 7-8 hours.