This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X900TC, 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 SI100X900TC
The AirTAC SI100 Standard Cylinder SI100X900TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 900mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X900TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X900TC
- 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 SI100X900TC
The AirTAC SI100X900TC is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and a TC trunnion mount. Built for heavy-duty motion, it delivers 3927 N push force at 0.5 MPa through its G1/2 port. AirTAC replaced this legacy unit with the SAI100X900TC, a direct upgrade retaining the exact same 100mm bore, 900mm stroke, M20x1.5 rod thread, and mounting interface.
The SAI replacement introduces an upgraded piston seal utilizing two Y-shaped one-way elements for lower start-up pressure and extended life. Because this specific SI SKU lacks the -S magnet suffix, it cannot accept position sensors. Note that standard cylinders drift without live air; for secure holding, consider the SAIL or BSAI lock variants.
Airtac SI100 Standard Cylinder SI100X900TC Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X900TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X900TC |
| Bore size | Ø100 mm |
| Stroke | 900 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 SAI100X900TC 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 SAI100X900TC 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 SI100X900TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SI100X900TC Is Used
Heavy Material Transfer
Drives large pallets or heavy fixtures over 900mm along assembly lines, utilizing the 3927N push force at 0.5 MPa to move substantial loads smoothly.
Automated Storage Retrieval
Executes long horizontal reach strokes in automated warehousing systems, where the TC trunnion mount accommodates the required pivot articulation.
Large Press Feeding
Pushes heavy sheet metal blanks into forming presses, benefiting from the robust 25mm piston rod and 36mm adjustable cushions to handle abrupt deceleration.
Replacing the Airtac SI100 Standard Cylinder SI100X900TC with the SAI100X900TC
To replace the discontinued SI100X900TC, order the SAI100X900TC. Verify your TC trunnion mounting hardware, G1/2 port threads (PT, G, or NPT), and M20x1.5 rod end. This 100mm bore outputs 3927 N at 0.5 MPa; if undersizing, a neighboring 80mm bore provides 2513 N. Since this SKU has no -S magnet, you cannot mount legacy CS1-B/DS1-B sensors. At 900mm stroke, prevent rod bending by using an external guide to absorb side loads. The air cushion only decelerates the piston; it will not hold a load on air loss, so specify an external pilot check valve or the SAIL/BSAI lock variant if braking is required.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X900TC
- ✓ 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 SI100X900TC FAQ
Yes, the SI100X900TC is discontinued. The direct replacement is the SAI100X900TC. It is dimensionally interchangeable per the ISO 15552 mounting interface, keeping the same 100mm bore, 900mm stroke, G1/2 port, and TC trunnion mount.
This double-acting cylinder uses a G1/2 air port. It generates 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 theoretical force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X900TC
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