This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX10S, 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 SI100BX10S
The AirTAC Airtac SI100 Standard Cylinder SI100BX10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 10mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke10 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX10S
- 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 SI100BX10S
The AirTAC SI100BX10S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 10mm stroke. It delivers 3927 N push force at 0.5 MPa. The direct replacement is the SAI100BX10S, which matches the exact ISO 15552 mounting interface, port size (G1/2), and 801 kgf maximum force. This B variant specifies a SUS304 stainless piston rod for corrosion resistance.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI100 Standard Cylinder SI100BX10S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX10S |
| Bore size | Ø100 mm |
| Stroke | 10 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 SAI100BX10S 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 SAI100BX10S 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 SI100BX10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×10 | 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 SI100BX10S Is Used
Short-Stroke Clamping
Ideal for high-force 3927 N clamping of heavy steel plates in machining fixtures using the SUS304 rod.
Product Diversion
Provides robust 10mm actuation to push heavy pallets off a main conveyor line in packaging plants.
Press Ejection
Delivers rapid 30-800 mm/s ejection of formed parts from stamping presses, handling up to 200 kg vertical loads.
Replacing the Airtac SI100 Standard Cylinder SI100BX10S with the SAI100BX10S
To replace the SI100BX10S, order the SAI100BX10S to retain the identical ISO 15552 mounting interface, 100mm bore, 10mm stroke, and G1/2 port. Confirm you specify the B code for the SUS304 stainless rod and the S suffix for the piston magnet. If you need to scale, neighbouring bores are 80mm and 125mm; at 0.5 MPa this 100mm bore gives 3927 N push and 3681 N pull. Note that a plain cylinder drifts on air loss as the cushion only decelerates—for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX10S
- ✓ 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 SI100BX10S FAQ
Yes, the SI100BX10S is discontinued. The direct replacement is the SAI100BX10S, which maintains the same ISO 15552 mounting interface, 100mm bore, 10mm stroke, G1/2 port, and output force.
The G1/2 port bore delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a maximum 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX10S replacement — usually within 7-8 hours.