This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X810, 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 SI100X810
The AirTAC Airtac SI100 Standard Cylinder SI100X810 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 810mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X810, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke810 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X810
- 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 SI100X810
The AirTAC SI100X810 is a discontinued double-acting ISO 15552 profile cylinder with an 810 mm stroke and a 100 mm bore. It delivers 3927 N of push force at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X810, a direct upgrade retaining the exact same ISO 15552 mounting interface, stroke, force, and port size to fit existing fixtures seamlessly.
The SAI replacement introduces an upgraded piston seal featuring two Y-shaped one-way elements for longer life and lower start-up pressure. Note that this specific SKU lacks a magnet (-S) and cannot accept a position sensor.
Airtac SI100 Standard Cylinder SI100X810 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X810 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X810 |
| Bore size | Ø100 mm |
| Stroke | 810 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 SAI100X810 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 SAI100X810 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 SI100X810
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×810 | 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 SI100X810 Is Used
Pallet Transfer Diverters
Drives heavy pallet routing arms on high-throughput packaging lines, utilizing the 5497 N push force at 0.7 MPa to shift loaded pallets smoothly between conveyor belts.
Automated Storage Retrieval
Actuates vertical extraction arms in automated storage systems, moving goods deep into racking bays while relying on external guides to manage the long 810 mm stroke.
Replacing the Airtac SI100 Standard Cylinder SI100X810 with the SAI100X810
To replace the SI100X810, order the SAI100X810 and verify your ISO 15552 mounting accessory (such as LB foot or TC trunnion), G1/2 port thread (PT/G/NPT), and 810 mm stroke. Because this SKU has no magnet, it cannot support legacy CS1-B/DS1-B sensors; if sensing is required, select an SAI model with the -S suffix. When sizing, consider neighbouring bores: an 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore provides 6136 N. For load holding, note that a standard cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Finally, with an 810 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X810
- ✓ 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 SI100X810 FAQ
Yes, the SI100X810 is discontinued. The direct replacement is the AirTAC SAI100X810. It is dimensionally interchangeable per ISO 15552, matching the 100 mm bore, 810 mm stroke, G1/2 port, and mounting interface, so it fits existing fixtures without modification.
This 100 mm bore double-acting cylinder features a G1/2 air port and a 25 mm piston rod. 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 theoretical maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X810
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X810 replacement — usually within 7-8 hours.