This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX190S, 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 SI100BX190S
The AirTAC Airtac SI100 Standard Cylinder SI100BX190S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 190mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX190S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX190S
- 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 SI100BX190S
The AirTAC SI100BX190S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 190mm stroke. It delivers 3927N push force at 0.5MPa through a G1/2 port. The SUS304 stainless rod (B option) provides corrosion resistance. The direct replacement is the SAI100BX190S, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This -S model carries a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI100 Standard Cylinder SI100BX190S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX190S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX190S |
| Bore size | Ø100 mm |
| Stroke | 190 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 SAI100BX190S 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 SAI100BX190S 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 SI100BX190S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×190 | 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 SI100BX190S Is Used
Heavy Press Clamping
Ideal for exerting high clamping force on large fabrication parts, utilizing the 3927N push force at 0.5MPa with the corrosion-resistant SUS304 rod.
Pallet Diversion
Provides robust actuation for heavy pallet routing gates, with the 190mm stroke offering ample travel to clear large workpiece profiles.
Material Lift Stops
Acts as a heavy-duty physical stop for incoming goods on gravity conveyors, safely absorbing kinetic energy using the adjustable air cushions.
Replacing the Airtac SI100 Standard Cylinder SI100BX190S with the SAI100BX190S
To replace the SI100BX190S, order the SAI100BX190S. Confirm the ISO 15552 mounting interface, the G1/2 port, the M20x1.5 rod thread, and the -S magnet for current AirTAC switches. The SUS304 rod suits wet environments. For sizing, a neighbouring 80mm bore yields 2513N push at 0.5MPa, while the 125mm bore yields 6136N. The cushion only decelerates; it does not hold load on air loss. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. At 190mm stroke, rod bending is low, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX190S
- ✓ 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 SI100BX190S FAQ
Yes, the SI100BX190S is discontinued. The direct replacement is the SAI100BX190S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 190mm stroke, G1/2 port, and mounting accessories.
This double-acting cylinder operates at 30-800 mm/s. It generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801 kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX190S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX190S replacement — usually within 7-8 hours.