This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX95S, 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 SI100BX95S
The AirTAC Airtac SI100 Standard Cylinder SI100BX95S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 95mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX95S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke95 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX95S
- 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 SI100BX95S
The AirTAC SI100BX95S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 95mm stroke. It delivers 3927N push force at 0.5MPa. The direct replacement is the SAI100BX95S, sharing the same interface, port, and force. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure. This -B variant uses a SUS304 stainless rod for corrosion resistance, and the -S magnet works with CS1-B/DS1-B sensors.
Note that standard cylinders drift without live air; use an external rod lock or the SAIL/BSAI lock variant for holding. The SAI family also adds the SAIF valve option. The G1/2 port and 36mm cushions remain unchanged.
Airtac SI100 Standard Cylinder SI100BX95S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX95S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX95S |
| Bore size | Ø100 mm |
| Stroke | 95 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 SAI100BX95S 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 SAI100BX95S 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 SI100BX95S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×95 | 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 SI100BX95S Is Used
Heavy-Duty Pressing
Applies the 3927N push force at 0.5MPa for seating bearings or assembling heavy components in automated machinery.
Product Diversion
Actuates large diverters or stops on high-throughput lines, with the 95mm stroke providing fast, precise routing of heavy goods.
Replacing the Airtac SI100 Standard Cylinder SI100BX95S with the SAI100BX95S
To replace the SI100BX95S, order the SAI100BX95S. Confirm the ISO 15552 mounting interface, 100mm bore, 95mm stroke, G1/2 port, and your specific mounting accessory. Retain the -S magnet for current AirTAC switches and the -B SUS304 rod. If you need more force, the 125mm bore offers 6136N push at 0.5MPa; if less is acceptable, the 80mm bore provides 2513N. Because this is a plain cylinder, it will not hold a load on air loss—the cushions only decelerate. For secure holding, specify the SAIL or BSAI lock variant, or add a pilot check valve. The SAIF variant integrates a 4M valve if desired.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX95S
- ✓ 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 SI100BX95S FAQ
Yes, the SI100BX95S is discontinued. The direct replacement is the SAI100BX95S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 95mm stroke, G1/2 port, and mounting interface.
It features a G1/2 port. The force ratings are: 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 SAI100BX95S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX95S replacement — usually within 7-8 hours.