This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX930S, 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.

The AirTAC Airtac SI100 Standard Cylinder SI100BX930S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 930mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX930S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100BX930S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore, 930mm stroke, and a SUS304 stainless steel rod. Delivering 3927 N push force at 0.5 MPa, it is replaced by the SAI100BX930S. This direct successor matches the G1/2 port, M20x1.5 thread, and mounting interface.
The SAI upgrade features two Y-shaped piston seals for low start-up pressure and long life. Note that the 930mm stroke requires external guides to prevent rod bending, and plain cylinders drift without air—use a SAIL lock or pilot check valve to hold loads.
| Model | Airtac SI100 Standard Cylinder SI100BX930S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX930S |
| Bore size | Ø100 mm |
| Stroke | 930 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 SAI100BX930S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100BX930S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×930 | 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).
Drives large package diverters or sorting gates over a 930mm travel distance, utilizing the SUS304 rod for washdown corrosion resistance.
Lowers heavy platens or press tools, relying on the 36mm adjustable air cushions to safely decelerate the substantial moving mass.
Actuates large pallet stops or lifting forks in automated storage systems, taking advantage of the 3927 N push force at 0.5 MPa.
To replace the SI100BX930S, order the SAI100BX930S. Confirm the ISO 15552 mounting interface, the G1/2 port, and the -S magnet for CS1-B/DS1-B switches. The -B rod is SUS304 stainless steel. Because the 930mm stroke exceeds 300mm, add external guides to prevent rod bending under side loads. If sizing down, a 80mm bore gives 2513 N push at 0.5 MPa; if sizing up, a 125mm bore gives 6136 N. A plain cylinder drifts without air, so for load holding use the SAIL lock variant or an external pilot check valve.
Replacement checklist
Yes, the SI100BX930S is discontinued. The direct replacement is the SAI100BX930S. It shares the same ISO 15552 mounting interface, 100mm bore, 930mm stroke, G1/2 port, and output force, fitting existing fixtures perfectly.
The bore is 100mm with 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.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX930S replacement — usually within 7-8 hours.