This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX200S, 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 SI100BX200S
The AirTAC Airtac SI100 Standard Cylinder SI100BX200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX200S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX200S
- 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 SI100BX200S
The AirTAC SI100BX200S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 200mm stroke, SUS304 stainless piston rod and a piston magnet. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100BX200S. This direct upgrade shares the exact ISO 15552 mounting interface, G1/2 port and stroke, fitting existing fixtures directly.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The original -S magnet supports CS1-B/DS1-B switches, while the SAI uses current AirTAC sensors. A plain cylinder drifts on air loss; for load holding, use the SAIL or BSAI lock variants.
Airtac SI100 Standard Cylinder SI100BX200S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX200S |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAI100BX200S 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 SAI100BX200S 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 SI100BX200S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×200 | 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 SI100BX200S Is Used
Heavy Press Clamping
Provides 3927 N of push force at 0.5 MPa to secure heavy metal workpieces in machining and press fixtures, utilizing the SUS304 rod for coolant resistance.
Logistics Diverters
Actuates heavy-duty routing gates on high-speed conveyors, relying on the 36mm adjustable air cushions to decelerate the 25mm rod smoothly at stroke ends.
Replacing the Airtac SI100 Standard Cylinder SI100BX200S with the SAI100BX200S
To replace the SI100BX200S, order the SAI100BX200S. Confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 port thread (PT/G/NPT) and the -S magnet for current AirTAC switches. The SUS304 rod (-B) offers corrosion resistance versus standard carbon steel. At 0.5 MPa it yields 3927 N push and 3681 pull; neighbouring 80mm and 125mm bores give 2513 N and 6136 N respectively. The 36mm adjustable cushion decelerates loads but does not hold them without air—use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants for secure holding. The SAIF variant integrates a 4M valve for bores up to 100mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX200S
- ✓ 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 SI100BX200S FAQ
Yes, the SI100BX200S is discontinued. The direct replacement is the SAI100BX200S. It matches the ISO 15552 mounting interface, 100mm bore, 200mm stroke, G1/2 port and output force, dropping directly into existing fixtures.
It features a G1/2 air port. At 0.5 MPa it provides 3927 N push and 3681 N pull; at 0.7 MPa it pushes 5497 N; at 0.9 MPa 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX200S replacement — usually within 7-8 hours.