This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX130, 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 SI100BX130 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 130mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX130, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100BX130 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 130mm stroke, delivering 3927N push force at 0.5MPa via a G1/2 port. AirTAC replaced this legacy unit with the SAI100BX130, a direct upgrade retaining the exact interface, bore, stroke, force, port and mounting. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses a SUS304 stainless steel rod (B option) for corrosion resistance, but lacks a magnet, so it cannot accept position switches.
The SAI family also introduces SAIL, SAIF and BSAI lock variants absent in the SI line. Note that a plain cylinder drifts on air loss; the air cushion only decelerates near stroke end, so use a pilot check valve or SAIL lock for load holding.
| Model | Airtac SI100 Standard Cylinder SI100BX130 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX130 |
| Bore size | Ø100 mm |
| Stroke | 130 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 SAI100BX130 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 SAI100BX130 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. |
| ×130 | 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 stamping or pressing fixtures requiring up to 3927N of push force at 0.5MPa, utilizing the robust 100mm bore and SUS304 stainless rod.
Actuates heavy pallet stops or routing gates in conveyor systems where the 130mm stroke provides ample travel without excessive overhang.
Ideal for packaging lines or washdown areas where the SUS304 stainless piston rod provides necessary resistance against moisture and chemicals.
To replace the discontinued SI100BX130, order the SAI100BX130 direct. Confirm the ISO 15552 mounting interface, 100mm bore, 130mm stroke, G1/2 port (PT/G/NPT threads) and matching mounting accessory. This SKU has no magnet (-S), so it cannot support CS1-B/DS1-B sensors; order an SAI with S if sensing is needed. Sizing both ways: a neighbouring 80mm bore yields 2513N push at 0.5MPa, while a 125mm bore yields 6136N. For this 130mm stroke, side-load is minimal, but always guide the rod to prevent bending. The B suffix indicates a SUS304 stainless rod; default is carbon steel. For load holding on air loss, the cushion only decelerates, so specify an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI100BX130 is discontinued. The direct replacement is the SAI100BX130. It is dimensionally interchangeable per ISO 15552, matching the bore, stroke, force, G1/2 port and mounting interface exactly, but adds an upgraded piston seal.
The G1/2 port feeds a 100mm bore that generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Speed is 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX130 replacement — usually within 7-8 hours.