This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX1000S, 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 SI100BX1000S
The AirTAC Airtac SI100 Standard Cylinder SI100BX1000S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 1000mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX1000S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX1000S
- 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 SI100BX1000S
The AirTAC SI100BX1000S is a discontinued double-acting ISO 15552 profile cylinder featuring a SUS304 stainless steel piston rod, 1000 mm stroke, and a built-in magnet for position sensing. In this bore size it delivers 3927 N push and 3681 N pull at 0.5 MPa, operating through a G1/2 port with a 36 mm adjustable air cushion at each end. The direct replacement is the SAI100BX1000S, which preserves the original ISO 15552 mounting interface, bore, stroke, force, and porting for a seamless fixture swap.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for extended lifespan and lower start-up pressure. The legacy CS1-B/DS1-B sensors fit the installed magnet, while the SAI family expands your options with SAIL, SAIF, and BSAI lock variants.
Airtac SI100 Standard Cylinder SI100BX1000S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX1000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX1000S |
| Bore size | Ø100 mm |
| Stroke | 1000 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 SAI100BX1000S 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 SAI100BX1000S 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 SI100BX1000S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×1000 | 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 SI100BX1000S Is Used
Heavy Material Lifts
Handles vertical lifting of 200 kg payloads using the 100 mm bore, taking advantage of the 3927 N push force at 0.5 MPa while requiring external guides for the 1000 mm stroke.
Long-Stroke Diverters
Drives large package diverters or sorting gates over extended 1000 mm distances where a robust G1/2 port and 36 mm cushions manage high kinetic energy.
Stainless Rod Washdowns
Suitable for food-grade or washdown automation requiring the SUS304 piston rod option, utilizing the built-in magnet for CS1-B/DS1-B end-of-stroke confirmation.
Replacing the Airtac SI100 Standard Cylinder SI100BX1000S with the SAI100BX1000S
To replace the discontinued SI100BX1000S, order the SAI100BX1000S. Verify that your existing setup matches the ISO 15552 mounting interface, 100 mm bore, 1000 mm stroke, G1/2 port (available in PT, G, or NPT), and your specific mounting accessory. The -S magnet and -B SUS304 stainless rod are retained. If you need to size up or down, neighboring bores (80 mm or 125 mm) offer different force classes, with the 100 mm providing 5497 N at 0.7 MPa. Because this is a 1000 mm stroke, external guides are strongly recommended to prevent rod bending and excessive side loads. A plain cylinder will not hold a load without live air; the cushion only decelerates. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX1000S
- ✓ 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 SI100BX1000S FAQ
Yes, the AirTAC SI100BX1000S is discontinued. The direct replacement is the SAI100BX1000S. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 1000 mm stroke, G1/2 port, and mounting interface to fit existing fixtures directly.
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 theoretical maximum of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX1000S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX1000S replacement — usually within 7-8 hours.