This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X80H, 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 SI100X80H
The AirTAC Airtac SI100 Standard Cylinder SI100X80H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X80H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X80H
- 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 SI100X80H
The AirTAC SI100X80H is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and a Viton H high-temperature seal (0 to 150 C). Delivering 3927 N push force at 0.5 MPa through a G1/2 port, it is replaced by the SAI100X80H. This direct successor matches the exact bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SKU lacks a magnet and cannot take a sensor. The SAI family also adds lock and valve variants the SI lacked.
Airtac SI100 Standard Cylinder SI100X80H Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X80H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X80H |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAI100X80H 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 SAI100X80H 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 SI100X80H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SI100X80H Is Used
Heavy-Duty Pressing
Applies the 3927 N push force at 0.5 MPa to seat bearings or form light-gauge materials in automated fabrication cells.
High-Temperature Actuation
Leverages the Viton H seal to reliably cycle 80 mm strokes in hot environments up to 150 C near ovens or drying tunnels.
Replacing the Airtac SI100 Standard Cylinder SI100X80H with the SAI100X80H
To replace the SI100X80H, order the SAI100X80H and confirm the ISO 15552 mounting interface, G1/2 port, M20x1.5 rod thread, and Viton H seal. Because this SKU has no magnet (-S), it cannot accept CS1-B/DS1-B sensors; order a magnet-equipped version if position sensing is needed. Sizing both ways: a neighbouring 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore yields 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For held loads, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAIF variant (bores 32-100) offers a built-in valve if needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X80H
- ✓ 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 SI100X80H FAQ
Yes, the SI100X80H is discontinued. The direct replacement is the SAI100X80H. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100 mm bore, 80 mm stroke, output force, G1/2 port, and mounting fixtures.
The G1/2 port bore delivers a push of 3927 N and pull of 3681 N 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. It operates at 30-800 mm/s with a 36 mm adjustable air cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X80H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X80H replacement — usually within 7-8 hours.