This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX600S, 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 SI100BX600S
The AirTAC Airtac SI100 Standard Cylinder SI100BX600S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 600mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX600S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX600S
- 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 SI100BX600S
The AirTAC SI100BX600S is a discontinued double-acting ISO 15552 profile cylinder featuring a SUS304 stainless piston rod, a 600 mm stroke, and a G1/2 port. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100BX600S.
The SAI direct maintains the exact ISO 15552 mounting interface, bore, and output force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure. The SAI family adds SAIL, SAIF, and BSAI lock variants.
Airtac SI100 Standard Cylinder SI100BX600S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX600S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX600S |
| Bore size | Ø100 mm |
| Stroke | 600 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 SAI100BX600S 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 SAI100BX600S 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 SI100BX600S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×600 | 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 SI100BX600S Is Used
Heavy Material Transfer
Drives robust pallet stops and heavy workpiece diverters on high-capacity conveyor lines using its 3927 N push force at 0.5 MPa.
Large Press Demolding
Ejects large molded components from presses, utilizing the 600 mm stroke and SUS304 stainless rod for extended reach in corrosive shop environments.
Replacing the Airtac SI100 Standard Cylinder SI100BX600S with the SAI100BX600S
To replace the SI100BX600S, order the SAI100BX600S, confirming the ISO 15552 interface, 100 mm bore, 600 mm stroke, G1/2 port, and SUS304 rod. The -S magnet works with legacy CS1-B/DS1-B sensors; SAI uses current AirTAC switches. For loads needing 7068 N at 0.9 MPa, this 100 mm bore fits; if less force is needed, an 80 mm bore provides 2513 N at 0.5 MPa. At 600 mm stroke, use external guides to prevent rod bending from side loads. Plain cylinders drift on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX600S
- ✓ 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 SI100BX600S FAQ
Yes, the SI100BX600S is discontinued. The direct replacement is the SAI100BX600S. It shares the same ISO 15552 mounting interface, 100 mm bore, 600 mm stroke, G1/2 port, and output force, fitting existing fixtures perfectly.
It features a G1/2 air port. Force ratings are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX600S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX600S replacement — usually within 7-8 hours.