This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX700S, 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 SI100BX700S
The AirTAC Airtac SI100 Standard Cylinder SI100BX700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX700S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX700S
- 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 SI100BX700S
The AirTAC SI100BX700S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 700mm stroke. It delivers 3927N push force at 0.5MPa through a G1/2 port. The direct replacement is the SAI100BX700S, matching the bore, stroke, force, port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This -B variant uses a SUS304 stainless rod for corrosion resistance, and the -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100BX700S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX700S |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAI100BX700S 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 SAI100BX700S 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 SI100BX700S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SI100BX700S Is Used
Large Part Ejection
Pushes heavy molded components out of press beds using the 3927N force and 700mm reach.
Pallet Diversion
Actuates large diverters on packaging lines where the SUS304 rod resists humid washdown environments.
Material Lift Stations
Hoists 200kg loads vertically over 700mm, relying on external guides to prevent rod bending.
Replacing the Airtac SI100 Standard Cylinder SI100BX700S with the SAI100BX700S
To replace the SI100BX700S, order the SAI100BX700S. Verify the ISO 15552 mounting interface, 100mm bore, 700mm stroke, G1/2 port, and SUS304 rod (-B). The -S magnet allows current AirTAC switches to replace legacy CS1-B/DS1-B units. If downsizing, a 80mm bore yields 2513N at 0.5MPa; if upsizing, a 125mm bore yields 6136N. Note that a plain cylinder drifts on air loss as cushions only decelerate; use an external rod lock or pilot check valve for load holding, or specify SAIL/BSAI lock variants. For the 700mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX700S
- ✓ 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 SI100BX700S FAQ
Yes, the SI100BX700S is discontinued. The direct replacement is the SAI100BX700S. It is dimensionally interchangeable per ISO 15552, keeping the same 100mm bore, 700mm stroke, force, G1/2 port, and mounting interface.
This double-acting cylinder uses a G1/2 port. Force output is 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX700S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX700S replacement — usually within 7-8 hours.